sql server 关于表中只增标识问题 C# 实现自动化打开和关闭可执行文件(或 关闭停止与系统交互的可执行文件) ajaxfileupload插件上传图片功能,用MVC和aspx做后台各写了一个案例 将小写阿拉伯数字转换成大写的汉字, C# WinForm 中英文实现, 国际化实现的简单方法 ASP.NET Core 2 学习笔记(六)ASP.NET Core 2 学习笔记(三)

sql server 关于表中只增标识问题

 

由于我们系统时间用的过长,数据量大,设计是采用自增ID

我们插入数据的时候把ID也写进去,我们可以采用 关闭和开启自增标识

没有关闭的时候 ,提示一下错误,不能修改

sql server 关于表中只增标识问题  C# 实现自动化打开和关闭可执行文件(或 关闭停止与系统交互的可执行文件)  ajaxfileupload插件上传图片功能,用MVC和aspx做后台各写了一个案例  将小写阿拉伯数字转换成大写的汉字, C# WinForm 中英文实现, 国际化实现的简单方法    ASP.NET Core 2 学习笔记(六)ASP.NET Core 2 学习笔记(三)

set identity_insert test on  关闭标识 在添加时候 提示成功

sql server 关于表中只增标识问题  C# 实现自动化打开和关闭可执行文件(或 关闭停止与系统交互的可执行文件)  ajaxfileupload插件上传图片功能,用MVC和aspx做后台各写了一个案例  将小写阿拉伯数字转换成大写的汉字, C# WinForm 中英文实现, 国际化实现的简单方法    ASP.NET Core 2 学习笔记(六)ASP.NET Core 2 学习笔记(三)

set identity_insert 表名  on  关闭

set identity_insert 表名 off   开启

C# 实现自动化打开和关闭可执行文件(或 关闭停止与系统交互的可执行文件)

 
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string file =Application.StartupPath+@"\WinFrm_Main.exe";//运行程序位置
       public Form1()
       {
           InitializeComponent();
       }
 
       private void button1_Click(object sender, EventArgs e)
       {
         //  StopExe(file);
           timer1.Enabled = false;
          
       
       private void button2_Click(object sender, EventArgs e)
       {
           timer1.Enabled = true;
       }
       void StopExe(string file)
       {
           Process pr = new Process();//声明一个进程类对象
           pr.StartInfo.FileName = file;//指定运行的程序,
           pr.Start();//运行
       }
       void StartExt()
       {
           //Process[] p_arry = Process.GetProcesses();//得到系统所有进程
           //for (int i = 0; i < p_arry.Length; i++)//遍历每个进程
           //{
           //    if (p_arry[i].ProcessName == "WinFrm_Main" && !p_arry[i].Responding)//发现有名为QQ的进程
           //    {
           //        p_arry[i].Kill();//就结束它。
           //        return;
           //    }
           //}
 
           Process[] proc = Process.GetProcessesByName("WinFrm_Main");//创建一个进程数组,把与此进程相关的资源关联。
           for (int i = 0; i < proc.Length; i++)
           {
               proc[i].Kill();  //逐个结束进程.
           }
 
           System.GC.Collect();//垃圾回收
          
             
       }
 
       private void timer1_Tick(object sender, EventArgs e)
       {
           Process[] proc = Process.GetProcessesByName("WinFrm_Main");//创建一个进程数组,把与此进程相关的资源关联。
           for (int i = 0; i < proc.Length; i++)
           {
               if (proc[i].ProcessName == "WinFrm_Main" && !proc[i].Responding)//发现有名为WinFrm_Main的进程 或 WinFrm_Main和电脑停止交互 就退出
               {
                   proc[i].Kill();//就结束它。
                   //StopExe(file);
               }
           }
           if (proc.Length==0)//启动
               StopExe(file);
           System.GC.Collect();//垃圾回收
 
       }

下载地址:http://download.****.net/detail/amy1314250/9849891

ajaxfileupload插件上传图片功能,用MVC和aspx做后台各写了一个案例

 

HTML代码 和js 代码

sql server 关于表中只增标识问题  C# 实现自动化打开和关闭可执行文件(或 关闭停止与系统交互的可执行文件)  ajaxfileupload插件上传图片功能,用MVC和aspx做后台各写了一个案例  将小写阿拉伯数字转换成大写的汉字, C# WinForm 中英文实现, 国际化实现的简单方法    ASP.NET Core 2 学习笔记(六)ASP.NET Core 2 学习笔记(三)
@{
    Layout = null;
}

<!DOCTYPE html>

<html>
<head>
    <meta name="viewport" content="width=device-width" />
    <title>Index</title>
    <script src="~/js/jquery-1.8.3.min.js"></script>
    <script src="~/js/ajaxfileupload.js"></script>
    <script type="text/javascript">
        $(function () {
            $("#butLoad").click(function () {
                $("#img1").attr("src", "../images/timg.gif");
                //调用action
                $.ajaxFileUpload({
                    url: "../Upload/UpLoad",
                    secureuri: false, //一般设置为false
                    fileElementId: 'Img', //文件上传空间的id属性  <input type="file" id="Img" name="file" />
                    dataType: 'json', //返回值类型
                    success: function (data, status)  //服务器成功响应处理函数
                    {
                        $("#img1").attr("src", data.imgurl);
                        if (typeof (data.error) != 'undefined') {
                            if (data.error != '') {
                                alert(data.error);
                            } else {
                                alert(data.msg);
                            }
                        }
                    },
                    error: function (data, status, e)//服务器响应失败处理函数
                    {
                        alert(e);
                    }

                });
            });

            $("#butLoadAsp").click(function () {
                $("#imgAsp").attr("src", "../images/timg.gif");
                //调用aspx
                $.ajaxFileUpload({
                    url: "../Ajax/UpLoad.aspx?__Action=UpLoadImg",
                    secureuri: false, //一般设置为false
                    fileElementId: 'ImgAsp', //文件上传空间的id属性  <input type="file" id="Img" name="file" />
                    dataType: 'json', //返回值类型
                    success: function (data, status)  //服务器成功响应处理函数
                    {
                        $("#imgAsp").attr("src", data.imgurl);
                        if (typeof (data.error) != 'undefined') {
                            if (data.error != '') {
                                alert(data.error);
                            } else {
                                alert(data.msg);
                            }
                        }
                    },
                    error: function (data, status, e)//服务器响应失败处理函数
                    {
                        alert(e);
                    }

                });

            });
        });
        function ChImages(obj) {

            $("#img1").attr("src", obj.value)
        }
    </script>
</head>
<body>
    <div>
        <h3>mvc-ajax</h3>
        <input type="file" id="Img" name="file" onchange="ChImages(this)" /> @*注意:name一定要写*@
        <button id="butLoad">上传</button>
        <img src="" id="img1" alt="请选择图片" width="200" />
    </div>
    <div>
        <h3>asp.net-ajax</h3>
        <input type="file" id="ImgAsp" name="file" /> @*注意:name一定要写*@
        <button id="butLoadAsp">上传</button>
        <img src="" id="imgAsp" alt="请选择图片" width="200" />
    </div>
</body>
</html>
sql server 关于表中只增标识问题  C# 实现自动化打开和关闭可执行文件(或 关闭停止与系统交互的可执行文件)  ajaxfileupload插件上传图片功能,用MVC和aspx做后台各写了一个案例  将小写阿拉伯数字转换成大写的汉字, C# WinForm 中英文实现, 国际化实现的简单方法    ASP.NET Core 2 学习笔记(六)ASP.NET Core 2 学习笔记(三)

mvc 控制中代码

sql server 关于表中只增标识问题  C# 实现自动化打开和关闭可执行文件(或 关闭停止与系统交互的可执行文件)  ajaxfileupload插件上传图片功能,用MVC和aspx做后台各写了一个案例  将小写阿拉伯数字转换成大写的汉字, C# WinForm 中英文实现, 国际化实现的简单方法    ASP.NET Core 2 学习笔记(六)ASP.NET Core 2 学习笔记(三)
[HttpPost]//过滤
        public JsonResult UpLoad()
        {

            HttpFileCollectionBase files = Request.Files;//这里只能用<input type="file" />才能有效果,因为服务器控件是HttpInputFile类型
            object result = new { error="error", msg="上传失败",imgurl= files[0].FileName};
            string msg = string.Empty;
            string error = string.Empty;
            string imgurl;
            if (files.Count > 0)
            {
                string savePath = Server.MapPath("/") + "UpLoadImg\\";//保存文件地址
                //string saveDir = System.Web.HttpContext.Current.Server.MapPath(savePath);
                if (!Directory.Exists(savePath)) {
                    Directory.CreateDirectory(savePath);
                }
                files[0].SaveAs(savePath + System.IO.Path.GetFileName(files[0].FileName));
                msg = " 成功! 文件大小为:" + files[0].ContentLength;
                imgurl = "../UpLoadImg/" + files[0].FileName;
                result =new { error="success", msg= msg, imgurl=imgurl };
            }
            return Json(result, "text/html");
        }
sql server 关于表中只增标识问题  C# 实现自动化打开和关闭可执行文件(或 关闭停止与系统交互的可执行文件)  ajaxfileupload插件上传图片功能,用MVC和aspx做后台各写了一个案例  将小写阿拉伯数字转换成大写的汉字, C# WinForm 中英文实现, 国际化实现的简单方法    ASP.NET Core 2 学习笔记(六)ASP.NET Core 2 学习笔记(三)

aspx.cs 代码

sql server 关于表中只增标识问题  C# 实现自动化打开和关闭可执行文件(或 关闭停止与系统交互的可执行文件)  ajaxfileupload插件上传图片功能,用MVC和aspx做后台各写了一个案例  将小写阿拉伯数字转换成大写的汉字, C# WinForm 中英文实现, 国际化实现的简单方法    ASP.NET Core 2 学习笔记(六)ASP.NET Core 2 学习笔记(三)
public partial class UpLoad : System.Web.UI.Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {
            string action = Request["__Action"];
            if (action==null || action == string.Empty)
                return;
            Page p = this;
            Type pageType = p.GetType();
            MethodInfo method = pageType.GetMethod(action);
            if (method != null)
                method.Invoke(p, null);
        }
        public void UpLoadImg()
        {
            HttpFileCollection files = Request.Files;//这里只能用<input type="file" />才能有效果,因为服务器控件是HttpInputFile类型
          //  object result = new { error = "error", msg = "上传失败", imgurl = files[0].FileName };
            string result = "{ error:'error', msg:'上传失败',imgurl:'" + files[0].FileName + "'}";
            string msg = string.Empty;
            string error = string.Empty;
            string imgurl;
            if (files.Count > 0)
            {
                string savePath = Server.MapPath("/") + "UpLoadImg\\";//保存文件地址
                //string saveDir = System.Web.HttpContext.Current.Server.MapPath(savePath);
                if (!Directory.Exists(savePath))
                {
                    Directory.CreateDirectory(savePath);
                }
                files[0].SaveAs(savePath + System.IO.Path.GetFileName(files[0].FileName));
                msg = " 成功! 文件大小为:" + files[0].ContentLength;
                imgurl = "../UpLoadImg/" + files[0].FileName;
                result = "{ error:'" + error + "', msg:'" + msg + "',imgurl:'" + imgurl + "'}";
            }
            Response.Clear();
            Response.Write(result.ToString());
            Response.End();

        }
    } 
sql server 关于表中只增标识问题  C# 实现自动化打开和关闭可执行文件(或 关闭停止与系统交互的可执行文件)  ajaxfileupload插件上传图片功能,用MVC和aspx做后台各写了一个案例  将小写阿拉伯数字转换成大写的汉字, C# WinForm 中英文实现, 国际化实现的简单方法    ASP.NET Core 2 学习笔记(六)ASP.NET Core 2 学习笔记(三)

MVC和aspx 有些不同,MVC获取HttpInputFile 用HttpFileCollectionBase 类,aspx获取HttpInputFile 用HttpFileCollection 类

个人学习,请多多指教

代码:http://files.cnblogs.com/files/BensonHai/UploadImage.rar  本人是用VS2015写的

将小写阿拉伯数字转换成大写的汉字,

 

#region 小写转大写
       
            /// <summary>    /// 
            /// 金额转为大写金额   
            ///  </summary>   
            /// <param name="LowerMoney"></param>   <returns></returns>  
        public static string MoneyToChinese(decimal NubMoney)
        {
           string LowerMoney = NubMoney.ToString();
            string functionReturnValue = null;
            bool IsNegative = false;
            // 是否是负数  
            if (LowerMoney.Trim().Substring(0, 1) == "-")
            {        // 是负数则先转为正数    
                LowerMoney = LowerMoney.Trim().Remove(0, 1);
                IsNegative = true;
            }
            string strLower = null;
            string strUpart = null; string strUpper = null; int iTemp = 0;
            // 保留两位小数 123.489→123.49  123.4→123.4    
            LowerMoney = Math.Round(double.Parse(LowerMoney), 2).ToString();
            if (LowerMoney.IndexOf(".") > 0)
            {
                if (LowerMoney.IndexOf(".") == LowerMoney.Length - 2)
                { LowerMoney = LowerMoney + "0"; }
            }
            else
            {
                LowerMoney = LowerMoney + ".00";
            } strLower = LowerMoney; iTemp = 1; strUpper = ""; while (iTemp <= strLower.Length)
            {
                switch (strLower.Substring(strLower.Length - iTemp, 1))
                {
                    case ".": strUpart = "圆";
                        break;
                    case "0": strUpart = "零"; break;
                    case "1": strUpart = "壹";
                        break;
                    case "2": strUpart = "贰"; break;
                    case "3": strUpart = "叁";
                        break;
                    case "4": strUpart = "肆"; break;
                    case "5": strUpart = "伍";
                        break;
                    case "6": strUpart = "陆"; break;
                    case "7": strUpart = "柒";
                        break;
                    case "8": strUpart = "捌"; break;
                    case "9": strUpart = "玖";
                        break;
                } switch (iTemp)
                {
                    case 1: strUpart = strUpart + "分";
                        break;
                    case 2: strUpart = strUpart + "角"; break;
                    case 3:
                        strUpart = strUpart + ""; break;
                    case 4: strUpart = strUpart + "";
                        break;
                    case 5: strUpart = strUpart + "拾"; break;
                    case 6:
                        strUpart = strUpart + "佰"; break;
                    case 7: strUpart = strUpart + "仟";
                        break;
                    case 8: strUpart = strUpart + "万"; break;
                    case 9:
                        strUpart = strUpart + "拾"; break;
                    case 10:
                        strUpart = strUpart + "佰"; break;
                    case 11:
                        strUpart = strUpart + "仟"; break;
                    case 12:
                        strUpart = strUpart + "亿"; break;
                    case 13:
                        strUpart = strUpart + "拾"; break;
                    case 14:
                        strUpart = strUpart + "佰"; break;
                    case 15:
                        strUpart = strUpart + "仟"; break;
                    case 16:
                        strUpart = strUpart + "万"; break;
                    default:
                        strUpart = strUpart + ""; break;
                }
                strUpper = strUpart + strUpper; iTemp = iTemp + 1;
            } strUpper = strUpper.Replace("零拾", "零");
            strUpper = strUpper.Replace("零佰", "零"); strUpper = strUpper.Replace("零仟", "零"); strUpper = strUpper.Replace("零零零", "零");
            strUpper = strUpper.Replace("零零", "零"); strUpper = strUpper.Replace("零角零分", "整"); strUpper = strUpper.Replace("零分", "整");
            strUpper = strUpper.Replace("零角", "零"); strUpper = strUpper.Replace("零亿零万零圆", "亿圆");
            strUpper = strUpper.Replace("亿零万零圆", "亿圆"); strUpper = strUpper.Replace("零亿零万", "亿");
            strUpper = strUpper.Replace("零万零圆", "万圆"); strUpper = strUpper.Replace("零亿", "亿");
            strUpper = strUpper.Replace("零万", "万"); strUpper = strUpper.Replace("零圆", "圆");
            strUpper = strUpper.Replace("零零", "零");
            // 对壹圆以下的金额的处理    
            if (strUpper.Substring(0, 1) == "圆")
            {
                strUpper = strUpper.Substring(1, strUpper.Length - 1);
            } if (strUpper.Substring(0, 1) == "零")
            {
                strUpper = strUpper.Substring(1, strUpper.Length - 1);
            }
            if (strUpper.Substring(0, 1) == "角")
            {
                strUpper = strUpper.Substring(1, strUpper.Length - 1);
            } if (strUpper.Substring(0, 1) == "分")
            {
                strUpper = strUpper.Substring(1, strUpper.Length - 1);
            } if (strUpper.Substring(0, 1) == "整")
            {
                strUpper = "零圆整";
            } functionReturnValue = strUpper; if (IsNegative == true)
            {
                return "负" + functionReturnValue;
            }
            else { return functionReturnValue; }
        }

/// <summary>    /// 
        /// 金额转为大写金额   
        ///  </summary>   
        /// <param name="LowerMoney"></param>   <returns></returns>  
        public static string NumberToChinese(decimal NubMoney)
        {
            string LowerMoney = NubMoney.ToString();
            string functionReturnValue = null;
            bool IsNegative = false;
            // 是否是负数  
            if (LowerMoney.Trim().Substring(0, 1) == "-")
            {        // 是负数则先转为正数    
                LowerMoney = LowerMoney.Trim().Remove(0, 1);
                IsNegative = true;
            }
            string strLower = null;
            string strUpart = null; string strUpper = null; int iTemp = 0;
            // 保留两位小数 123.489→123.49  123.4→123.4    
            LowerMoney = Math.Round(double.Parse(LowerMoney), 2).ToString();
            if (LowerMoney.IndexOf(".") > 0)
            {
                if (LowerMoney.IndexOf(".") == LowerMoney.Length - 2)
                { LowerMoney = LowerMoney + "0"; }
            }
            else
            {
                LowerMoney = LowerMoney + ".00";
            } strLower = LowerMoney; iTemp = 1; strUpper = ""; while (iTemp <= strLower.Length)
            {
                switch (strLower.Substring(strLower.Length - iTemp, 1))
                {
                    case ".": strUpart = "";
                        break;
                    case "0": strUpart = "零"; break;
                    case "1": strUpart = "一";
                        break;
                    case "2": strUpart = "二"; break;
                    case "3": strUpart = "三";
                        break;
                    case "4": strUpart = "四"; break;
                    case "5": strUpart = "五";
                        break;
                    case "6": strUpart = "六"; break;
                    case "7": strUpart = "七";
                        break;
                    case "8": strUpart = "八"; break;
                    case "9": strUpart = "九";
                        break;
                } 
                switch (iTemp)
                {
                    case 1: strUpart = strUpart + "";
                        break;
                    case 2: strUpart = strUpart + ""; break;
                    case 3:
                        strUpart = strUpart + ""; break;
                    case 4: strUpart = strUpart + "";
                        break;
                    case 5: strUpart = strUpart + "拾"; break;
                    case 6:
                        strUpart = strUpart + "佰"; break;
                    case 7: strUpart = strUpart + "仟";
                        break;
                    case 8: strUpart = strUpart + "万"; break;
                    case 9:
                        strUpart = strUpart + "拾"; break;
                    case 10:
                        strUpart = strUpart + "佰"; break;
                    case 11:
                        strUpart = strUpart + "仟"; break;
                    case 12:
                        strUpart = strUpart + "亿"; break;
                    case 13:
                        strUpart = strUpart + "拾"; break;
                    case 14:
                        strUpart = strUpart + "佰"; break;
                    case 15:
                        strUpart = strUpart + "仟"; break;
                    case 16:
                        strUpart = strUpart + "万"; break;
                    default:
                        strUpart = strUpart + ""; break;
                }
                strUpper = strUpart + strUpper; iTemp = iTemp + 1;
            }
            strUpper = strUpper.Replace("零拾", "零");
            strUpper = strUpper.Replace("零佰", "零"); 
            strUpper = strUpper.Replace("零仟", "零");
            strUpper = strUpper.Replace("零零零", "零");
            strUpper = strUpper.Replace("零零", "零"); 
            strUpper = strUpper.Replace("零角零分", "整"); 
            strUpper = strUpper.Replace("零分", "整");
            strUpper = strUpper.Replace("零角", "零");
            strUpper = strUpper.Replace("零亿零万零圆", "亿圆");
            strUpper = strUpper.Replace("亿零万零圆", "亿圆"); 
            strUpper = strUpper.Replace("零亿零万", "亿");
            strUpper = strUpper.Replace("零万零圆", "万圆"); 
            strUpper = strUpper.Replace("零亿", "亿");
            strUpper = strUpper.Replace("零万", "万");
            if (strUpper.IndexOf("一亿万") > -1)
                strUpper = strUpper.Replace("万","");
            strUpper = strUpper.Replace("零圆", "圆");
            strUpper = strUpper.Replace("零零", "零");
            // 对壹圆以下的金额的处理    
            if (strUpper.Substring(0, 1) == "圆")
            {
                strUpper = strUpper.Substring(1, strUpper.Length - 1);
            } if (strUpper.Substring(0, 1) == "零")
            {
                strUpper = strUpper.Substring(1, strUpper.Length - 1);
            }
            if (strUpper.Substring(0, 1) == "角")
            {
                strUpper = strUpper.Substring(1, strUpper.Length - 1);
            } if (strUpper.Substring(0, 1) == "分")
            {
                strUpper = strUpper.Substring(1, strUpper.Length - 1);
            } if (strUpper.Substring(0, 1) == "整")
            {
                strUpper = "零圆整";
            }
            if (strUpper.LastIndexOf("零") > -1) {
                strUpper = strUpper.Substring(0, strUpper.Length - 1);
            }
            functionReturnValue = strUpper; 
            if (IsNegative == true)
            {
                return "负" + functionReturnValue;
            }

else { return functionReturnValue; }
        } 
        #endregion

C# WinForm 中英文实现, 国际化实现的简单方法

 

来源:http://www.jb51.net/article/45675.htm,今天看到了借鉴过了,保存一下,下次开发直接用嘻嘻

软件行业发展到今天,国际化问题一直都占据非常重要的位置,而且应该越来越被重视。对于开发人员而言,在编写程序之前,国际化问题是首先要考虑的一个问题,也许有时候这个问题已经在设计者的考虑范围之内,但终归要开发人员去做实现的。因此,如何实现国际化,是开发人员必须掌握的一项基本技能。
今天,这里要讲的就是,在利用C#进行WinForm开发时,国际化是怎么实现的。鉴于时间及篇幅关系,这里仅仅介绍一种简单的国际化实现方法,可能这里提到的方法已经有非常多人提到过,但笔者还是不厌其烦地介绍一下。
要在C#中实现国际化,需要相关资源文件,比如要在一个软件中支持英文、中文两种语言,那么就必须有这两种语言的资源文件,这在C#中可以采用资源文件(后缀名为.resx)来实现,我们不妨定义英文资源文件名称为Resource.en-US,中文资源文件名称为Resource.zh-CN,两种资源文件所涉及的ID都应该是一样的(这对于其他更多的资源文件均是一样的),只不过是展示的名称不同罢了。
有了这两种资源文件,接下来就要考虑如何做的问题了。为了适应多处使用的情形,这里笔者单独编写了一个类ResourceCulture,该类包含了一些静态方法,主要作用是用来设置当前语言及返回当前的语言的相关字符串。该类代码如下:

using System.Reflection;
using System.Resources;
using System.Threading;
using System.Globalization;

namespace GlobalizationTest
{
    class ResourceCulture
    {
        /// <summary>
        /// Set current culture by name
        /// </summary>
        /// <param name="name">name</param>
        public static void SetCurrentCulture(string name)
        {
            if (string.IsNullOrEmpty(name))
            {
                name = "en-US";
            }

Thread.CurrentThread.CurrentCulture = new CultureInfo(name);
        }

/// <summary>
        /// Get string by id
        /// </summary>
        /// <param name="id">id</param>
        /// <returns>current language string</returns>
        public static string GetString(string id)
        {
            string strCurLanguage = "";

try
            {
                ResourceManager rm = new ResourceManager("GlobalizationTest.Resource", Assembly.GetExecutingAssembly());
                CultureInfo ci = Thread.CurrentThread.CurrentCulture;
                strCurLanguage = rm.GetString(id, ci);
            }
            catch
            {
                strCurLanguage = "No id:" + id + ", please add.";
            }

return strCurLanguage;
        }
    }
}

在Form1中的代码如下:

/**
 * This project is just a example to show how to do the globalization in C# winform.
 * You and rebuild and/or modify it by yourself if you want.
 * Specially, this project was created in Visual Studio 2010.
 * 
 * Project Name : GlobalizationTest
 * Create Date  : April 29th, 2010
 * */

using System;
using System.Windows.Forms;

namespace GlobalizationTest
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

/// <summary>
        /// Set the resource culture
        /// </summary>
        private void SetResourceCulture()
        {
            // Set the form title text
            this.Text = ResourceCulture.GetString("Form1_frmText");

// Set the groupbox text
            this.gbLanguageView.Text = ResourceCulture.GetString("Form1_gbLanguageViewText");
            this.gbLanguageSelection.Text = ResourceCulture.GetString("Form1_gbLanguageSelectionText");

// Set the label text
            this.lblCurLanguageText.Text = ResourceCulture.GetString("Form1_lblCurLanguageText");
            this.lblNameText.Text = ResourceCulture.GetString("Form1_lblNameText");
            this.lblPhoneText.Text = ResourceCulture.GetString("Form1_lblPhoneText");

// Set the button text
            this.btnMsgShow.Text = ResourceCulture.GetString("Form1_btnMsgShowText");

// Set radiobutton text
            this.rbEnglish.Text = ResourceCulture.GetString("Language_EnglishText");
            this.rbChinese.Text = ResourceCulture.GetString("Language_ChineseText");

// Set the current language text
            if (rbEnglish.Checked)
            {
                this.lblCurLanguage.Text = ResourceCulture.GetString("Language_EnglishText");
            }
            else if (rbChinese.Checked)
            {
                this.lblCurLanguage.Text = ResourceCulture.GetString("Language_ChineseText");
            }
        }

private void Form1_Load(object sender, EventArgs e)
        {
            // Set the default language
            ResourceCulture.SetCurrentCulture("en-US");

this.SetResourceCulture();
        }

private void btnMsgShow_Click(object sender, EventArgs e)
        {
            if(string.IsNullOrEmpty(txtName.Text))
            {
                MessageBox.Show(ResourceCulture.GetString("Form1_msgbox_nameText"), ResourceCulture.GetString("Form1_msgbox_TitleText"), 
                    MessageBoxButtons.OK, MessageBoxIcon.Exclamation);
                return;
            }

if (string.IsNullOrEmpty(txtPhone.Text))
            {
                MessageBox.Show(ResourceCulture.GetString("Form1_msgbox_phoneText"), ResourceCulture.GetString("Form1_msgbox_TitleText"), 
                    MessageBoxButtons.OK, MessageBoxIcon.Exclamation);
                return;
            }

MessageBox.Show(ResourceCulture.GetString("Form1_msgbox_InfoText") + txtName.Text + ", " + txtPhone.Text,
                ResourceCulture.GetString("Form1_msgbox_TitleText"), MessageBoxButtons.OK, MessageBoxIcon.Information);
        }

private void rbEnglish_CheckedChanged(object sender, EventArgs e)
        {
            ResourceCulture.SetCurrentCulture("en-US");
            this.SetResourceCulture();
        }

private void rbChinese_CheckedChanged(object sender, EventArgs e)
        {
            ResourceCulture.SetCurrentCulture("zh-CN");
            this.SetResourceCulture();
        }
    }
}

最终的效果如下图1和图2所示:

sql server 关于表中只增标识问题  C# 实现自动化打开和关闭可执行文件(或 关闭停止与系统交互的可执行文件)  ajaxfileupload插件上传图片功能,用MVC和aspx做后台各写了一个案例  将小写阿拉伯数字转换成大写的汉字, C# WinForm 中英文实现, 国际化实现的简单方法    ASP.NET Core 2 学习笔记(六)ASP.NET Core 2 学习笔记(三)

图1

sql server 关于表中只增标识问题  C# 实现自动化打开和关闭可执行文件(或 关闭停止与系统交互的可执行文件)  ajaxfileupload插件上传图片功能,用MVC和aspx做后台各写了一个案例  将小写阿拉伯数字转换成大写的汉字, C# WinForm 中英文实现, 国际化实现的简单方法    ASP.NET Core 2 学习笔记(六)ASP.NET Core 2 学习笔记(三)

归结起来,要在C#的WinForm中实现国际化,至少需要做好以下几点:
(1)准备所需资源文件(如本文中提到的英文和中文资源文件);
(2)引入命名空间(包括:System.Reflection、System.Resources、System.Threading和System.Globalization);
(3)实例化资源管理器(即ResourceManager);
(4)设置当前进程的语言区域;
(5)通过资源管理器从指定的资源文件中获取所需值。
通过上述的方法即可简单实现国际化。

ASP.NET Core 2 学习笔记(三)

 

之前ASP.NET中使用的HTTP Modules及HTTP Handlers,在ASP.NET Core中已不复存在,取而代之的是Middleware。Middleware除了简化了HTTP Modules/Handlers的使用方式,还带入了Pipeline的概念。
本篇将介绍ASP.NET Core的Middleware概念及用法。

Middleware 概念

ASP.NET Core在Middleware的官方说明中,使用了Pipeline这个名词,意指Middleware像水管一样可以串联在一起,所有的Request及Response都会层层经过这些水管。
用图例可以很容易理解,如下图:

sql server 关于表中只增标识问题  C# 实现自动化打开和关闭可执行文件(或 关闭停止与系统交互的可执行文件)  ajaxfileupload插件上传图片功能,用MVC和aspx做后台各写了一个案例  将小写阿拉伯数字转换成大写的汉字, C# WinForm 中英文实现, 国际化实现的简单方法    ASP.NET Core 2 学习笔记(六)ASP.NET Core 2 学习笔记(三)

App.Use

Middleware的注册方式是在Startup.csConfigureIApplicationBuilder使用Use方法注册。
大部分扩展的Middleware也都是以Use开头的方法注册,例如:

  • UseMvc():MVC的Middleware
  • UseRewriter():URL rewriting的Middleware

一个简单的Middleware 范例。如下:

Startup.cs

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using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using Microsoft.AspNetCore.Builder;
using Microsoft.AspNetCore.Hosting;
using Microsoft.AspNetCore.Http;
using Microsoft.Extensions.DependencyInjection;
 
namespace MyWebsite
{
    public class Startup
    {
        // This method gets called by the runtime. Use this method to add services to the container.
        // For more information on how to configure your application, visit https://go.microsoft.com/fwlink/?LinkID=398940
        public void ConfigureServices(IServiceCollection services)
        {
        }
 
        // This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
        public void Configure(IApplicationBuilder app, IHostingEnvironment env)
        {
            if (env.IsDevelopment())
            {
                app.UseDeveloperExceptionPage();
            }
 
            app.Use(async (context, next) =>
            {
                await context.Response.WriteAsync("First Middleware in. \r\n");
                await next.Invoke();
                await context.Response.WriteAsync("First Middleware out. \r\n");
            });
 
            app.Use(async (context, next) =>
            {
                await context.Response.WriteAsync("Second Middleware in. \r\n");
                await next.Invoke();
                await context.Response.WriteAsync("Second Middleware out. \r\n");
            });
 
            app.Use(async (context, next) =>
            {
                await context.Response.WriteAsync("Third Middleware in. \r\n");
                await next.Invoke();
                await context.Response.WriteAsync("Third Middleware out. \r\n");
            });
 
            app.Run(async (context) =>
            {
                await context.Response.WriteAsync("Hello World! \r\n");
            });
        }
    }
}

用浏览器打开网站任意连结,输出结果: 

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First Middleware in.
Second Middleware in.
Third Middleware in.
Hello World!
Third Middleware out.
Second Middleware out.
First Middleware out.

在Pipeline的概念中,注册顺序是很重要的事情。请求经过的顺序一定是先进后出。

Request 流程如下图:

sql server 关于表中只增标识问题  C# 实现自动化打开和关闭可执行文件(或 关闭停止与系统交互的可执行文件)  ajaxfileupload插件上传图片功能,用MVC和aspx做后台各写了一个案例  将小写阿拉伯数字转换成大写的汉字, C# WinForm 中英文实现, 国际化实现的简单方法    ASP.NET Core 2 学习笔记(六)ASP.NET Core 2 学习笔记(三)

Middleware 也可以作为拦截使用,如下:

Startup.cs

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using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using Microsoft.AspNetCore.Builder;
using Microsoft.AspNetCore.Hosting;
using Microsoft.AspNetCore.Http;
using Microsoft.Extensions.DependencyInjection;
 
namespace MyWebsite
{
    public class Startup
    {
        // This method gets called by the runtime. Use this method to add services to the container.
        // For more information on how to configure your application, visit https://go.microsoft.com/fwlink/?LinkID=398940
        public void ConfigureServices(IServiceCollection services)
        {
        }
 
        // This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
        public void Configure(IApplicationBuilder app, IHostingEnvironment env)
        {
            if (env.IsDevelopment())
            {
                app.UseDeveloperExceptionPage();
            }
 
            app.Use(async (context, next) =>
            {
                await context.Response.WriteAsync("First Middleware in. \r\n");
                await next.Invoke();
                await context.Response.WriteAsync("First Middleware out. \r\n");
            });
 
            app.Use(async (context, next) =>
            {
                await context.Response.WriteAsync("Second Middleware in. \r\n");
 
                // 水管阻塞,封包不往后送
                var condition = false;
                if (condition)
                {
                    await next.Invoke();
                }
                await context.Response.WriteAsync("Second Middleware out. \r\n");
            });
 
            app.Use(async (context, next) =>
            {
                await context.Response.WriteAsync("Third Middleware in. \r\n");
                await next.Invoke();
                await context.Response.WriteAsync("Third Middleware out. \r\n");
            });
 
            app.Run(async (context) =>
            {
                await context.Response.WriteAsync("Hello World! \r\n");
            });
        }
    }
}

输出结果:

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First Middleware in.
Second Middleware in.
Second Middleware out.
First Middleware out.

在Second Middleware 中,因为没有达成条件,所以封包也就不在往后面的水管传送。流程如图:

sql server 关于表中只增标识问题  C# 实现自动化打开和关闭可执行文件(或 关闭停止与系统交互的可执行文件)  ajaxfileupload插件上传图片功能,用MVC和aspx做后台各写了一个案例  将小写阿拉伯数字转换成大写的汉字, C# WinForm 中英文实现, 国际化实现的简单方法    ASP.NET Core 2 学习笔记(六)ASP.NET Core 2 学习笔记(三)

App.Run

Run是Middleware的最后一个行为,以上面图例来说,就是最末端的Action。
它不像Use能串联其他Middleware,但Run还是能完整的使用Request及Response。

App.Map

Map是能用来处理一些简单路由的Middleware,可依照不同的URL指向不同的Run及注册不同的Use
新增一个路由如下:

Startup.cs

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using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using Microsoft.AspNetCore.Builder;
using Microsoft.AspNetCore.Hosting;
using Microsoft.AspNetCore.Http;
using Microsoft.Extensions.DependencyInjection;
 
namespace MyWebsite
{
    public class Startup
    {
        // This method gets called by the runtime. Use this method to add services to the container.
        // For more information on how to configure your application, visit https://go.microsoft.com/fwlink/?LinkID=398940
        public void ConfigureServices(IServiceCollection services)
        {
        }
 
        // This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
        public void Configure(IApplicationBuilder app, IHostingEnvironment env)
        {
            if (env.IsDevelopment())
            {
                app.UseDeveloperExceptionPage();
            }
 
            app.Use(async (context, next) =>
            {
                await context.Response.WriteAsync("First Middleware in. \r\n");
                await next.Invoke();
                await context.Response.WriteAsync("First Middleware out. \r\n");
            });
 
            // app.Use(async (context, next) =>
            // {
            //     await context.Response.WriteAsync("Second Middleware in. \r\n");
 
            //     // 水管阻塞,封包不往后送
            //     var condition = false;
            //     if (condition)
            //     {
            //         await next.Invoke();
            //     }
            //     await context.Response.WriteAsync("Second Middleware out. \r\n");
            // });
 
            app.Map("/second", mapApp =>
            {
                mapApp.Use(async (context, next) =>
                {
                    await context.Response.WriteAsync("Second Middleware in. \r\n");
                    await next.Invoke();
                    await context.Response.WriteAsync("Second Middleware out. \r\n");
                });
                mapApp.Run(async context =>
                {
                    await context.Response.WriteAsync("Second. \r\n");
                });
            });
 
 
            app.Use(async (context, next) =>
            {
                await context.Response.WriteAsync("Third Middleware in. \r\n");
                await next.Invoke();
                await context.Response.WriteAsync("Third Middleware out. \r\n");
            });
 
            app.Run(async (context) =>
            {
                await context.Response.WriteAsync("Hello World! \r\n");
            });
        }
    }
}

开启网站任意连结,会显示:

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First Middleware in.
Third Middleware in.
Hello World!
Third Middleware out.
First Middleware out.

开启网站http://localhost:5000/second,则会显示:

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First Middleware in.
Second Middleware in.
Second.
Second Middleware out.
First Middleware out.

创建Middleware 类

如果Middleware全部都写在Startup.cs,代码将很难维护,所以应该把自定义的Middleware逻辑独立出来。
建立Middleware类不需要额外继承其它类或接口,一般的类即可,例子如下:

FirstMiddleware.cs

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using System.Threading.Tasks;
using Microsoft.AspNetCore.Http;
 
namespace MyWebsite
{
    public class FirstMiddleware
    {
        private readonly RequestDelegate _next;
 
        public FirstMiddleware(RequestDelegate next)
        {
            _next = next;
        }
 
        public async Task Invoke(HttpContext context)
        {
            await context.Response.WriteAsync($"{nameof(FirstMiddleware)} in. \r\n");
 
            await _next(context);
 
            await context.Response.WriteAsync($"{nameof(FirstMiddleware)} out. \r\n");
        }
    }
}

全局注册

Startup.Configure注册Middleware就可以套用到所有的Request。如下:

Startup.cs

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// ...
public class Startup
{
    // ...
    public void Configure(IApplicationBuilder app)
    {
        app.UseMiddleware<FirstMiddleware>();
        // ...
    }
}

局部注册

Middleware 也可以只套用在特定的Controller 或Action。注册方式如下:

Controllers\HomeController.cs

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// ..
[MiddlewareFilter(typeof(FirstMiddleware))]
public class HomeController : Controller
{
    // ...
 
    [MiddlewareFilter(typeof(SecondMiddleware))]
    public IActionResult Index()
    {
        // ...
    }
}

Extensions

大部分扩展的Middleware都会用一个静态方法包装,如:UseMvc()UseRewriter()等。
自定义的Middleware当然也可以透过静态方法包,范例如下:

Extensions\CustomMiddlewareExtensions.cs

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using Microsoft.AspNetCore.Builder;
 
namespace MyWebsite
{
    public static class CustomMiddlewareExtensions
    {
        public static IApplicationBuilder UseFirstMiddleware(this IApplicationBuilder builder)
        {
            return builder.UseMiddleware<FirstMiddleware>();
        }
    }
}

注册Extension Middleware 的方式如下:

Startup.cs

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// ...
public class Startup
{
    // ...
    public void Configure(IApplicationBuilder app)
    {
        app.UseFirstMiddleware();
        // ...
    }
}

参考

ASP.NET Core Middleware Fundamentals
Creating Custom Middleware In ASP.Net Core

老司机发车啦:https://github.com/SnailDev/SnailDev.NETCore2Learning

ASP.NET Core 2 学习笔记(六)

 

ASP.NET Core MVC跟ASP.NET MVC观念是一致的,使用上也没有什么太大的变化。之前的ASP.NET MVC把MVC及Web API的套件分开,但在ASP.NET Core中MVC及Web API用的套件是相同的。

本篇将介绍ASP.NET Core MVC设置方式。

MVC 简介

ASP.NET Core的MVC(Model-View-Controller)架构模式延续ASP.NET MVC,把网站分成三大元件Model、View及Controller,依赖关系如下图:

sql server 关于表中只增标识问题  C# 实现自动化打开和关闭可执行文件(或 关闭停止与系统交互的可执行文件)  ajaxfileupload插件上传图片功能,用MVC和aspx做后台各写了一个案例  将小写阿拉伯数字转换成大写的汉字, C# WinForm 中英文实现, 国际化实现的简单方法    ASP.NET Core 2 学习笔记(六)ASP.NET Core 2 学习笔记(三)

  • Model
    负责数据处理,包含数据存取、业务逻辑、定义数据对象及验证数据。
  • View
    负责UI显示,如HTML、CSS等界面设计配置。
  • Controller
    负责将使用者Requset找到相对应的Model及View,做为控制流程的角色。

在ASP.NET Core中使用MVC或Web API,需要Microsoft.AspNetCore.Mvc套件。

注册MVC 服务

Startup.csConfigureServices加入MVC的服务,并在ConfigureIApplicationBuilder使用UseMvcWithDefaultRoute方法注册MVC预设路由的Middleware。如下:

Startup.cs

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// ...
public class Startup
{
    public void ConfigureServices(IServiceCollection services)
    {
        services.AddMvc();
    }
 
    public void Configure(IApplicationBuilder app)
    {
        app.UseMvcWithDefaultRoute();
    }
}
  • UseMvcWithDefaultRoute

这个是ASP.NET Core的预设路由,会将Request来的URL找到对应的Controller及Action。

MVC 示例

Model

建立一个简单的Model 用于Controller 跟View 互动。

Models\UserModel.cs

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namespace MyWebsite.Models
{
    public class UserModel
    {
        // 名称
        public string Name { getset; } = "SnailDev";
    }
}

Controller

在项目目录下建立一个Controllers文件夹,把Controller都放这个目录。
过去ASP.NET把MVC及Web API用的Controller分为ControllerApiController,现在ASP.NET Core把两者合一,不再区分ApiController
所以要建立一个类,名称后缀Controller即可,如下:

Controllers\HomeController.cs

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namespace MyWebsite.Controllers
{
    public class HomeController
    {
        public string Index()
        {
            return "this is homecontroller index action";
        }
    }
}

但要让Controller跟View互动,还是需要继承Controller比较方便,如下:

Controllers\HomeController.cs

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using Microsoft.AspNetCore.Mvc;
using MyWebsite.Models;
 
namespace MyWebsite.Controllers
{
    public class HomeController : Controller
    {
        public IActionResult Index()
        {
            var user = new UserModel();
            return View(model: user);
        }
    }
}

IActionResult回传的方式可以有很多种,通过继承Controller后,就可以使用Controller的方法:

  • View
    以上例来说,通过回传View方法,可以找到该Controller & Action对应的*.cshtml,并且把UserModel传给View使用。
  • HTTP Status Code
    响应包含HTTP Status。常用的响应有OkBadRequestNotFound等。
    例如:return BadRequest("Internal Server Error"),会响应HTTP Status 400及Internal Server Error字串。
  • Redirect
    可以把Request转给其他的Action或URL。转向的方法有RedirectLocalRedirectRedirectToActionRedirectToRoute等。
    例如:return RedirectToAction("Login", "Authentication"),就会把Request转向到AuthenticationController的Login()。
  • Formatted Response
    响应时指定Content-Type。Web API的回传通常都用这种方式,序列化对象顺便标注Content-Type。
    例如:return Json(user),会将对象序列化成JSON字串,并在HTTP Headers带上Content-Type=application/json。

View

View跟Controller有相互的对应关系,预设在Controller使用View方法回传结果,会从以下目录寻找对应的*.cshtml

  1. Views\{ControllerName}\{ActionName}.cshtml
    寻找与Controller同名的子目录,再找到与Action同名的*.cshtml
    如上例HomeController.Index(),就会找项目目录下的Views\Home\Index.cshtml文件。
  2. Views\Shared\{ActionName}.cshtml
    如果Controller同名的子目录,找不到Action同名的*.cshtml。就会到Shared目录找。如上例HomeController.Index(),就会找项目目录下的Views\Shared\Index.cshtml文件

Views\Home\Index.cshtml

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@model MyWebsite.Models.UserModel
 
Hello~ 我是 @Model.Name

*.cshtml@model绑定Model的型别,才可以使用@Model取得Controller传入的对象。

示例结果

sql server 关于表中只增标识问题  C# 实现自动化打开和关闭可执行文件(或 关闭停止与系统交互的可执行文件)  ajaxfileupload插件上传图片功能,用MVC和aspx做后台各写了一个案例  将小写阿拉伯数字转换成大写的汉字, C# WinForm 中英文实现, 国际化实现的简单方法    ASP.NET Core 2 学习笔记(六)ASP.NET Core 2 学习笔记(三)

数据流动图如下:

sql server 关于表中只增标识问题  C# 实现自动化打开和关闭可执行文件(或 关闭停止与系统交互的可执行文件)  ajaxfileupload插件上传图片功能,用MVC和aspx做后台各写了一个案例  将小写阿拉伯数字转换成大写的汉字, C# WinForm 中英文实现, 国际化实现的简单方法    ASP.NET Core 2 学习笔记(六)ASP.NET Core 2 学习笔记(三)

参考

Overview of ASP.NET Core MVC
ASP.NET Core - Setup MVC

老司机发车啦:https://github.com/SnailDev/SnailDev.NETCore2Learning

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