工作需要做一个小工具，捡起之前的C# Winform
1、正则替换
string strText="xxxxx";
Regex reg = new Regex(@"\n- \d+ - ");
strText = reg.Replace(strText, "");
2、Json格式化
public static string ConvertJsonString(string str)
{
//格式化json字符串
JsonSerializer serializer = new JsonSerializer();
TextReader tr = new StringReader(str);
JsonTextReader jtr = new JsonTextReader(tr);
object obj = serializer.Deserialize(jtr);
if (obj != null)
{
StringWriter textWriter = new StringWriter();
JsonTextWriter jsonWriter = new JsonTextWriter(textWriter)
{
Formatting = Formatting.Indented,
Indentation = 4,
IndentChar = ‘ ‘
};
serializer.Serialize(jsonWriter, obj);
return textWriter.ToString();
}
else
{
return str;
}
}
3、自定义ListBoxItem
[Serializable]
public class MyListBoxItem
{
public override string ToString()
{
if (IsGroup) return "" + ItemText + "";
else return " " + ItemText;
return ItemText;
}
public bool IsGroup { get; set; }
public string ItemText { get; set; }
}
4、用到的Mqtt组件
M2MqttDotnetCore
5、序列化，反序列化
private List<MyListBoxItem> LoadTopicList(string fileName)
{
try
{
string strParent = System.IO.Directory.GetParent(System.Windows.Forms.Application.ExecutablePath).FullName;
string strFilePath = strParent + "\\config\\" + fileName + ".data";
if (!File.Exists(strFilePath)) return new List<MyListBoxItem>();
//反序列化
FileStream fs = new FileStream(strFilePath, FileMode.Open);
BinaryFormatter bf = new BinaryFormatter();
List<MyListBoxItem> p = bf.Deserialize(fs) as List<MyListBoxItem>;
fs.Close();
return p;
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
return new List<MyListBoxItem>();
}
private void SaveTopicList(string fileName, List<MyListBoxItem> list)
{
try
{
string strParent = System.IO.Directory.GetParent(System.Windows.Forms.Application.ExecutablePath).FullName;
//序列化
FileStream fs = new FileStream(strParent + "\\config\\" + fileName + ".data", FileMode.OpenOrCreate);
BinaryFormatter bf = new BinaryFormatter();
bf.Serialize(fs, list);
fs.Close();
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
}