<appSettings>
<add key="connectionString" value="server=WIN-V30CUN3PJB1\SQLEXPRESS; database=yanirui; user=sa; pwd=FRP+757721728;"/>
</appSettings> //数据库连接对象类源码 public class Database
{
/// <summary>
/// 连接数据库
/// </summary>
/// <returns>连接对象</returns>
public SqlConnection GetConnection()
{
return new SqlConnection(ConfigurationManager.AppSettings["connectionString"]);
}
/// <summary>
/// 执行管理命令
/// </summary>
/// <param name="command">命令对象</param>
public void ExecuteNonQuery(SqlCommand command)
{
try
{
if (command.Connection.State != ConnectionState.Open)
{
command.Connection.Open();
}
command.ExecuteNonQuery();
}
catch (Exception e)
{
throw new Exception(e.Message);
}
finally
{
if (command.Connection.State == ConnectionState.Open)
{
command.Connection.Close();
}
}
}
/// <summary>
/// 执行单行单列查询命令
/// </summary>
/// <param name="command">命令对象</param>
/// <returns>单行单列查询结果</returns>
public string ExecuteScalar(SqlCommand command)
{
try
{
if (command.Connection.State != ConnectionState.Open)
{
command.Connection.Open();
}
return command.ExecuteScalar().ToString();
}
catch (Exception e)
{
throw new Exception(e.Message);
}
finally
{
if (command.Connection.State == ConnectionState.Open)
{
command.Connection.Close();
}
}
}
/// <summary>
/// 执行单行查询命令
/// </summary>
/// <param name="command">命令对象</param>
/// <returns>单行查询结果</returns>
public SqlDataReader ExecuteReader(SqlCommand command)
{
try
{
if (command.Connection.State != ConnectionState.Open)
{
command.Connection.Open();
}
return command.ExecuteReader();
}
catch (Exception e)
{
throw new Exception(e.Message);
}
finally
{
if (command.Connection.State == ConnectionState.Open)
{
command.Connection.Close();
}
}
}
/// <summary>
/// 查询表
/// </summary>
/// <param name="command">命令</param>
/// <param name="tableName">表名称</param>
/// <returns>表</returns>
public DataTable GetTable(SqlCommand command, string tableName)
{
try
{
if (command.Connection == null)
{
command.Connection = GetConnection();
}
if (command.Connection.State != ConnectionState.Open)
{
command.Connection.Open();
}
DataTable dt = new DataTable();
SqlDataAdapter adapter = new SqlDataAdapter(command);
adapter.Fill(dt);
return dt;
}
catch (Exception e)
{
throw new Exception(e.Message);
}
}
/// <summary>
/// 查询存储过程
/// </summary>
/// <param name="procName">存储过程名称</param>
/// <returns>命令</returns>
public SqlCommand GetCommand(string procName)
{
using (SqlConnection connection = GetConnection())
{
using (SqlCommand command = new SqlCommand())
{
connection.Open();
command.CommandText = procName;
command.CommandType = CommandType.StoredProcedure;
return command;
}
}
}
} //数据管理类 public class ProductManager
{
Database db = new Database();
/// <summary>
/// 获取产品信息列表
/// </summary>
/// <returns></returns>
public DataTable GetProductInfoList()
{
return db.GetTable(db.GetCommand("proc_GetProductInfoList"),
"ProductInfoTable");
//DataList dl = new DataList();
//dl.DataSource = dt;
//dl.DataKeyField = dt.Columns[0].ToString();
//dl.DataBind();
}
/// <summary>
/// 获取产品信息
/// </summary>
/// <returns></returns>
public object GetProductInfo(int productId)
{
SqlDataReader reader = db.ExecuteReader(db.GetCommand("proc_GetProductInfo"));
if (reader.Read())
{
return reader.GetValue(productId);
}
return null;
}
/// <summary>
/// 添加产品信息
/// </summary>
public void AddProductInfo()
{
db.ExecuteNonQuery(db.GetCommand("proc_AddProductInfo"));
}
/// <summary>
/// 更新产品信息列表
/// </summary>
public void UpdateProductInfoList()
{
db.ExecuteNonQuery(db.GetCommand("proc_UpdateProductInfoList"));
}
/// <summary>
/// 编辑产品信息
/// </summary>
public void EditProductInfo()
{
db.ExecuteNonQuery(db.GetCommand("proc_EditProductInfo"));
}
/// <summary>
/// 删除产品信息
/// </summary>
public void DeleteProductInfo()
{
db.ExecuteNonQuery(db.GetCommand("proc_DeleteProductInfo"));
}
/// <summary>
/// 清空产品信息列表
/// </summary>
public void ClearProductInfoList()
{
db.ExecuteNonQuery(db.GetCommand("proc_ClearProductInfoList"));
}
} //调用数据绑定 public partial class productlist : System.Web.UI.Page
{
public ProductManager pm;
protected void Page_Load(object sender, EventArgs e)
{
pm = new ProductManager();
DataTable dt = pm.GetProductInfoList();
productDataList.DataSource = dt;
productDataList.DataKeyField = dt.Columns[0].ToString();
productDataList.DataBind();
}
} <!--数据显示--> <div class="productbox">
<asp:DataList ID="productDataList" runat="server" Width="500"
BorderColor="Red" BorderWidth="1" Height="500" DataSourceID="" DataKeyField="productId">
<HeaderTemplate>
<ul>
<li>产品名称</li>
<li>产品图片</li>
<li>产品价格</li>
</ul>
</HeaderTemplate>
<ItemTemplate>
<table>
<tr>
<td style="border:1px inset red; width:50px; height:50px;">
产品名称：<%# Eval("productName") %>
产品图片：<img src="<%# Eval("productImgPath") %>" />
产品价格：<%# Eval("productPrice") %>
</td>
</tr>
</table>
</ItemTemplate>
<EditItemTemplate>
<table>
<tr>
<td style="border:1px inset red; width:50px; height:50px;">
产品名称：<%# Eval("productName") %>
产品图片：<img src="<%# Eval("productImgPath") %>" />
产品价格：<%# Eval("productPrice") %>
</td>
</tr>
</table>
</EditItemTemplate>
</asp:DataList>
</div>