DemoWebUI/App_Code/baseClass.cs

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using System;
using System.Data;
using System.Configuration;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.Data.SqlClient;
using System.Data.SqlClient;

/// <summary>
/// baseClass 的摘要说明
/// </summary>
public class baseClass
{
	public baseClass()
	{
		
	}
    //================数据库连接========================================
    public static SqlConnection GetCon()
    {
        string conn_str = ConfigurationManager.ConnectionStrings["ConnString"].ConnectionString;

        SqlConnection conn = new SqlConnection(conn_str); 
        return conn; 
    }
    //================数据绑定=========================================
    public static void BindDG(GridView dg, string id, string strSql, string Tname)
    {
        
        SqlConnection conn = GetCon();
        SqlDataAdapter sda = new SqlDataAdapter(strSql, conn);
        DataSet ds = new DataSet();
        sda.Fill(ds, Tname);
        dg.DataSource = ds.Tables[Tname];
        dg.DataKeyNames = new string[] { id };
        dg.DataBind();
    }
    public static void ExecuteSql(string sqlStr)
    {
       
            SqlConnection conn = baseClass.GetCon();
            conn.Open();
            SqlCommand cmd = new SqlCommand(sqlStr,conn);
            cmd.CommandType = CommandType.Text;
            cmd.CommandText = sqlStr;
            cmd.ExecuteNonQuery();
      
    }
    //================数据操作=========================================
    public static void OperateData(string strsql)
    {
        SqlConnection conn = GetCon();
        conn.Open();
        SqlCommand cmd = new SqlCommand(strsql, conn);
        cmd.ExecuteNonQuery();
        conn.Close();