App_Code/DBExec.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;

/// <summary>
/// DBExec 的摘要说明
/// </summary>
public class DBExec
{
	public DBExec()
	{
		//
		// TODO: 在此处添加构造函数逻辑
		//
	}
    public SqlDataReader execSqlQry(string strSql)
    {
        SqlCommand cmd;
        cmd = new SqlCommand();
        cmd.Connection = new DBCon().getCon();
        string sqlStr = strSql;
        cmd.CommandText = sqlStr;
        SqlDataReader dr = cmd.ExecuteReader();

        return dr;
    }
    public void execSqlNoQry(string strSql)
    {
        SqlCommand cmd;
        cmd = new SqlCommand();
        cmd.Connection = new DBCon().getCon();
        cmd.CommandText = strSql;

        cmd.ExecuteNonQuery();

    }
    public DataView getView(string strSql)
    {
        DataSet ds;
        SqlDataAdapter da;
        ds = new DataSet();
        da = new SqlDataAdapter();

        SqlCommand cmd;
        cmd = new SqlCommand();
        cmd.Connection = new DBCon().getCon();
        string sqlStr = strSql;
        cmd.CommandText = sqlStr;

        da.SelectCommand = cmd;

        da.Fill(ds);