App_Code/Bind.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.OleDb;
/// <summary>
/// Bind 的摘要说明
/// </summary>
public class Bind
{
    DB dbobj = new DB();
	public Bind()
	{
		//
		// TODO: 在此处添加构造函数逻辑
		//
	}

    public void DLBind(DataList dlName, string sql)
    {


        OleDbConnection con = dbobj.GetConnection();
        con.Open();
        OleDbDataAdapter da = new OleDbDataAdapter(sql, con);
        DataSet ds = new DataSet();
        da.Fill(ds, "table");
        dlName.DataSource = ds.Tables["table"].DefaultView;
        dlName.DataBind();
        con.Close();
    }
    public void DDLBind(DropDownList ddlname, string sql)
    {
        OleDbConnection con = dbobj.GetConnection();
        con.Open();
        OleDbDataAdapter da = new OleDbDataAdapter(sql, con);
        DataSet ds = new DataSet();
        da.Fill(ds, "table");
        ddlname.DataSource = ds.Tables["table"].DefaultView;
        ddlname.DataValueField = "linkss";
        ddlname.DataTextField = "namess";
        ddlname.DataBind();
        con.Close();
    }

    public DataTable ExecuteSqlRead(string SqlString)
    {
        OleDbCommand SqlCmd = new OleDbCommand();
        SqlCmd.Connection = dbobj.GetConnection();
        SqlCmd.CommandText = SqlString;
        SqlCmd.CommandType = CommandType.Text;
        OleDbDataAdapter SqlAd = new OleDbDataAdapter(SqlCmd);
        DataSet Rs = new DataSet();
        SqlAd.Fill(Rs);
        return Rs.Tables[0];