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

public partial class ChangePWD : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
        if (!Page.IsPostBack)
        {
           
            //LoadUserName();
        }

    }



    #region

     /// <summary>
     ///加载所有分厂
     /// </summary>
     public void LoadUserName()
     {
         DataBaseHelper DBHelper = new DataBaseHelper();
         DataSet ds =DBHelper.ExecuteDateSet("select * from dbo.UserDate order by DT_SC");
         if (ds.Tables[0].Rows.Count != 0)
         {
             CommonClass ComClass = new CommonClass();
             ComClass.GetDDL(ddlUserName, ds, "UserName", "UserName", true);
             lblUserName.Text = ds.Tables[0].Rows[0]["UserName"].ToString();


         }
         ds.Clear();

     }

     #endregion


错误    1    无法使用实例引用来访问成员“DataBaseHelper.ExecuteDateSet(string)”；请改用类型名来限定它    F:\学习资料\德通电气有限公司生产管理软件\源码\ProjectManage\ChangePWD.aspx.cs    37    22    F:\...\源码\
错误    2    当前上下文中不存在名称“ddlUserName”    F:\学习资料\德通电气有限公司生产管理软件\源码\ProjectManage\ChangePWD.aspx.cs    41    30    F:\...\源码\

错误1：让你不要用DataBaseHelper的实例引用DBHelper去调用ExecuteDateSet方法，而应该用类名DataBaseHelper去调用该方法，正如提示中给出的一样，应该这样写DataBaseHelper.ExecuteDateSet("select * from dbo.UserDate order by DT_SC")
错误2：ComClass.GetDDL(ddlUserName, ds, "UserName", "UserName", true);这句中的ddlUserName是个什么东西，编译器不知道，当然，我也不知道，您知道吗