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请问高手,datagrid不能显示数据啊

www.MyException.Cn  网友分享于:2013-12-24  浏览:24次
请教高手,datagrid不能显示数据啊!
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;
public partial class _Default : System.Web.UI.Page 
{
  protected void Page_Load(object sender, EventArgs e)
  {
  BindData();
  }
  protected void BindData()
  {
  string str = "server=localhost;database=Xkk;user=xiaopang;pwd=123456";
  SqlConnection conn = new SqlConnection(str);
  SqlDataAdapter ad = new SqlDataAdapter("select * from Student", conn);
  DataSet myds = new DataSet();
  ad.Fill(myds, "Student");
  DataGrid1.DataSource = myds.Tables["Student"].DefaultView;
  //DataGrid1.DataBind();
  }
  protected void DataGrid1_EditCommand(object source, DataGridCommandEventArgs e)
  {
  //编辑
  DataGrid1.EditItemIndex = e.Item.ItemIndex;
  BindData();
  }
  protected void DataGrid1_CancelCommand(object source, DataGridCommandEventArgs e)
  {
  //取消
  DataGrid1.EditItemIndex = -1;
  BindData();
  }
  //protected void DataGrid1_DeleteCommand(object source, DataGridCommandEventArgs e)
  //{
  // //删除
  // if (DataGrid1.Items.Count == 1)
  // {
  // if (DataGrid1.CurrentPageIndex != 0)
  // DataGrid1.CurrentPageIndex = DataGrid1.CurrentPageIndex - 1;
  // }
  // string strSql = "delete from Student where StuNo="+e.Item.Cells[0].Text+"";
  // ExecuteSql(strSql);
  // BindData();
  //}
  protected void DataGrid1_PageIndexChanged(object source, DataGridPageChangedEventArgs e)
  {
  //分页
  DataGrid1.CurrentPageIndex = e.NewPageIndex;
  BindData();
  }
  protected void ExecuteSql(string strSql)
  {
  try
  {
  string strconn ="server=localhost;database=Xkk;user=xiaopang;pwd=123456";
SqlConnection conn1 =new SqlConnection(strconn);
SqlCommand com = new SqlCommand(strSql,conn1);
conn1.Open();
com.ExecuteNonQuery();
conn1.Close();
  }
  catch(Exception e)
  {
  Response.Write("<script language=javascript>alert('"+e.Message+"')</script>");
  }
  }
   
}
  数据库中有数据,运行也能,没报错,但是,没数据!!!


------解决方案--------------------
protected void BindData() 

string str = "server=localhost;database=Xkk;user=xiaopang;pwd=123456"; 
SqlConnection conn = new SqlConnection(str); 
SqlDataAdapter ad = new SqlDataAdapter("select * from Student", conn); 
DataSet myds = new DataSet(); 
ad.Fill(myds, "Student"); 
DataGrid1.DataSource = myds.Tables["Student"].DefaultView; 
//DataGrid1.DataBind(); //给注释掉了
}
------解决方案--------------------
DataGrid1.DataBind();不应该注释··

另外
C# code

  protected void Page_Load(object sender, EventArgs e) 
    { 
      if(!IsPostBack)
        {
          BindData(); 
        }
    }

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