DataSource和DataSourceID都在'GridView1'上定义。删除一个定义。“这是什么意思

问题描述

你好朋友，

我用gridldatasource绑定了gridview但是无论何时执行我的程序它都显示以下错误：



两者DataSource和DataSourceID在'GridView1'上定义。删除一个定义。



现在如何解决这个错误????????

Hello friends,
I have bind the gridview with sqldatasource but whenever is execute my program it show following error:

"Both DataSource and DataSourceID are defined on 'GridView1'. Remove one definition."

Now how to solve this error????????

推荐答案

<asp:gridview id="cartData" runat="server" autogeneratecolumns="False" 
DataSourceID="Datasource1">


//you have to make it like this

<asp:gridview id="cartData" runat="server" autogeneratecolumns="False">

3）如果您使用设计端绑定到网格，则必须删除c＃代码以绑定网格。





因为你只需要使用一种biding方法，所以两者同时是不允许的..

3) if you use a design side binding to your grid then you have to remove the c# code to bind the grid.


Because you have to use only one method of biding, both at a same time is not permissible..

public partial class _Default : System.Web.UI.Page 
{
    SqlConnection con = new SqlConnection("Data Source=.\\SQLEXPRESS;AttachDbFilename=|DataDirectory|\\Database.mdf;Integrated Security=True;User Instance=True");
    protected void Page_Load(object sender, EventArgs e)
    {
        string str = "select * from student";
        SqlDataAdapter adp = new SqlDataAdapter(str, con);
        DataSet set1 = new DataSet();
        adp.Fill(set1);
        GridView1.DataSource = set1.Tables[0];
        GridView1.DataBind();
}
}

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