在Button1_Click上，需要从选定的DataKey中获取值（用户在gridview中按Select并突出显示行）

Question

This is kiling me. On Button1_Click I need to get the value from selected DataKey (User presses Select in gridview and highlights row)..Can anyone help? Thank You..

    protected void Button1_Click(object sender, EventArgs e)
   {      
    string id = GridView1.SelectedDataKey.Value.ToString(); 
    Label1.Text = id;
   }

Answer 1

You haven't mentioned what's not working, do you get any errors?

To retrieve the SelectedDataKey you have to tell the GridView what's the primary key column of your datasource via it's property DataKeyNames . You could also use the GridView's SelectedValue property.

If all does not work, you should provide source code. Maybe you are binding the GridView on every postback.