How do I get the ID of a record if I put a button in the GridView?

oppressor

Add the following code to the GridView

<asp: TemplateField>
<ItemStyle HorizontalAlign = "Center" Width = "12%" />
<ItemTemplate>
<asp: LinkButton ID = "Link1" OnCommand = "Link1_clink" runat = "server" Text = "Set as cover"> </ asp: LinkButton>
</ ItemTemplate>
</ asp: TemplateField>

Backstage is
 protected void Link1_clink (object sender, EventArgs e)
    {
     }

So how do I get the ID of the record that clicked this button in the background ??

sulfuresser

Change to this:

<asp:LinkButton ID="Link1" CommandName="setcmd" CommandArgument='Bind the record ID here' runat="server" Text="Set as cover"></asp:LinkButton>

then
Written in GrivView's RowCommand incident
  if(e.CommandName=="setcmd")
{
  int Id=Convert.ToInt32(e.CommandArgument) //Get the ID of the record
　//Other codes
}

terrysx

Positive Solutions Upstairs
I just don't know how to pass 2 parameters with CommandArgument~~

About DataKeys usage
<asp:GridView ID="GV" DataKeyNames="ID,Name"....
<Columns>
  <asp:BoundField DataField="ID".../>
  <asp:BoundField DataField="ID".../>
  ...
</Columns>
</asp:GridView>

Code behind
DataKey DataKey = GV.DataKeys[i]; //i is the number of rows
DataKey[0] //ID
DataKey[1] //Name