CommandArgument in the Gridview

Question

I have a gridview like this.

Answer 1

try like this

 <asp:GridView ID="grd1" runat="Server" width="500px" AutoGenerateColumns="false" DataKeyNames="StateID" OnRowEditing="grd1_RowEditing">
  <Columns>
       <asp:TemplateField>
              <ItemTemplate>
                      <asp:LinkButton ID="btnDelete" runat="server" CommandArgument='<%#Eval("StateID")%>' OnCommand="lnkDelete" Text="Delete">
                      </asp:LinkButton>
               </ItemTemplate>
        </asp:TemplateField>
   </Columns>

 protected void lnkDelete(Object sender, CommandEventArgs e)
 {
    int iStID=int32.Parse(e.CommandArgument.ToString());
 }

 //iStID has the DataKey value which you can use.