Got some error

Question

LinkButton lnkRemove = (LinkButton)sender;

           

            SqlCommand cmd = new SqlCommand();

            cmd.CommandType = CommandType.Text;

            cmd.CommandText = "delete from  Catwhere " +

            "ID=@ID;" +

             "select * from Cat";

            cmd.Parameters.Add("@ID", SqlDbType.VarChar).Value

                = lnkRemove.CommandArgument;

            GridView1.DataSource = ds.Tables[0];

            GridView1.DataBind();

I can can delete any thing buy no error come out, I want to delete item from gridview that the user click