protected void assistantGridView_RowUpdating(object sender, GridViewUpdateEventArgs e) { int r = e.RowIndex; TextBox t1 = (TextBox)assistantGridView.Rows[r].FindControl("idTextBox"); TextBox t2 = (TextBox)assistantGridView.Rows[r].FindControl("nameTextBox"); TextBox t3 = (TextBox)assistantGridView.Rows[r].FindControl("typeTextBox"); TextBox t4 = (TextBox)assistantGridView.Rows[r].FindControl("contactTextBox"); bool flag = aManager.Update(t1.Text, t2.Text, t3.Text, t4.Text); if (flag == true) { msgLabel.Text = "Update Successfully"; assistantGridView.DataSource = aManager.ShowAllAssistants(); assistantGridView.EditIndex = -1; assistantGridView.DataBind(); } else { msgLabel.Text = "Not Updated, Sorry!!!!!"; } }