protected void Button2_Click(object sender, EventArgs e) { dataclass e1 = new dataclass(); e1.item_update(TextBox1.Text, TextBox2.Text); GridView1.DataSource = e1.getitem(); GridView1.DataBind(); TextBox1.Text = ""; TextBox2.Text = ""; Button1.Visible = true; Button2.Visible = false; Button3.Visible = false; }