protected void Button1_Click(object sender, EventArgs e) { DataSet i; try { b.CustomerName = TextBox1.Text.Trim(); b.EMail = TextBox3.Text.Trim(); b.ContactNo = TextBox4.Text.Trim(); b.QueryText = TextBox5.Text.Trim(); i = b.In_Dat(); } catch (Exception ex) { throw new ArgumentException(ex.Message); } if (i != null) { Response.Redirect("~/default.aspx?qrid=" + i.Tables[0].Rows[0][0].ToString()); } }