protected void txtEmailID_TextChanged(object sender, EventArgs e) { try { if (!string.IsNullOrEmpty(txtEmailid.Text.ToString())) { CanvasBizProcess canvBiz = new CanvasBizProcess(); canvBiz = new CanvasBizProcess(); if (txtEmailid.Text.Contains(">") || txtEmailid.Text.Contains("<") || txtEmailid.Text.Contains("'") || txtEmailid.Text.Contains("--") || txtEmailid.Text.Contains("%")) { txtEmailid.Text = ""; } else { int result = canvBiz.CheckUserEmail(txtEmailid.Text.TrimStart(' ').TrimEnd(' ')); if (result == 0) { txtOrganization.Focus(); } else { string alertScript = "alert('This e-mail ID already exists!');"; ScriptManager.RegisterStartupScript(this, GetType(), "Key", alertScript, true); txtEmailid.Focus(); txtEmailid.Text = ""; } } } } catch (Exception ex) { objCommonUtil.SendErrorMail(ex.Message, ex.StackTrace, System.Reflection.MethodBase.GetCurrentMethod().Name.ToString(), System.Reflection.MethodBase.GetCurrentMethod().DeclaringType.ToString(), SessionData.Customer.CustomerID); } }