public void btnFind_Click(object sender, System.EventArgs e) { try { Nav1.Feedback.Text = String.Empty; UserM user = null; if (txtUserName.Text != null && !txtUserName.Text.Trim().Equals(String.Empty)) { user = UserM.LoadByUserName(txtUserName.Text.Trim()); } else if (txtUniversityIdentifier.Text != null && !txtUniversityIdentifier.Text.Trim().Equals(String.Empty)) { user = UserM.LoadByUniversityID(txtUniversityIdentifier.Text.Trim()); } else if (txtEMailAddress != null && !txtEMailAddress.Text.Trim().Equals(String.Empty)) { user = UserM.LoadByEmail(txtEMailAddress.Text.Trim()); } if (user != null && user.IsValid) { //Populate result Response.Redirect("AddEditUser.aspx?CourseID=" + courseId + "&UserID=" + user.UserID, false); } else { Nav1.Feedback.Text = SharedSupport.GetLocalizedString("AddEditUser_NoUserRecord") + Server.HtmlEncode(txtUserName.Text.ToString()); clearFields(); } } catch (Exception ex) { Nav1.Feedback.Text = ex.Message.ToString(); btnUpdate.Visible = false; } }