c# - 从 CreatedUser 事件中取消 CreateUserWizard

Question

我正在使用 CreateUserWizard 和自定义 MembershipProvider 将用户添加到我们的数据库中。目前用户已成功添加到数据库中，我正在使用 CreatedUser 事件来存储在表单上捕获的附加信息。这很好用；但是，我希望能够处理更新期间的任何错误情况。

如果附加详细信息的更新失败，有没有办法重新显示带有错误的 CreateUserWizard 表单？

这是我在 CreatedUser 事件中的代码:

protected void RegisterUserWizard_CreatedUser(object sender, EventArgs e)
{
    try
    {
        // Try to update the customer table with the additional information
        using (OrderEntities entities = new OrderEntities())
        {
            // Read in all the values from the form
            TextBox custTitle = (TextBox)RegisterUserWizard.CreateUserStep.ContentTemplateContainer.FindControl("CustomerTitle");
            TextBox custName = (TextBox)RegisterUserWizard.CreateUserStep.ContentTemplateContainer.FindControl("CustomerName");
            TextBox custSurname = (TextBox)RegisterUserWizard.CreateUserStep.ContentTemplateContainer.FindControl("CustomerSurname");
            TextBox custAddress1 = (TextBox)RegisterUserWizard.CreateUserStep.ContentTemplateContainer.FindControl("CustomerAddressLine1");
            TextBox custAddress2 = (TextBox)RegisterUserWizard.CreateUserStep.ContentTemplateContainer.FindControl("CustomerAddressLine2");
            TextBox custAddress3 = (TextBox)RegisterUserWizard.CreateUserStep.ContentTemplateContainer.FindControl("CustomerAddressLine3");
            TextBox custCity = (TextBox)RegisterUserWizard.CreateUserStep.ContentTemplateContainer.FindControl("CustomerCity");
            TextBox custCounty = (TextBox)RegisterUserWizard.CreateUserStep.ContentTemplateContainer.FindControl("CustomerCounty");
            TextBox custPostcode = (TextBox)RegisterUserWizard.CreateUserStep.ContentTemplateContainer.FindControl("CustomerPostcode");
            DropDownList custCountry = (DropDownList)RegisterUserWizard.CreateUserStep.ContentTemplateContainer.FindControl("CustomerCountry");

            Customer custInfo = entities.Customers.Where(c => c.UserName == RegisterUserWizard.UserName).FirstOrDefault();

            if (custInfo != null)
            {
                custInfo.Email = RegisterUserWizard.Email;
                custInfo.Password = RegisterUserWizard.Password;
                custInfo.Title = custTitle.Text;
                custInfo.Firstname = custName.Text;
                custInfo.Surname = custSurname.Text;
                custInfo.AddressLine1 = custAddress1.Text;
                custInfo.AddressLine2 = custAddress2.Text;
                custInfo.AddressLine3 = custAddress3.Text;
                custInfo.City = custCity.Text;
                custInfo.County = custCounty.Text;
                custInfo.Postcode = custPostcode.Text;
                custInfo.CountryID = custCountry.SelectedValue;
                custInfo.CreatedDate = DateTime.Now;

                entities.SaveChanges();

                FormsAuthentication.SetAuthCookie(RegisterUserWizard.UserName, false);

                // Redirect user back to calling page
                string continueUrl = RegisterUserWizard.ContinueDestinationPageUrl;
                if (String.IsNullOrEmpty(continueUrl))
                {
                    continueUrl = "~/";
                }
                Response.Redirect(continueUrl);

            }
            else
            {
                // Redisplay CreateUserWizard showing error message
            }
        }
    }
    catch
    {
        // Redisplay CreateUserWizard showing error message
    }
}

提前致谢

Answer 1

如果使用内容模板添加 ID 为 ErrorMessage 的文本控件，则可以显示来自 CreateUserWizard 控件的错误。

<asp:Literal runat="server" EnableViewState="false" ID="ErrorMessage"></asp:Literal>