Question

我正在编写一个简单的MVC应用程序，其中我使用表单来放置一些数据，在我提交表单后，如果特定条件是false我想再次显示表单，否则我会显示另一页。当条件为假时，我做ReturnToAction("Form");并且它完美地工作，但是，当条件为真且我RedirectToAction("MyPage");时，我仍然看到表单，即使与表单提交相关的操作已经执行。我错过了什么？谢谢这是我的控制器

public class HomeController : Controller
{
    private static bool condition = false;

    public ActionResult Form()
    {
        return View();
    }

    [HttpPost]
    public ActionResult CheckCondition(FormCollection form)
    {

        string username = form["txtUsername"];

        condidion = true;            

        return RedirectToAction("MyPage");
    }

    public ActionResult MyPage()
    {

        if (!condition)
        {

            return RedirectToAction("Form");
        }
        else 
        {

            return RedirectToAction("MyPage");

        }

    }

这是你的Form.aspx：

<%@ Page Language="C#" Inherits="System.Web.Mvc.ViewPage" %>

<!DOCTYPE html>

<html>
<head runat="server">
    <title>Form</title>        
</head>
<body>
    <form runat="server" method="post">
     <ext:ResourceManager runat="server" />

   <ext:Viewport runat="server" Layout="CenterLayout"> 
       <Items>
    <ext:FormPanel runat="server" id="Form" Url="/Home/CheckCondition"
        Width="500"
        Height="500"
        Layout="CenterLayout"
        >
        
        <Items>                   
            <ext:Window ID="Window1"
                        runat="server"
                        Closable="false"
                        Resizable="false"
                        Height="200"
                        Icon="Lock"
                        Title="Dashboard Login"
                        Draggable="false"
                        Width="350"
                        Modal="true"
                        BodyPadding="5"                                               
                        Layout="FormLayout"                        
                >
                <Items>
                    <ext:TextField ID="txtUsername"
                                   runat="server"
                                   FieldLabel="Username"
                                   AllowBlank="false"
                                   BlankText="Your username is required."
                                   Text="Demo" />
                    <ext:TextField ID="txtPassword"
                                   runat="server"
                                   InputType="Password"
                                   FieldLabel="Password"
                                   AllowBlank="false"
                                   BlankText="Your password is required."
                                   Text="Demo" />
                </Items>
                <Buttons>
                    <ext:Button ID="btnLogin" runat="server" Text="Login" Icon="Accept">
                        <Listeners>
                            <Click Handler="
                                   if (!#{txtUsername}.validate() || !#{txtPassword}.validate()) {
                                   Ext.Msg.alert('Error','The Username and Password fields are both required');
                                // return false to prevent the btnLogin_Click Ajax Click event from firing.
                            return false;
                            } else {
                            #{Form}.submit();
                            }" />
                        </Listeners>                        
                    </ext:Button>                    
                </Buttons>
            </ext:Window>
            </Items>
</ext:FormPanel>
           </Items>
  </ext:Viewport>      
  </form>  
   
</body>
</html>

Answer 1

如果要显示相同的表单，则不应返回RedirectResult。你应该调用View方法。您还应该在处理表单提交的http post action方法中进行条件检查。

[HttpPost]
public ActionResult CheckCondition(FormCollection form)
{
    if (someConditionCodeGoesHere==false)  // replace this with your condition code
    {
        return View();
    }
    else 
    {
        return RedirectToAction("Success");
    }
}
public ActionResult Success()
{
   return View();
}

将someConditionCodeGoesHere替换为您的条件表达式的C＃代码。尝试拥抱Stateless Http。在http调用之间保持状态的静态变量不是一个好主意。

还可以考虑使用视图模型在视图和操作方法之间传输数据。看看ASP.Net MVC How to pass data from view to controller

Answer 2

我解决了这个问题。表单提交时出错，总是在失败时...我解决了这个问题并RedirectToAction工作了。

asp.net mvc redirecttoaction不显示另一个页面

2 个答案: