c# - ASP.NET MVC - 无法将 string[] 值传递给另一个 Controller 操作

Question

我正在尝试将字符串数组(有两个值)从一个 Controller 操作传递到另一个操作。 但第二个 Action 只有这个值:'System.String[]'

它将值从 View 传递到 Controller 操作。但是当我尝试传递另一个值时，它只传递空字符串。

Html( Razor )

   @using (Html.BeginForm("AnnouncementCreate", "Administrator",   FormMethod.Post, new { id = "form" }))  
        {
         //There are another html elements....
      <label class="checkbox-inline">

            <input type="checkbox" name="tags" id="web" value="web" checked="checked" />
            <span>Web</span>
         </label>

        <label class="checkbox-inline ">
           <input type="checkbox" name="tags" id="ambulance" value="client" checked="checked" />
            <span>Ambulance Client</span>
        </label>

Controller :

public ActionResult AnnouncementCreate(NewsItem NEWS, Guid RSSCATEGORY,Guid NEWSIMAGETYPE,string[] tags)
 //tags variable have two values: [0]:web  , [1]:client    
 {
   ....

   //I want to Pass current string[] values to another Action  
  return RedirectToAction(actionName: "Announcements", routeValues: new { tags = tags });
    }

  //2nd action method 
  public ActionResult Announcements(string[] tags)
    {
      //tags variable has this value:  [0]: System.String[]   

     }

Answer 1

我认为最好使用 TempData，如下所示:

public ActionResult AnnouncementCreate(NewsItem NEWS, Guid RSSCATEGORY,Guid NEWSIMAGETYPE,string[] tags)
 //tags variable have two values: [0]:web  , [1]:client    
{
   ....
    TempData["tags"] = tags;
    return RedirectToAction(actionName: "Announcements");
}

  //2nd action method 
public ActionResult Announcements()
{
    var tags = (string[]) TempData["tags"];
}

祝你好运!