Question

我有问题。我想通过RouteValueDictionary通过RedirectToAction传递字典。有可能这样做吗？

我有一个POST方法：

[HttpPost]
public ActionResult Search(MyViewModel _myViewModel)
{
    IDictionary<string, string> parameters = new Dictionary<string, string>();

    foreach (var item in _myViewModel)
    {
        parameters.Add(item.ValueId, item.ValueName);   
    }

    return RedirectToAction("Search", new RouteValueDictionary(parameters));
}

我想要一个这样的网址：

http://localhost:26755/Searcher/Search?id1=value1&id2=value2&id3=value3

GET方法应该如何？

[HttpGet]
public ActionResult Search( **what's here?** )
{
    (...)
    return View(myViewModel);
}

Answer 1

首先，我们需要修复执行重定向的Search操作。如果要在重定向时获取所需的查询字符串参数，则应使用IDictionary<string, object>而不是IDictionary<string, string>：

[HttpPost]
public ActionResult Search(MyViewModel _myViewModel)
{
    IDictionary<string, object> parameters = new Dictionary<string, object>();

    foreach (var item in _myViewModel)
    {
        parameters.Add(item.ValueId, item.ValueName);   
    }

    return RedirectToAction("Search", new RouteValueDictionary(parameters));
}

并且在目标控制器操作中完成后，您可以在请求中使用QueryString字典：

[HttpGet]
public ActionResult Search()
{
    // this.Request.QueryString is the dictionary you could use to access the
    // different keys and values being passed
    // For example:
    string value1 = this.Request.QueryString["id1"];

    ...

    // or you could loop through them depending on what exactly you are trying to achieve:
    foreach (string key in this.Request.QueryString.Keys)
    {
        string value = this.Request.QueryString[key];
        // do something with the value here
    }

    ...
}

将字典<string，string>从POST传递给GET方法（作为url参数）ASP.NET MVC

1 个答案: