I can't pass a value to view

问题

I am just playing with ASP.NET MVC 2 for learning. I can pass my models to view but after spend 1-2 hour i am unsuccessful to pass data to view.For example:

www.example.com/home/show/asdf i am trying to get asdf string for show it on screen.

    public ActionResult Test(string ID)
    {
        return View(ID);
    }

With this method i am trying to capture it.Then return view. In my view, i use <%: Html.LabelFor(m=>m as string) %> . This can be looking stupidly. I think that all strings on urls mapping to methods but not integers so i think i have to use question mark like this example.com/home/Test?asdf ? i will try this too.

Edit:

Passing integer on url to method argument get confused me. Example.com/home/test/2 in this url,2 will be argument of test method so i thought same thing for string. I think we can only pass integer and not possible to do samething with any other values.So i think i can only catch values by querystring so still how can i pass a simple string type to view ?

回答1:

You cannot call View function like that. Actually you can but it will look for a View named whatever you type in URL. It won't use your Test View. You cannot pass a string as a model because it has to be an object. Check View method overloads. I suggest you create a class for model, then send it to the View.

I suggest something like this.

public ActionResult Test(string id)
{
    SomeModelClass model=new SomeModelClass(id);
    return View(model);
}

If you want to pass a string, you should cast it as an object like this

public ActionResult Test(string id)
{
    return View((Object)id);
}

回答2:

public ActionResult Test(string ID)
{
 ViewData["ID"] = ID
 return View();
}



<p>


<div class="simple">
<%= Html.Encode(ViewData["ID"]) %>
</div>

回答3:

Try

public ActionResult Test(string ID)
{
 return View("Test", ID);
}

来源：https://stackoverflow.com/questions/3178887/i-cant-pass-a-value-to-view

标签

.net

asp.net-mvc-2