Managing ASP.NET with the MVC Razor Engine

Question

I am using ASP.NET MVC 3 with the Razor template engine for my site. I currently allow file upload as follows:

<form action="/File/Upload" method="post" enctype="multipart/form-data">
    <label for="file">Upload a file:</label>
    <input type="file" name="file" id="file" /> 
    <input type="submit" name="submit" value="Submit" />
</form>

But I would like to use a third-party control, for example NeatUpload , which allows you to show a progress bar, select multiple files, etc.

In the documentation, they show that the control is used as follows:

<%@ Register TagPrefix="Upload" Namespace="Brettle.Web.NeatUpload"
         Assembly="Brettle.Web.NeatUpload" %>
<Upload:InputFile id="inputFileId" runat="server" />

with some code.

The Razor engine, for obvious reasons, does not like this syntax. Is there any other way to use third-party controls with it, or am I out of luck?

Answer 1

, -, MVC. , , Web- ​​MVC . , , .

. , , .

- Razor .

Answer 2

, NeatUpload ( !) javascript HTML. , MCV :)

http://www.brettle.com/NeatUpload-1.3/dotnet/docs/Manual.html#3.11.Using%20NeatUpload%20from%20JavaScript%7Coutline

, " MCV"

: , , NeatUpload http://neatupload.codeplex.com/, , , ( !)

Answer 3

Razor WebForms. , MVC.

Answer 4

, MVCRecaptcha, , , . , , . , , , :

, , RenderControl html :

var captchaControl = new RecaptchaControl { ... }
var htmlWriter = new HtmlTextWriter(new StringWriter());
captchaControl.RenderControl(htmlWriter);
return htmlWriter.InnerWriter.ToString();

, MVC:

class CaptchaValidatorAttribute : ActionFilterAttribute {...}

, :

var recaptchaResponse = captchaValidtor.Validate();

// this will push the result value into a parameter in our Action
filterContext.ActionParameters["captchaValid"] = recaptchaResponse.IsValid;

, :

[CaptchaValidator]
[AcceptVerbs( HttpVerbs.Post )]
public ActionResult CreateComment( Int32 id, bool captchaValid )
{
    if (!captchaValid)
    {
        ModelState.AddModelError("_FORM", "You did not type the verification word correctly. Please try again.");
    }
    // ...
}

, , ASP.Net MVC.

Answer 5

You can do this if you just want to visualize the control content and don’t care about registering scripts or postbacks, etc.

Create your own HtmlTextWriter, write the output to it, and then draw this line in your Razor. This is basically an idea from @VeeTheSecond, brought to practice:

@{
    System.Web.UI.WebControls.Label label = new System.Web.UI.WebControls.Label()
    {
        Text = "Hello World!"
    };

    HtmlString renderedControl;

    using (StringWriter w = new StringWriter())
    {
        using (HtmlTextWriter htmlW = new HtmlTextWriter(w))
        {
            label.RenderControl(htmlW);

            renderedControl = new HtmlString(w.ToString());
        }
    }
}
<div>
    @renderedControl
</div>

Answer 6

Try putting the control in the <form runat = "server"> tag.