Executing dynamic HTML from a string variable in C#

Question

Data is a string representing youtube embedded code and is read from my database. An example of such string is:

<iframe width="425" height="349" src="http://www.youtube.com/embed/Ki5GNq_3qT8" frameborder="0" allowfullscreen></iframe>

In my controller code I have something like below:

// the parameter embed contains the youtube code
public ActionResult Index(string embed)
{
    ViewBag.Embed = embed;
    return View();
}

My question is how do I write the Razor code that will inject the embedded HTML code into my view?

Chris · Accepted Answer · 2011-07-26 14:50:11Z

1

You need to render as a HTML string. Try this in your view:

<body>
    @(new HtmlString((String)ViewBag.Embed))
</body>

Hope this helps :)

EDIT

If you're trying to render the entire string go with this, if it's just part of it then the answer by ek_ny is the way to go.

edited Jul 26, 2011 at 14:50

answered Jul 26, 2011 at 14:44

Chris

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5 Comments

Ronald Over a year ago

Yes, I'm trying to render the whole string. But your solution didn't work. Am missing something?

Chris Over a year ago

Try @Html.Raw((String)ViewBag.Embed). If that works Ill update the answer.

Ronald Over a year ago

No error. But the flash player didn't appear as would be expected. If I write the youtube code straight up into the view it works.

Ronald Over a year ago

It didn't work. Below is the view code, please let me know if I'm doing anything stupid. @{ ViewBag.Title = "Testing"; } @Html.Raw((String)ViewBag.Embed)

Chris Over a year ago

Looks like your workflow is off. Are you actually getting the string? Put a debug line in your controller when you assign "Embed" and make sure you actually have the value.

ek_ny · Accepted Answer · 2011-07-26 14:45:07Z

0

<iframe width="425" height="349" src="http://www.youtube.com/embed/@ViewBag.Embed" frameborder="0" allowfullscreen></iframe>

You might want to also make sure the code is html encoded.

answered Jul 26, 2011 at 14:45

ek_ny

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1 Comment

Ronald Over a year ago

Pleae clarify, I am fairly new to ASP.NET-MVC. If I write the code straight up into my view it works perfectly. But I need it to be dynamic because the data is coming from my database.

Van Thoai Nguyen · Accepted Answer · 2011-07-27 04:18:39Z

0

Try razor syntax:

@: @ViewBag.Embed

Or

@Html.Raw(ViewBag.Embed)

answered Jul 27, 2011 at 4:18

Van Thoai Nguyen

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