How to get HTML of HtmlControl object in backend

Question

I have a short snippet of C# code like this:

HtmlGenericControl titleH3 = new HtmlGenericControl("h3");
titleH3.Attributes.Add("class", "accordion");

HtmlAnchor titleAnchor = new HtmlAnchor();
titleAnchor.HRef = "#";
titleAnchor.InnerText = "Foo Bar";
titleH3.Controls.Add(titleAnchor);

What I want is a way to return a string that looks like this:

<h3 class="accordion"><a href="#">Foo Bar</a></h3>

Any thoughts or suggestions?

wsanville · Accepted Answer · 2010-04-23 20:29:27Z

4

This is the method that I have used in the past to get a control's rendered HTML ahead of time (make sure to include System.IO):

protected string ControlToHtml(Control c)
{
    StringWriter sw = new StringWriter();
    HtmlTextWriter htmlWriter = new HtmlTextWriter(sw);
    c.RenderControl(htmlWriter);
    return sw.ToString();
}

Returns this for your test case:

<h3 class="accordion"><a href="#">Foo Bar</a></h3>

answered Apr 23, 2010 at 20:29

wsanville

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Todd H. · Accepted Answer · 2011-06-17 19:38:18Z

1

Here is an example that you can use to extend any HtmlControl to have a Render() method:

public static string Render(this HtmlAnchor TheAnchor)
{
    StringWriter sw = new StringWriter();
    HtmlTextWriter htmlWriter = new HtmlTextWriter(sw);
    TheAnchor.RenderControl(htmlWriter);
    return sw.ToString(); 
}

answered Jun 17, 2011 at 19:38

Todd H.

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1 Comment

mike Over a year ago

...or extend all HTMLControls at once by changing HtmlAnchor to HtmlControl in the above code. ;-)

Jeremy · Accepted Answer · 2010-04-23 20:24:03Z

0

Shouldn't there be a Render method that forces it to emit its own HTML?

answered Apr 23, 2010 at 20:24

Jeremy

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