ASP.NET binding to a UserControl property

Question

This should be really easy but I can't figure out how to make it work...

I have an ASP.NET UserControl (.ascx) with the following property:

public string LabelCssClass
{
    get
    {
        return _labelCssClass;
    }
    set
    {
        _labelCssClass = value;
    }
}

I want to bind that property into the HTML of the UserControl at run time, using the <%# syntax. I imagine it must be something along these lines:

<td class="<%# Eval("LabelCssClass") %>" >

I've tried all different versions of Eval() and so on ... I'm not getting errors but the binding isn't working, and my breakpoints show that the property is not being accessed.

Whats the correct syntax? cheers

kemiller2002 · Accepted Answer · 2009-10-07 14:43:18Z

3

I think what you might want is this:

   <td class="<%=LabelCssClass%>">

answered Oct 7, 2009 at 14:43

kemiller2002

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3 Comments

codeulike Over a year ago

Thats the one! Thanks. What is the name of the '<%=' type of binding, versus the '<%#' type? ... I had real trouble looking up help for this ...

kemiller2002 Over a year ago

It's not binding. <%= is shorthand for Response.Write().

codeulike Over a year ago

Oh yeah : S ... I'm so used to thinking of the yellow <% things as being about binding that I forget you can also embed code ... thanks

Nathan Taylor · Accepted Answer · 2009-10-07 14:47:16Z

2

Kevin's answer is probably closer to what you are trying to achieve; however, you can successfully use the <%# %> syntax in the standard markup if you call DataBind() on the Page itself.

answered Oct 7, 2009 at 14:47

Nathan Taylor

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