Question

I have a string value that is returned from the database. the value will always either be “Red” or “Green”. I am trying to change the forecolor of a label in my repeater based on this string value. If the value is “Red” the forecolor of the label should be red and visa versa.

I try by using this code in my asp page:

 ForeColor='<%# Eval("Color")%>'

however I get the flowing error:

Specified cast is not valid.

I have had a similar problem before by trying to set the width of an image dynamically and ended up casting the value like this:

<asp:Image 
  ID="Image1" 
  runat="server" 
  Width='<%# System.Web.UI.WebControls.Unit.Parse(Eval("ImageSize").ToString()) %>'
  ImageUrl="~/Images/ProgressBar.jpg"/>

The problem is how do I use the same technique with a system color?

Answer 1

ForeColor needs a Color object not a string.

So you could use ColorTranslator.FromHtml:

 ForeColor='<%# Drawing.ColorTranslator.FromHtml(Eval("Color").ToString())%>'