I just found the ValidatorCalloutExtender and I think it's pretty cool but I don't know how to skin it.

Can someone please post an example of the .skin file.  What I'd like to do is change the background color and make it semi-transparent.

Below is my .skin file right now (it doesn't change the properties of the VCE but at least it doesn't blow anything up).  I've tried adding BackColor="Green" right after the SkinID but then the designer blow up and says that BackColor is not a valid property.  What would be awesome would be to find out all the available properties within the skin.

Thanks in advance! 

<%@ Register 
    Assembly="AjaxControlToolkit" 
    Namespace="AjaxControlToolkit" 
    TagPrefix="ajax" 
%>
<ajax:ValidatorCalloutExtender runat="server" SkinID="Default">
        

</ajax:ValidatorCalloutExtender>

Hi,

You can not set the ValidatorCalloutExtender's backcolor, because it has no this attribute.

You can try to download the ajax control toolkit's source file of the ValidatorCalloutExtender, you will find the background of the validatorCalloutExtender control has been set in the js file, for example:

 //
        // iconCell
        //
        iconCell.width = 20;
        iconCell.style.borderTop = "1px solid black";
        iconCell.style.borderLeft = "1px solid black";
        iconCell.style.borderBottom = "1px solid black";
        iconCell.style.padding = "5px";
        iconCell.style.backgroundColor = 'LemonChiffon';

so if you want to set it, you can try to get it from the ValidatorCalloutBehavior.js file, and set it by javascript method.

Therefore, it is not easy to set this control's background.

I know that there is no direct property for background color but there is a property for skinID so I was hoping that would work.

What exactly can you skin for this object then? 

Hi,

The skin that generated any appearance related property on a control, if it does not provided the relate property or interface, you will not control its appearance by skin. 

If you want to set ValidatorCalloutExtender's backclolor, you may only use javascript to get it from the .js file, and set it by javascript method.