Silverlight z-index not working!

Hahhahaha, I know the answer to this :)). Ok, enough being a jerk. Basically Silverlight would not entertain z-index parameter which is assigned to the object tag until it has a parameter Windowless set to true. Here is a typical object tag which works with z-index as –1 on it.

<object data="data:application/x-silverlight-2," type="application/x-silverlight-2" width="100%" height="100%" style="z-index:-1;">
<param name="source" value="ClientBin/SilverlightApplication4.xap"/>
<param name="onerror" value="onSilverlightError" />
<param name="background" value="white" />
<param name="minRuntimeVersion" value="2.0.31005.0" />
<param name="autoUpgrade" value="true" />
<param name="Windowless" value="true" />
<a href="" style="text-decoration: none;">
<img src="" alt="Get Microsoft Silverlight" style="border-style: none"/>

Although there is one caveat here, while creating a Silverlight object using the createObject method, be sure to use the parameter name isWindowless and not Windowless.



Anonymous said...

"be sure to use the parameter name isWindowless and not Windowless"
Exactly opposite: you need to use Windowless=true

Anonymous said...

Hi, really helpful...
could you explain exactly what does windowless means..

Abhang Rane said...

Hi there,
So Windowless property can be used to tell whether your silverlight control will blend with the other HTML controls on the page. What I mean is, if your silveright control is displayed within the Silveright window, that is Windowless=false, then it will hide other HTML controls behind it regardless of the CSS values. If you set Windowless as true, then your CSS would work and you can overlay your HTML controls over the Silverlight control if needed.
Hope this helps!

Sylvain said...

Thanks !!!

Try this :

Css :

It works for me !

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