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RadToolTip display issue in IE8

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Ron
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Ron asked on 02 Mar 2011, 11:06 PM
I've followed the example: http://demos.telerik.com/aspnet-ajax/tooltip/examples/targetcontrolsandajax/defaultcs.aspx?product=grid#

pretty much verbatim and my RadToolTip in a RadGrid works like a charm in firefox.

The problem is the display does work right at all in IE8. The content of my user controls shows up but with no tooltip type border around it.

I've attached a screenshot of what I see in both Firefox and IE8 to show the difference.

Is there anything obvious that could cause this? (I'll work on getting my code in standalone test app that I can submit if need be)

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Svetlina Anati
Telerik team
answered on 03 Mar 2011, 05:12 PM
Hi Ron,

 
Most probably the problem comes from a known limitation of Internet Explorer - all style tags after the first 30 style tags on an HTML page are not applied. This IE specific most often concerns exactly the RadToolTip control because its CSS is alphabetically one of the last declared on the page. This problem can occur in case you are using a theme with a lot of CSS (when you register the theme, automatically all the CSS is declared) or you have declared a lot of RadControls on the page. If you are using a theme you can test my assumption by removing it and test whether the RadToolTip CSS will load correctly.

If this is the case I suggest to either use a RadStyleSheetManager which will combine all the CSS on the page or reduce the CSS.

A more detailed blog about this is available below:

http://blogs.telerik.com/kamenbundev/posts/10-05-03/internet_explorer_css_limits.aspx

Kind regards,
Svetlina
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Ron
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Svetlina Anati
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