[Solved] Different Windows Animation & Duration for On Open and On Close

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AnimationContainer Window
Alan
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Alan asked on 08 Jun 2026, 12:04 PM

Hi,

Have a bunch of modal windows that I open in our application.  Looking to have a different animation to apply when the modal opens vs. when it closes (and different duration).  It seems like the Window animation parameter only supports a single type of animation and single duration.

1. Is this correct?

2. Is there a suggested workaround?  Maybe using the Animation Container?

Any info or suggestions would be appreciated.

Alan

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Dimo
Telerik team
answered on 09 Jun 2026, 01:17 PM

Hello Alan,

1. Yes.

2. Change the Window animation parameter values in the Window VisibleChanged event. Based on your private ticket 1715257, you are already using this approach, but I have a suggestion for a minor change - instead of updating the parameters when the new values are needed and delaying the Window closing, do that in advance: https://blazorrepl.telerik.com/wgYKECPQ35YqhraH22 The AnimationContainer also has shared parameters for opening and closing animations.

On a side note, please notify us when you are posting two duplicate or closely related forum threads and ticket. Thanks for your understanding and cooperation.

Regards,
Dimo
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AnimationContainer Window
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Alan
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Dimo
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