I have a .NET asp page that opens a RadWindow. Is there a way to know when the RadWindow is closed by the user? I have a function that I need to execute when the RadWindow is closed. I have tried setting DestroyOnClose to true and calling my function through the OnClientClose event, but setting DestroyOnClose to true causes a popup error on my page. The error says "Exception while executing client event OnClientClose Error:'this._iframe' is null or not an object." I have no idea what is causing that error. Is there a way to detect when the user closes the RadWindow without using DestroyOnClose and OnClientClose? Do you know what is causing my error when I do use those things?
I appreciate any help. Thanks,
Erika
I appreciate any help. Thanks,
Erika
1 Answer, 1 is accepted
0
Hello Erika,
Usually such error (this._iframe .... ) is raised when you try to reference RadWindow / RadWindowManager before the control is fully rendered on the page. Most often this happens in scenarios where a code is executed in window.onload (i.e. when the page is loaded). All ASP.NET AJAX controls however (including ours), are rendered on a later stage - in Sys.Application.Init.. In such scenarios, you need to make sure that the code is executed only after all controls are rendered - for example, you can use pageLoad() (this client-side function is called automatically when all Ajax controls are rendered on the page) or use some timeout.
In any way, to be able to help, I need to get a better view over your exact setup and logic. Please open a support ticket and send me a sample project where the problem can be reproduced. I will check it and do my best to help you right away.
Kind regards,
Georgi Tunev
the Telerik team
Usually such error (this._iframe .... ) is raised when you try to reference RadWindow / RadWindowManager before the control is fully rendered on the page. Most often this happens in scenarios where a code is executed in window.onload (i.e. when the page is loaded). All ASP.NET AJAX controls however (including ours), are rendered on a later stage - in Sys.Application.Init.. In such scenarios, you need to make sure that the code is executed only after all controls are rendered - for example, you can use pageLoad() (this client-side function is called automatically when all Ajax controls are rendered on the page) or use some timeout.
In any way, to be able to help, I need to get a better view over your exact setup and logic. Please open a support ticket and send me a sample project where the problem can be reproduced. I will check it and do my best to help you right away.
Kind regards,
Georgi Tunev
the Telerik team
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