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According to MSDN:

Control.Disposing Property Gets a value indicating whether the base Control class is in the process of disposing.

But when I checked, Disposing property of the control is always false (inside the Dispose() method itself).

When will this Disposing property become true?

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Last Post by NidhiSree
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Just because your parent is disposing, doesn't mean your child control is currently disposing. It could happen later, it could have already happened. In most cases a Dispose runs that quickly that you will never pick up the "true" flag.

The other possibility is that you have a memory leak and the control is never disposed of. The Garbage Collector might come and get it at some point, but best to be sure.

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Yes. I got it.
It will be true in the disposing event of base control. I have checked the MSDN implementation. In Dispose() method of Control class, the property is set as true in disposing code block and it is reset to false after disposed.

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