.NET: Collection was modified; enumeration operation may not execute

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Possible Duplicate: Collection was modified; enumeration operation may not execute HI there, I am create an project estimation program and am getting the following.

Hi Peter, Thanks for your post. Other users can check-in the changes correctly from their clients? If this issue only happened on your client, please try.

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Aug 24, 2017. Hi all, Recently we had performance tests. Under load during performance test several users receiving 500 error. Is that something we should care about? Thanks for help in advance, Jakub An error has occurred. StatusCode:. MESSAGE: Collection was modified; enumeration operation may not execute.

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c# – Collection was modified; enumeration operation may not. – Note that ToList could also throw if collection was modified while ToList is. Collection modified error, Collection was modified; enumeration operation may.

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Jan 17, 2011  · While that enumeration is in progress, you’re modifying the collection within the OnNext handler, hence the exception. Concerning the timing, the default scheduler for ToObservable is the CurrentThread one, hence the enumeration takes place upon subscription and causes the OnNext handlers to be called straight away.

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Same issue i Got in 2013 when i Dipose Child Form from Master Page its Throw Exception Collection was modified; enumeration operation may not execute

Hey guys, So we've had a macro for a sidebar that's been working for a while. It's pretty straight forward, may even be what Umbraco ships anyway (I wasn't around for the initial install and didn't check to see what Umbraco has by default in ways of a sidebar). It just figures out the root of the page you're on.

"Collection was modified; enumeration operation. I hit the same error when trying to. /* Once you have modified your collection break out of.

Sep 30, 2016. Setting PersistSecurityInfo=true (to bypass this code entirely) my application proceeds succesfully without error. roji changed the title from Npgsql 3.1.8: " Collection was modified; enumeration operation may not execute" on connection Dispose to "Collection was modified; enumeration operation may not.

Mar 3, 2009. Net collections do not support being enumerated and modified at the same time. If you try to modifies the collection list while you are in the middle of enumerating it it will raise an exception. So the issue behind this error is, we can not modify the list/dictionary while we are looping through. But if we iterate a.

How to handle this error: Collection was modified; enumeration operation may not execute. Collection was modified; enumeration operation may not execute.

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Aug 25, 2016  · . ebfd4d787ca7/on-applicationexit-im-getting-this-error-collection-was-modified-enumeration-operation. Collection was modified; enumeration.

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