Access to .txt [VB.NET] -

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i've developed multi-user application. 1 user saves string text file, other users have read string in background process.

my problem is: when users open file read string, user wants save new string can't write file. implement system checks if file opened or not, , in case is, waits few seconds , retries.

what function or command if file opened?

there quite few patterns can deal with. 2 i'd recommend be:


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