C# list all file in a folder to listbox with progress bar

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i want to list all file in a folder to listbox with a progress bar to perform this.
Help, please!

What I have tried:

Can i use background worker for this problem

Posted 15-Jul-19 20:30pm

Lê Hiển Vinh

Updated 15-Jul-19 21:06pm

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Dominic Burford 16-Jul-19 3:07am

What have you tried? Do you have any code to show? Are you getting an error? Break the problem down into manageable chunks. 1. Get the list of files from the folder 2. Populate the listbox from this list 3. Add a progress bar

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OriginalGriff · Answer 1 · 2019-07-15T21:06:00

That depends on how you are doing it.
If you use Directory.GetFiles[^] then no - it's a monolithic operation which only returns when it's done, so a progress bar would have to be a guess (since you have no idea how many files it will fetch until it;s done it, you have no idea what 10%, 20%, etc complete actually are!

It is possible: c# - Show progress when searching all files in a directory - Stack Overflow[^] but to be honest, it's a fair amount of work for very little reward. A "marquee" style progress bar and GetFiles normally works fine for me.