Hi Joe,
You need to do the following:
- Do not use TargetFolder or PhysicalTargetFolder properties, but save the files manually in the button click event handler.
- Before saving the files you can check if there is a file with the same name and rename it appropriately.
With this you gain - the UploadedFiles collection of all the uploaded files. Also, you will know exactly which file is renamed and which not.
I hope this helps.
Regards,
Veselin Vasilev
the Telerik team
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