Delete Files

Radzen Studio Blazor WebAssembly
1

Hello,
I upload documents to the server using the RadzenUpload Component. The files are saved in wwwroot and the path to the document is saved in DB.

Now I want to delete the files too, but I can't get it to work.
I extend the DocumentsController to OnAfterCtDocumentDeleted in a CustomController:

partial void OnAfterCtDocumentDeleted (Models.Idlinkeddata.CtDocument item) {

        if (System.IO.File.Exists (item.Document))
        {
            System.IO.File.Delete (item.Document);
        }

-> the Method is called in public IActionResult DeleteCtDocument(int key), but does nothing

I also tried implementing the method in the XXX.razor.cs(client, not server) file as a custom method that I can invoke in radzen on ButtonClickEvent:

        private void DeleteFile (string filePath)
    {
        
        if (System.IO.File.Exists (filePath))
        {
            System.IO.File.Delete (filePath);
        }
    }

-> but the method is not called.

Do you have any idea why it's not working? Is there any other way to delete files?

Thank you!

2

You should try debugging the application to inspect if item.Document contains the right value. It probably does not at the moment and File.Exists always returns false.

3

Hello,
the item.Document is always something like: http://localhost:5000/7/files.xlsx. I use it to download the files.

4

Then File.Exists will never return true. You need to store the physical path of your file as well.

5

Yes, that was the problem. It works with physical path. Thank you!