Is there any way to open the file explorer setting the filtering options like a desktop application does?, and I don’t want to validate the file after is selected, I want my users to view only valid files throught filtering them before.
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Is there any way to open the file explorer setting the filtering options like a desktop application does?, and I don’t want to validate the file after is selected, I want my users to view only valid files throught filtering them before.
No, for web applications there is no way yet (Dec 2009) to set the File Selector filtering. According to the INPUT tag (used by the UploadFile control to render) documentation it should be possible by adding the ‘accept’ attribute and setting the file mime type(s)… so bad that any major browser supports the accept attribute of input tags.
The best workaround is to validate the files on the client and server side.