ASP.NET 2005: How- File Upload input mask

Using a file upload control, how do I set an input mask so that it will only "browse" files that contain:  .jpg, .jpeg, .gif  ?

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Hello arthurh88,

You can not set such option for <input type=file... control.

What you can do is to add an onChange event handler on client side and check selected extension on client side before file is uploaded to server. Here is an example of how to do that:

Another solution is to write your own (or find an existing) ActiveX, Applet, Flash or similar control.


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