c# - How to restrict file type in FileUpload control

Question

Is it possible to allow the fileupload control to show only images?

When we click the Browse button it should show only images.

Answer 1

In 2015, web browsers support the input accept attribute, so you can do this:

<asp:FileUpload ID="fileUploader" runat="server" accept=".png,.jpg,.jpeg,.gif" />

Keep in mind Visual Studio may show you a message about this as an invalid attribute of the FileUpload ASP tool, however.