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asp.nettypesmime

How should I detect the MIME type of an uploaded file in ASP.NET?

How do people usually detect the MIME type of an uploaded file using ASP.NET?

Solution

  • in the aspx page:

    <asp:FileUpload ID="FileUpload1" runat="server" />

    in the codebehind (c#):

    string contentType = FileUpload1.PostedFile.ContentType