File Upload Control with File Type Filter

Hi,

We are going to learn how to upload a File using FileUpload Control in ASP.NET.

ASPX Code. We Placed a FileUpload Control and a button to Click.

<asp:FileUpload ID="FileUpload1" runat="server"  /> &nbsp; &nbsp;<asp:Button 
        ID="BtnUpload" runat="server" Text="Upload File" onclick="BtnUpload_Click" />

Now BtnUpload_Click event in .cs page.
We are going to Upload only Picture (.JPG file or .BMP file).

    protected void BtnUpload_Click(object sender, EventArgs e)
    {
        string sSiteFolder = "ResumeFolder";
        string sRealPath = Server.MapPath(sSiteFolder);
        if (!Directory.Exists(sRealPath))
            Directory.CreateDirectory(sRealPath);
     string CompletePath = sRealPath + FileUpload1.FileName;
        string FileExt = CompletePath.Substring(CompletePath.IndexOf("."));
        switch (FileExt)
        {
            case ".jpg":
                FileUpload1.SaveAs(sRealPath + FileUpload1.FileName);
                break;
            case ".JPG":
                FileUpload1.SaveAs(sRealPath + FileUpload1.FileName);
                break;
            case ".bmp":
                FileUpload1.SaveAs(sRealPath + FileUpload1.FileName);
                break;
            case ".BMP":
                FileUpload1.SaveAs(sRealPath + FileUpload1.FileName);
                break;
        }
    }

Enjoy...