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"  /> 
<asp:Button ID="BtnUpload" runat="server" Text="Upload File" onclick="BtnUpload_Click" />

Back-end Code

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...
John Bhatt