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Uploading File To Server

Uploading File To Server

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eclipsed4utoo
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11 Jul, 2009 - 04:01 PM

Post #1

If you've ever wanted to add an upload feature to your website that allows visitors to upload files to a the server, then this is the tutorial for you.

It's actually fairly simple.

This code will open an OpenFileDialog box to allow the user to select a file.

html


<asp:TableCell>
    Select File:
    <input id="uplTheFile" type="file" runat="server" style="width: 476px; height: 26px" />
</asp:TableCell>

This code will add a button to the form to upload the file.

html


<asp:TableCell >
     <asp:Button ID="cmdUploadFile" value="Upload" runat="server" Text="Upload" OnClick="cmdUploadFile_Click" />
</asp:TableCell>

cmdUploadFile_Click Event


protected void cmdUploadFile_Click(object sender, EventArgs e)
{
     string strFileNameOnServer = uplTheFile.PostedFile.FileName;
     string appDataPath = HttpContext.Current.Server.MapPath("~/App_Data"); 
            
      if (string.IsNullOrEmpty(strFileNameOnServer))
      {
           lblInformation.Text = "Error - a file name must be specified.";
           return;
      }

      if (uplTheFile.PostedFile != null)
      {
            try
            {
                   uplTheFile.PostedFile.SaveAs(appDataPath + "\\" + strFileNameOnServer);
            }
            catch (Exception ex)
            {
                 lblInformation.Text = "Error saving <b>" + strFileNameOnServer + "</b><br>.  " + ex.Message;
            }
       }
}