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Fileupload Control Example in Ajax Updatepanel in Asp.net with C#, VB.NET

Jun 15, 2015
Introduction

Here I will explain how to upload files using fileupload control in ajax updatepanel in asp.net
 using c#vb.net with example or show or display loading / progress bar while uploading files using fileupload control in ajax updatepanel updateprogress in asp.net using c#, vb.net with example. By using ajax postbacktrigger and updateprogress properties in ajax updatepanel we can upload files using fileupload control in asp.net and we can show loading image while upload files using c#, vb.net.

Description:
  
In previous articles I explained show progressbar during postbacks using updatepanel, ajax updatepanel with triggers example in asp.net, asp.net confirmationbox with yes/no options using modalpopup, ajax modalpopupextender to edit gridview row details,
group columns in gridview, gridview examples in asp.net and many articles relating to gridview, asp.net, c#,vb.net and jQuery. Now I will explain how to show progress bar while uploading files using ajax updatepanel updateprogess in asp.net using c#, vb.net.

Now open your aspx page and write the code like as shown below


<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
<title>Show Loading Image while uploading images using updatepanel</title>
<style type="text/css">
.overlay
{
position: fixed;
z-index: 999;
height: 100%;
width: 100%;
top: 0;
background-color: Black;
filter: alpha(opacity=60);
opacity: 0.6;
-moz-opacity: 0.8;
}
</style>
<script type="text/javascript">
function showProgress() {
var updateProgress = $get("<%= UpdateProgress.ClientID %>");
updateProgress.style.display = "block";
}
</script>
</head>
<body>
<form id="form1" runat="server">
<asp:ScriptManager ID="scriptmanager1" runat="server"></asp:ScriptManager>
<asp:UpdatePanel runat="server" ID="updatepanel1" UpdateMode="Conditional">
<ContentTemplate>
<div style="align:center; margin-left:350px; margin-top:200px">
<asp:FileUpload ID="uploadfiles1" runat="server" />
<asp:Button ID="btnUpload" Text="Upload" runat="server" onclick="btnUpload_Click" OnClientClick="showProgress()" /><br />
<asp:Label ID="lblMsg" runat="server"/>
</div>
</ContentTemplate>
<Triggers>
<asp:PostBackTrigger ControlID="btnUpload" />
</Triggers>
</asp:UpdatePanel>
<asp:UpdateProgress ID="UpdateProgress" runat="server" AssociatedUpdatePanelID="updatepanel1">
<ProgressTemplate>
<div class="overlay">
<div style=" z-index: 1000; margin-left: 350px;margin-top:200px;opacity: 1;-moz-opacity: 1;">
<img alt="" src="loading.gif" />
</div>
</div>
</ProgressTemplate>
</asp:UpdateProgress>
</form>
</body>
</html>

After completion of aspx page create new folder uploads in your application to upload files and add following namespaces in codebehind

C# Code


using System;
using System.IO;

After completion of adding namespaces you need to write the code like as shown below


protected void Page_Load(object sender, EventArgs e)
{
}
protected void btnUpload_Click(object sender, EventArgs e)
{
string fileName = Path.GetFileName(uploadfiles1.FileName);
uploadfiles1.SaveAs(Server.MapPath("~/uploads/") + fileName);
lblMsg.Text = "File Uploaded Successfully";
}

VB.NET Code


Imports System.IO
Partial Class VBCode
Inherits System.Web.UI.Page
Protected Sub Page_Load(ByVal sender As Object, ByVal e As EventArgs)
End Sub
Protected Sub btnUpload_Click(sender As Object, e As EventArgs)
Dim fileName As String = Path.GetFileName(uploadfiles1.FileName)
uploadfiles1.SaveAs(Server.MapPath("~/uploads/") & fileName)
lblMsg.Text = "File Uploaded Successfully"
End Sub
End Class

Demo

Fileupload Control Example in Ajax Updatepanel in Asp.net with C#, VB.NET
Download Sample Code Attached

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