Show Asp.net Ajax Updateprogress in Updatepanel with Postback Triggers in C#, VB.NET

By: Suresh Dasari Jun 15, 2015

Introduction:

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

<title>Show Loading Image while uploading images using updatepanel</title>

.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>

function showProgress() {

var updateProgress = $get("<%= UpdateProgress.ClientID %>");

updateProgress.style.display = "block";

}

</script>

</head>

<body>

<asp:ScriptManager ID="scriptmanager1" runat="server"></asp:ScriptManager>

<asp:UpdatePanel runat="server" ID="updatepanel1" UpdateMode="Conditional">

<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>

<asp:PostBackTrigger ControlID="btnUpload" />

</Triggers>

</asp:UpdatePanel>

<asp:UpdateProgress ID="UpdateProgress" runat="server" AssociatedUpdatePanelID="updatepanel1">

</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

Show Asp.net Ajax Updateprogress in Updatepanel with Postback Triggers

Download Sample Code Attached

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ASP.NET,C#.NET,VB.NET,JQuery,JavaScript,Gridview

Show Asp.net Ajax Updateprogress in Updatepanel with Postback Triggers in C#, VB.NET

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