Uploading Multiple Files in ASP.NET using VB.NET

In ASP.NET 2.0, the FileUpload control enables the users to upload the files from your web pages. Here, I going to show, "how can you upload multiple files on a single click in ASP.NET 2.0".
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In ASP.NET 2.0, the FileUpload control enables the users to upload the files from your web pages. The FileUpload control consists of a text box and a browse button. Clicking on the button allows the users to select a file on the client and upload it to the server.
Let us start with uploading multiple files on a single "click". Follow these 2 steps:

Step 1:

Drag and drop multiple (according to the suggested code, 4 can be dragged and dropped) FileUpload controls to the designer.

Step 2: 

Drop a Button control and rename it to "Upload".

Following is the aspx code:

 

 

<%@ Page Language="VB" AutoEventWireup="false" CodeFile="Default.aspx.vb" Inherits="_Default" %>

 

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml">

<head runat="server">

    <title>Make Multiple Upload</title>

</head>

<body>

    <form id="form1" runat="server">

        <div>

            <asp:FileUpload ID="FileUpload1" runat="server" /><br />

            <asp:FileUpload ID="FileUpload2" runat="server" /><br />

            <asp:FileUpload ID="FileUpload3" runat="server" /><br />

            <asp:FileUpload ID="FileUpload4" runat="server" />

            <br />

            <asp:Button ID="btnUpload" runat="server" Text="Upload" OnClick="btnUpload_Click1" />

            <br />

            <asp:Label ID="Label1" runat="server"></asp:Label>

        </div>

    </form>

</body>

</html>

 

 

Following is the aspx.vb code:

 

Imports System.IO

 

Partial Class _Default

    Inherits System.Web.UI.Page

 

    Protected Sub btnUpload_Click1(ByVal sender As Object, ByVal e As System.EventArgs) Handles btnUpload.Click

        Try

            'To Upload Multiple Files on Single Click

            Dim hfc As HttpFileCollection = Request.Files

            For i As Integer = 0 To hfc.Count - 1

                Dim hpf As HttpPostedFile = hfc(i)

                If hpf.ContentLength > 0 Then

                    hpf.SaveAs((Server.MapPath("MyFiles") & "\") + Path.GetFileName(hpf.FileName))

                End If

            Next

        Catch ex As Exception

        End Try

 

    End Sub

End Class

 

Add a tag in web.config file,  

<httpRuntime

               executionTimeout="200"

               maxRequestLength="8192"

               requestLengthDiskThreshold="256"

               useFullyQualifiedRedirectUrl="false"

               minFreeThreads="8"

               minLocalRequestFreeThreads="4"

               appRequestQueueLimit="5000"

               enableKernelOutputCache="true"

               enableVersionHeader="true"

               requireRootedSaveAsPath="true"

               enable="true"

               shutdownTimeout="90"

               delayNotificationTimeout="5"

               waitChangeNotification="0"

               maxWaitChangeNotification="0"

               enableHeaderChecking="true"

               sendCacheControlHeader="true"

               apartmentThreading="false"/>


 

When you run the application; output will be:

UploadMultipleFile.JPG

Image 1.

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