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Multiple file upload with asp.net

4.5 and Visual Studio 2012

Posted on Monday, July 02, 2012 by jalpesh vadgama

This post will be part ofVisual Studio 2012 feature

series.

In earlier version of ASP.NET there is no way to upload

multiple files at same time. We need to use third party

control or we need to create custom control for that.

But with asp.net 4.5 now its possible to upload multiple

file with file upload control.

With ASP.NET 4.5 version Microsoft has enhanced file

upload control to support HTML5 multiple attribute.

There is a property called AllowedMultiple to support

that attribute and with that you can easily upload the

file. So what we are waiting for!! Its time to create one

example.

On the default.aspx file I have written following.

Here you can see that I have given file upload control

id as multipleFile and I have set AllowMultiple file to

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true. I have also taken one button for uploading file.For

this example I am going to upload file in images folder.

As you can see I have also attached event handler for

buttons click event. So its time to write server side

code for this. Following code is for the server side.

Here in the above code you can see that I have

checked whether multiple file upload control has

multiple files or not and then I have save that in Images

folder of web application. Once you run the application

in browser it will look like following.

I have selected two files. Once I have selected and

clicked on upload file button it will give message like

following.

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protectedvoiduploadFile_Click(objectsend{ if(multipleFile.HasFiles) { foreach(HttpPostedFile uploadedFile

{ uploadedFile.SaveAs(System.IO.P Response.Write("File uploaded s } }}

?

http://www.dotnetjalps.com/2012/07/Multiple-file-upload-with-asp-net-4-5-and-Visual-Studio-2012.html#http://www.dotnetjalps.com/2012/07/Multiple-file-upload-with-asp-net-4-5-and-Visual-Studio-2012.htmlhttp://www.dotnetjalps.com/2012/07/Event-handler-generation-in-Visual-Studio-2012.htmlhttp://www.dotnetjalps.com/2012/07/Dividing-web-config-into-multiple-files-in-asp-net.htmlhttp://www.dotnetjalps.com/2012/07/Free-Visual-Studio-2012-eBook-from-Telerik.htmlhttp://www.dotnetjalps.com/2012/07/Model-binding-with-ASP-NET-45-and-Visual-Studio-2012.htmlhttp://www.dotnetjalps.com/2012/07/Why-we-should-write-blogs-and-do-community-work.htmlhttp://www.dotnetjalps.com/2012/07/Multiple-file-upload-with-asp-net-mvc-and-HTML5.htmlhttp://www.dotnetjalps.com/2012_07_01_archive.htmlhttp://void%280%29/http://www.dotnetjalps.com/2012_08_01_archive.htmlhttp://void%280%29/http://www.dotnetjalps.com/2012_09_01_archive.htmlhttp://void%280%29/http://www.dotnetjalps.com/2012_10_01_archive.htmlhttp://void%280%29/http://www.dotnetjalps.com/2012_12_01_archive.htmlhttp://void%280%29/http://www.dotnetjalps.com/search?updated-min=2012-01-01T00:00:00%2B05:30&updated-max=2013-01-01T00:00:00%2B05:30&max-results=50http://void%280%29/http://www.dotnetjalps.com/search?updated-min=2013-01-01T00:00:00%2B05:30&updated-max=2014-01-01T00:00:00%2B05:30&max-results=50http://void%280%29/http://feeds.feedburner.com/DotNetJalpshttp://lh6.ggpht.com/-5NfyUAq0hF4/T_ChijmfrSI/AAAAAAAABZ0/-dYd9dQ33nE/s1600-h/MultipleUploadFileswithASP.NET%25255B3%25255D.png

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As you can see now it has successfully upload file and

you can see in windows explorer like following.

As you can see its very easy to upload multiple file in

ASP.NET 4.5. Stay tuned for more. Till then happy

programming.

P.S.: This feature is only supported in browser who

support HTML5 multiple file upload. For other

browsers it will work like normal file upload control in

asp.net.

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