How to programmatically download attachments from list items in Windows SharePoint Services

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INTRODUCTION

This article describes how to programmatically download attachments from list items in Microsoft Windows SharePoint Services.

MORE INFORMATION

The attachments of a list item are stored in the Web folder in the following structure:

Folders["Lists"].SubFolders[strListName].SubFolders["Attachments"].SubFolders[item.ID.ToString()];

The following code is an example of code that you can use to programmatically download attachments from list items.

	SPWeb web = new SPSite("<Site URL>").OpenWeb();
		//Open List
		SPList list = web.Lists["<ListName>"];
		//Get the item
		SPListItem item = list.Items[1];
		//Get the folder
		SPFolder folder = web.Folders["Lists"].SubFolders[strListName].SubFolders["Attachments"].SubFolders[item.ID.ToString()]; 
		
		foreach(SPFile file in folder.Files)
		{
			byte[] binFile = file.OpenBinary();
			System.IO.FileStream fstream = System.IO.File.Create("c:\\MyDownloadFolder\\" + file.Name);	
			fstream.Write(binFile, 0, binFile.Length);
		}