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copied!<p>Use an item event receiver and override the <a href="http://msdn.microsoft.com/en-us/library/microsoft.sharepoint.spitemeventreceiver.itemadded.aspx" rel="noreferrer">ItemAdded</a> event. <a href="http://msdn.microsoft.com/en-us/library/microsoft.sharepoint.spitemeventproperties_members.aspx" rel="noreferrer">SPItemEventProperties</a> will give you a reference to the list item via the ListItem property.</p> <p>There are two methods to do this (thanks to your discovery of CopyTo).</p> <p><strong>Method 1: Use <a href="http://msdn.microsoft.com/en-us/library/microsoft.sharepoint.splistitem.copyto.aspx" rel="noreferrer">CopyTo</a></strong></p> <p>This method copies any list item with its associated file and properties to any location in the same site collection (possibly other web applications as well but I haven't tested). SharePoint automatically maintains the link to the source item as well if you view the item's properties or use its drop-down menu. This link can be removed with <a href="http://msdn.microsoft.com/en-us/library/microsoft.sharepoint.splistitem.unlinkfromcopysource.aspx" rel="noreferrer">UnlinkFromCopySource</a>.</p> <p>The only trick to CopyTo is that a full URL is required for the destination location.</p> <pre><code>public class EventReceiverTest : SPItemEventReceiver { public override void ItemAdded(SPItemEventProperties properties) { properties.ListItem.CopyTo( properties.WebUrl + "/Destination/" + properties.ListItem.File.Name); } } </code></pre> <p><strong>Method 2: Stream copy, manually set properties</strong></p> <p>This method would only be necessary if you need more control over which item properties are copied or if the file's contents need to be altered.</p> <pre><code>public class EventReceiverTest : SPItemEventReceiver { public override void ItemAdded(SPItemEventProperties properties) { SPFile sourceFile = properties.ListItem.File; SPFile destFile; // Copy file from source library to destination using (Stream stream = sourceFile.OpenBinaryStream()) { SPDocumentLibrary destLib = (SPDocumentLibrary) properties.ListItem.Web.Lists["Destination"]; destFile = destLib.RootFolder.Files.Add(sourceFile.Name, stream); stream.Close(); } // Update item properties SPListItem destItem = destFile.Item; SPListItem sourceItem = sourceFile.Item; destItem["Title"] = sourceItem["Title"]; //... //... destItem["FieldX"] = sourceItem["FieldX"]; //... destItem.UpdateOverwriteVersion(); } } </code></pre> <p><strong>Deployment</strong></p> <p>You have various options for deployment as well. You can associate event receivers with a feature connected to a content type or list, and programmatically add them. See <a href="http://www.sharepointdevwiki.com/display/public/Event+Receivers" rel="noreferrer">this article at SharePointDevWiki</a> for more details.</p>

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