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copied!<p>I have found that using a Visual Studio workflow allows me the most flexibility to do this. A SharePoint Designer Workflow would be simpler, but would be harder to deploy to different sites and libraries.</p> <p>After reading some good articles including <a href="http://ikarstein.wordpress.com/2011/03/30/walkthrough-creating-a-simple-sequential-workflow-with-a-custom-task-form-in-sharepoint-2010-using-visual-studio-2010-part-2-of-2/" rel="nofollow noreferrer">this</a> and <a href="http://msdn.microsoft.com/en-us/library/gg265727.aspx" rel="nofollow noreferrer">this</a> I have come up with this code which seems to work. It starts a workflow and waits until the document is not in a LockState and then processes the filename.</p> <p>The workflow looks like this:</p> <p><img src="https://i.stack.imgur.com/O3o1h.png" alt="Workflow image"></p> <p>And here is the code behind:</p> <pre><code>namespace ControlledDocuments.RenameWorkflow { public sealed partial class RenameWorkflow : SequentialWorkflowActivity { public RenameWorkflow() { InitializeComponent(); } public Guid workflowId = default(System.Guid); public SPWorkflowActivationProperties workflowProperties = new SPWorkflowActivationProperties(); Boolean continueWaiting = true; private void onWorkflowActivated1_Invoked(object sender, ExternalDataEventArgs e) { CheckFileStatus(); } private void whileActivity(object sender, ConditionalEventArgs e) { e.Result = continueWaiting; } private void onWorkflowItemChanged(object sender, ExternalDataEventArgs e) { CheckFileStatus(); } private void CheckFileStatus() { if (workflowProperties.Item.File.LockType == SPFile.SPLockType.None) { continueWaiting = false; } } private void renameFile(object sender, EventArgs e) { try { SPListItem currentItem = workflowProperties.Item; if (currentItem["_dlc_DocId"] != null) { string docId = currentItem["_dlc_DocId"].ToString(); if (!currentItem["BaseName"].ToString().StartsWith(docId)) { currentItem["BaseName"] = docId + currentItem["BaseName"]; currentItem.SystemUpdate(); } } } catch (Exception ex) { //Should do something useful here } } } } </code></pre> <p>Hope this helps someone else if they have the same problem.</p>

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