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POSetting SPListItem field in ItemUpdating not persisted with SystemUpdate(false)
 

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  1. POSetting SPListItem field in ItemUpdating not persisted with SystemUpdate(false)
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    <p>I have a custom list definition with an event receiver that overrides ItemUpdating. The list has <em>content approval</em> turned on, along with <em>create major and minor versions</em>. </p> <p>If the item is being approved, I want to set a boolean field (Is Published?) without affecting the version and approval status. I understand <strong>SystemUpdate(false)</strong> is suppose to do this, however it does not persist the bool value. If I use <strong>Update()</strong> or <strong>SystemUpdate()</strong>, the value is persisted but it doesn't set the approval status to <em>Approved</em> and throws the following error: </p> <blockquote> <p>The file [filename] has been modified by [user] on [date].</p> </blockquote> <pre><code>public override void ItemUpdating(SPItemEventProperties properties) { base.ItemUpdating(properties); EventFiringEnabled = false; try { if (IsChangingToApproved(properties)) { if (!Validate(properties)) {// This person can't approve properties.ErrorMessage = "You don't have appropriate permissions."; properties.Status = SPEventReceiverStatus.CancelWithError; properties.Cancel = true; } else {// Set the IsPublished flag to true var isPublishedField = properties.List.Fields["Is Published?"]; if (isPublishedField != null) { properties.ListItem[isPublishedField.InternalName] = true; // Doesn't update bool, ItemUpdating event functions normally properties.ListItem.SystemUpdate(false); // Updates bool, but ItemUpdating event does not complete //properties.ListItem.Update(); //properties.ListItem.SystemUpdate(); } } } } catch (Exception ex) { return; } finally { EventFiringEnabled = true; } } </code></pre> <p>Things I've tried:</p> <ul> <li>Updating the listItem with a <code>using Site/using Web</code> block instead of updating the item from the properties.</li> <li>Setting the properties.AfterProperties["Is Published?"] field.</li> </ul>
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