Published on : 2017-04-15 05:05:56

Additionally, the properties parameter may not be populated with information that you would tend to expect to be present. If you find yourself in this situation, then you’ll have to solve the problem in code. These events occur before the action takes place. This is because you have two classes – one that is handling the itemupdating event and in which the instance level variable is set, and one that is handling the itemupdated event in which the instance level variable is not set. You may be able to modify property values in the event handler. Itemupdating, and ofcourse the class / assembly information if you have the implementation in a different class / assembly. Afterproperties[ vti_sourcecontrolcheckedoutby ] == null && properties. Background in sharepoint, an event receiver can be hooked to a splist to listen to any events occuring on the splist. Beforeproperties[ vti_sourcecontrolcheckedoutby ]. Solution a property : “vti_sourcecontrolcheckedoutby” is provided that can be used to distinguish if the update is because of check-in or due to other reasons. But that option exists to be used, and some people really do need it. This happens due to race condition between the two threads when updating the document / item. Property modification is not available in an asynchronous event handler (even if it is running synchronously).

So if you have a piece of code that you want to be executed only when the check-in is done then enclose it in a conditional statement like this : public override void itemupdated(spitemeventproperties properties) { // perform actions only if the update event is triggered by check-in if (properties itemupdating itemupdated. This is the reason why itemupdating and itemupdated are called twice (once for each step of check-in process) itemupdating itemupdated. These event handlers run synchronously – they occur in order and one must complete before the next is run. This means that you can respond to the event but you cannot cancel it or modify anything about it. This is how you do it : spweb spweb = getspwebinstance(); // assuming that you have a document library by name of my list splist shareddocuments = web. It appears as though they are firing twice in this situation because sharepoint is updating the properties on the document and then checking it in on the same request. Lists[ my list ]; // attach a itemupdated event. At the time of checking-in the document, this local copy updates the original copy (even if there are no changes), then there is another request that does check-in on the document. Cause when force checkout is enabled on document library, this is how the document editing works : when you checkout a document for editing, a local copy of the document is created that saves all the changes made by the user. Asynchronous operations may occur in any order and complete in order. Note:    when the property editor dialog displays, the user has the option to cancel out of the dialog.        each event method has a spitemeventproperties parameter named properties. = null) { // your code goes here } else { //ignore } } putting your code block in correct conditional section would make sure that your code gets executed for the check-in event callback.

So the double-event firing isn’t a bug, it’s just a result of the automatic check-in that occurs when you first add a document to a document library. For example, if you define an instance level variable in the class to store data in the itemupdating event, then try to access that data in the itemupdated event, you will find that the data is not there when you go to check it in the itemupdated event.        although asynchronous events expose a spitemeventproperties parameter named properties just like their synchronous counterparts, remember that the operation has already completed so you cannot modify anything in the properties parameter (well, you can, but it doesn’t do anything).updating contacts exchange blackberry.
. = null)     {     } spitemeventreceiver’s itemupdating and itemupdated methods are called twice. Itemupdating gets called synchronously just before an item is updated. X, culture=neutral, publickeytoken=thepublickeytoken speventreceiverdef. These events occur after the action takes place. (to be precise) and if you have update() or systemupdate() call on the document / item, this leads to getting an exception message on screen about “xyz has already been modified”. The actual add / update operation for which the adding / updating event is being fired). You just have to check to see if the vti_sourcecontrolcheckedoutby property on the item was cleared: code: {          && properties. The second time they fire it is in response to the document being checked in. .Regular expression for validating email address in asp net.

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