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Change field value in itemupdating

Change field value in itemupdating


Generally a problem I would expect from an asynchronous handler. Everything looked as it should through ItemUpdating, but somewhere in between ItemUpdating and ItemUpdated, the data was lost, and my values were set to empty strings. Unfortunately, the only resolution available was to check whether "AfterProperties" is NULL and in that case assume that the list item is updated through code somewhere else, and do nothing.. But this was only for Microsoft Office document types, things were fine for image files, text files, xml files. It also seemed to create my second problem, where data I did set disappeared. I wrote an "item-updating" event handler that will update a few other child lists with updated Email, when it was altered in the parent list.. Consider this example, where I am checking whether a look up column value has been altered: June 6, I had the need to set Business Data and other column values in the ItemAdding event handler. If you are handling a "Lookup" column using "AfterProperties", then be careful. This would cause errors from SharePoint when a user would change data in the Edit Properties screen after upload, because it would complain that the file was recently updated.

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Change field value in itemupdating. Update field value in current list item by Event Receiver.

Change field value in itemupdating


Generally a problem I would expect from an asynchronous handler. Everything looked as it should through ItemUpdating, but somewhere in between ItemUpdating and ItemUpdated, the data was lost, and my values were set to empty strings. Unfortunately, the only resolution available was to check whether "AfterProperties" is NULL and in that case assume that the list item is updated through code somewhere else, and do nothing.. But this was only for Microsoft Office document types, things were fine for image files, text files, xml files. It also seemed to create my second problem, where data I did set disappeared. I wrote an "item-updating" event handler that will update a few other child lists with updated Email, when it was altered in the parent list.. Consider this example, where I am checking whether a look up column value has been altered: June 6, I had the need to set Business Data and other column values in the ItemAdding event handler. If you are handling a "Lookup" column using "AfterProperties", then be careful. This would cause errors from SharePoint when a user would change data in the Edit Properties screen after upload, because it would complain that the file was recently updated.

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5 thoughts on “Change field value in itemupdating

  1. [RANDKEYWORD
    Kazijin

    If you are handling a "Lookup" column using "AfterProperties", then be careful.

  2. [RANDKEYWORD
    Brarg

    Consider this example, where I am checking whether a look up column value has been altered: My SharePoint list had a column named "Email".

  3. [RANDKEYWORD
    Tauzilkree

    I had to use ItemAdding, because I needed the changes committed so that the values I set would be visible on the Edit Properties screen immediately after uploading a document.

  4. [RANDKEYWORD
    Yor

    Unfortunately, the only resolution available was to check whether "AfterProperties" is NULL and in that case assume that the list item is updated through code somewhere else, and do nothing.. Setting AfterProperties for some columns was not working using the InternalName of the field.

  5. [RANDKEYWORD
    Aramuro

    Wednesday, September 21, Problems with "AfterProperties" in list event receivers This is to summarize the inconsistent behaviors I encountered when working with "AfterProperties" in "ItemUpdating" event handler on a custom SharePoint list in SP

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