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[12.1] NullReferenceException on Columns.Clear() when collection is empty
posted

Hello,

I'm playing with NetAdvantage 12.1.20121.1005. One thing which was no problem in the latest 11.2 release throws an exception now:

I have a WebHierarchicalDataGrid, building its columns in code behind. Before I add columns to the column collection I want to make shure that the collection is empty:

DlgSelectedItemsHDG.Columns.Clear();

If the collection is already empty this line throws a NullReferenceException ("Object reference not set to an instance of an object") which it did not in release 11.2. Using

if (DlgSelectedItemsHDG.Columns.Count > 0) DlgSelectedItemsHDG.Columns.Clear();

works as expected. Imho this a bug, since emptying an already empty collection should be possible.

Parents
  • 7499
    posted

    Hello Bernhardus,

    I have attached your case to the development issue ID 110950. You will be notified as soon as the service release is out for 12.1.

    Please let me know if  you have any further questions regarding this matter.

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