# Getting warning using XMLList.contains()

**URL:** <https://forum.kirupa.com/t/getting-warning-using-xmllist-contains/263566>\
**Category:** flash\
**Created:** [June 17, 2008, 9:26am UTC](https://forum.kirupa.com/t/getting-warning-using-xmllist-contains/263566 "2008-06-17T09:26:29Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![GfO](https://avatars.discourse-cdn.com/v4/letter/g/e56c9b/32.png) [@GfO](https://forum.kirupa.com/u/GfO)\
**Post date:** [June 17, 2008, 9:26am UTC](https://forum.kirupa.com/t/getting-warning-using-xmllist-contains/263566/1 "2008-06-17T09:26:29Z")

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Hello good people!

I’m having a problem using the XMLList.contains() method. It seems to run like it should, but I keep getting these annoying warnings in the output window:  
Warning: 3594: contains is not a recognized method of the dynamic class XMLList.

I’m adding an item from xmllist1 to xmllist2 if its value is as required and if it isn’t already present in xmllist2. Here’s the code:

```auto
xmllist2 += xmllist1.((value >= required) && (xmllist2.contains(@ID) == false)).@ID;

```

Does anyone have experience with this warning, or hints on how to get rid of it?

Appreciate it!

---

<div class="post-metadata">

**Author:** ![GfO](https://avatars.discourse-cdn.com/v4/letter/g/e56c9b/32.png) [@GfO](https://forum.kirupa.com/u/GfO)\
**Post date:** [June 18, 2008, 8:49am UTC](https://forum.kirupa.com/t/getting-warning-using-xmllist-contains/263566/2 "2008-06-18T08:49:08Z")

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Anyone?