# "Not handled: OnNewAll" error

**URL:** <https://forums.fusetools.com/t/not-handled-onnewall-error/4494>\
**Category:** Bug Reports\
**Created:** [September 21, 2015, 2:10pm UTC](https://forums.fusetools.com/t/not-handled-onnewall-error/4494 "2015-09-21T14:10:33Z")\
**Posts on this page:** 4\
**Page:** 1

<div class="post-metadata">

**Author:** ![Juani\_Serra](https://yyz1.discourse-cdn.com/flex035/user_avatar/forums.fusetools.com/juani_serra/32/463_2.png) [@Juani\_Serra](https://forums.fusetools.com/u/Juani_Serra)\
**Post date:** [September 21, 2015, 2:10pm UTC](https://forums.fusetools.com/t/not-handled-onnewall-error/4494/1 "2015-09-21T14:10:33Z")

</div>

I’m using `<Match>` and `<Case>` in the .ux and now it shows me that error.

This is the code:

```auto
<Image ux:Class="square">
   <MultiDensityImageSource>
     <FileImageSource File="images/square.png" Density="1"/>
     <FileImageSource File="images/square@2x.png" Density="2"/>
     <FileImageSource File="images/square@3x.png" Density="3"/>
   </MultiDensityImageSource>
 </Image>
 <Image ux:Class="circle">
   <MultiDensityImageSource>
     <FileImageSource File="images/circle.png" Density="1"/>
     <FileImageSource File="images/circle@2x.png" Density="2"/>
     <FileImageSource File="images/circle@3x.png" Density="3"/>
   </MultiDensityImageSource>
 </Image>
 .
 .
 .

 <Panel>
   <Match Value="{image}">
    <Case String="square">
      <square StretchMode="PixelPrecise" />
    </Case>
    <Case String="circle">
      <circle StretchMode="PixelPrecise" />
    </Case>
   </Match>
 </Panel>

```

Thanks!

---

<div class="post-metadata">

**Author:** ![Anders\_Lassen](https://yyz1.discourse-cdn.com/flex035/user_avatar/forums.fusetools.com/anders_lassen/32/522_2.png) [@Anders\_Lassen](https://forums.fusetools.com/u/Anders_Lassen)\
**Post date:** [September 21, 2015, 2:36pm UTC](https://forums.fusetools.com/t/not-handled-onnewall-error/4494/2 "2015-09-21T14:36:27Z")

</div>

Hi!

Thanks for reporting this.

This is a bug that has now been fixed. A temp work-around until you get the next release is to make sure `image` always has an initial value, e.g.

```auto
var image = Observable("square");

```

---

<div class="post-metadata">

**Author:** ![Pieter\_Fouche](https://avatars.discourse-cdn.com/v4/letter/p/71e660/32.png) [@Pieter\_Fouche](https://forums.fusetools.com/u/Pieter_Fouche)\
**Post date:** [January 7, 2016, 5:22pm UTC](https://forums.fusetools.com/t/not-handled-onnewall-error/4494/3 "2016-01-07T17:22:37Z")

</div>

Hi, I also got this error and changed my code so that the Observeable have an initail value:

![file](https://s3.us-east-2.amazonaws.com/fuse-legacy-forum-assets/ITKRJSmxb1Cv-legacy-files-cV9BTSZH97UWakNz-VWI7XMVHRJZwnJfBQNIeQ2M5.png)

then I say: ![file](https://s3.us-east-2.amazonaws.com/fuse-legacy-forum-assets/Ee6Os9XwQkzf-legacy-files-WEvr6bgUGNIwH0d0-dEQ6vjEJgBHgjzEm7fCZKsJT.png)

I have a listview and in each item i have:

 ![file](https://s3.us-east-2.amazonaws.com/fuse-legacy-forum-assets/ViJE9vgwZzdX-legacy-files-qu1LFSiWW6XyCZqj-zuvxaMsB6zt1YMZatpe4UWu-.png)

Then I get the following error: Not handled : OnAdd

If I bind the item text to a normal property of my message, it works it works fine.

---

<div class="post-metadata">

**Author:** ![chiztorismo](https://yyz1.discourse-cdn.com/flex035/user_avatar/forums.fusetools.com/chiztorismo/32/587_2.png) [@chiztorismo](https://forums.fusetools.com/u/chiztorismo)\
**Post date:** [March 16, 2016, 12:06pm UTC](https://forums.fusetools.com/t/not-handled-onnewall-error/4494/4 "2016-03-16T12:06:25Z")

</div>

> **Pieter Fouché wrote:**
> 
> Hi, I also got this error and changed my code so that the Observeable have an initail value:
> 
> ![file](https://canada1.discourse-cdn.com/flex035/uploads/fusetools1/original/2X/7/7b38403c935aaf1eeebb4082971a75648109a9c2.png)
> 
> then I say: ![file](https://canada1.discourse-cdn.com/flex035/uploads/fusetools1/original/2X/a/a6dd83d90539b24f6a3b260e4d58c64455471689.png)
> 
> I have a listview and in each item i have:
> 
> ![file](https://canada1.discourse-cdn.com/flex035/uploads/fusetools1/original/2X/9/9525273dcc5d91f8c071e3d680e39f864a9a812e.png)
> 
> Then I get the following error: Not handled : OnAdd
> 
> If I bind the item text to a normal property of my message, it works it works fine.

Where you able to solve the problem?