Weird Tree behavior

[Former Member]

Hello fellow developers,

my tree controls are displaying quite a strange behavior:

No matter on which node I click, the first one always gets expanded too! (And that's true for every level of the tree and the according first-level node)

I am filling my nodes dynamically via a context-supply-Function.

Does anyone has an idea on how to stop this annoying behavior?

Thanks a lot,

Maxi

[Former Member · Accepted solution]

Reason might be that the Tree automatically expands the node that has the lead selection. If you recreate the complete tree on every node selection and have set initializeLeadSelection=true, the path along the first node elements will be selected.

To avoid this, you could either set initializeLeadSelection=false or unset the lead selection after filling the tree.

Armin

[Former Member · Accepted solution]

Ha! Works like a charm! Armin, you're my personal hero! Thanks you!

[Former Member]

Hi ,

<b>expanded </b>is a property of the TreeNodeType. It might be possible that onSelect or onLoad your setting expanded property to true in the wrong node.

Check , if you are accessing the proper child node when you are setting this.

Regards

Bharathwaj

[Former Member]

Bharathwaj:

thanks for the answer.

In my 3-level tree "expanded" is on the upper two levels set to "false" (third level can't be expanded obviously ) , and I'm not touching it anywhere in the implementation..

[former_member365727]

Hi,

Set the tree property <i>isExpanded</i> to true, once you have expanded the corresponding node.

Regards

Srikanth

[Former Member]

Hi Srikanth,

thanks for you answer!

My tree isn't that dynamical I'm not expanding the nodes myself but leave that to Web Dynpro...

If the answer is still 'isExpanded', would you be so kind as to give me a hint on where excatly to apply that? The 'onAction' function of the concerning tree-element? 'onLoadChildren'? Somewhere entirely different?

Thanks a lot,

Maxi