Tree is not rendered when is not in active tab

[jgolebiewski]

Angular version: 4.0.1
TreeComponent version: 3.2.4

If tree is not on the first tab (angular material) then is not rendered - tree-node-collection element is empty - otherwise works fine.

[ghost]

Facing the same issue with Angular4 Support changes.

[Gillardo]

I agree this is not working again. I experienced this here #227

[LeahPike]

Here is an example demonstrating the issue:

TreeExample.zip

[michaelkleinhenz]

Similar issue here. With Angular 4.0.1 and 3.2.4, the tree is not rendering. With 3.2.3, it is working fine. I have this behaviour on an active tab/view as well.

[Gillardo]

@500tech-user any news on this?? I added example to show issue

[dhilgarth]

For me this is happening when the tree is in a bootstrap modal dialog. Reverting to 3.2.3 fixed it for me

[adamkleingit]

OK I did 2 things:

1. Solve this automatically for trees not using virtual scroll
2. For trees using virtual scroll - need to call sizeChanged() on tree component if it became visible or changed it's size (for example when switching to the tab, or displaying a modal).

For example if using with bootstrap tabs:

  <tab heading="Tab 2" (select)="onSelectTab()">

  onSelectTab() {
    setTimeout(() => {
      this.treeComponent.sizeChanged();
    });
  }

Will be released in coming version

[adamkleingit]

Fixed in 3.3.0

[adrian-mitangi]

Hi,
When will this be available on npm? Right now the latest is 3.3.1