I am a newbie programming in SAP UI5, and using the sap.m.Tree object I have had the need to access some of its properties from the view. But I think this is not possible without making changes in the model.
The tree object allows to feed it with a JSONModel that has nodes in the form of hierarchy, it is only necessary to relate parent and child in a very simple type structure:
{
"text": "Node1",
"nodes": [
{
"text": "Node1-1",
"nodes":[ "..." ]
}
]
}
Once the tree is created, the component generates extra information such as whether the element is a leaf (it has no children), whether in which level the item is, etc. data that I do not have in the model.
At the time of using it in the view, in this way
<Tree id="Tree" items="{/}">
<StandardTreeItem title="{text}" mode="Active"/>
</Tree>
I need, for example, to change mode from "Active" to "Navigation" only for nodes that are leaf, but I think it is not possible to access the sap.m.StandardTreeItem own methods like isLeaf(), isTopLevel() or getLevel().
My idea was to use it in an expression like
<StandardTreeItem title="{text}" mode="{= ${this.isLeaf()} ? 'Navigation' : 'Active' }" />
I also tried with a formatter but I think the only thing it passes as a parameter is the value of the field.
Is there any way to do this? Or the only way is that the model has already calculated an attribute with "leaf": true, when it is leaf?
