Tree.DirectoryTree - defaultExpandAll does not work when using treeData

[pfcodes]

• I have searched the issues of this repository and believe that this is not a duplicate.

Reproduction link

https://codepen.io/pfcodes/pen/WNNvpOP

Steps to reproduce

Use: <Tree.DirectoryTree treeData={[]} defaultExpandAll></Tree.DirectoryTree> instead of <Tree.DirectoryTree defaultExpandAll>{TreeNode[]}</Tree.DirectoryTree>

What is expected?

All tree nodes should be expanded.

What is actually happening?

Tree nodes are not expanded.

Environment	Info
antd	3.23.6
React	react 16.10.2
System	macOS 10.14.6
Browser	Version 77.0.3865.90 (Official Build) (64-bit)

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I needed to recursively create TreeNodes. The DirectoryTree component does not allow any component other than TreeNode to be used as a child. Since I could not use custom components (i.e., DirectoryNode/FileNode) that were output from a recursive function that first determines whether a node is a directory or file, I found treeData and used that instead. I noticed the bug then.

[kavience]

I have find the bug and I have make a new PR in #19148, can you take a look ? @afc163

[jeremypeters]

I'm experiencing this issue when the tree data is updated. When using defaultExpandAll={true} the tree is expanded, but when the tree data is updated, the tree collapses.

[jonathaninacio]

I'm experiencing this issue when the tree data is updated. When using defaultExpandAll={true} the tree is expanded, but when the tree data is updated, the tree collapses.

I had the same problem and realize it was because all keys in treedata has changed.
New nodes are collapsed by default, only the original ones (default) are expanded. But in tree data when all keys are different from the original one, the tree is replaced with a new one (so it's not the default tree anymore).

[blazephoenix]

Was this resolved for v4.x?

[calllpso]

you should to add a v-if condition, after that it will work
<a-tree v-if="treeData.length>0" :defaultExpandAll="true" :tree-data="treeData" > <!-- your code --> </a-tree>