el-tree增加虚拟滚动后,node-expand不触发,去掉虚拟(不传height)就正常触发

[sinkxy]

Describe the bug

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Screenshots

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To Reproduce

Steps to reproduce the behavior:

1. Go to '...'
2. Click on '....'
3. Scroll down to '....'
4. See error

Expected behavior

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environment information

• Version [e.g. 22]
• OS: [e.g. iOS]
• Browser [e.g. chrome, safari]

[konnga]

请问你解决这个问题了吗？

[ab690257072]

可能作者忘了实现这个功能：

/* tree-virtual-node.vue */
props: {
  // ...
  onNodeExpand: Function
},
/* mixin/node.js */
handleExpandIconClick() {
  // ...
  if (this.expanded) {
    // ...
  } else {
    // ...
    /* add this line. */
    this.onNodeExpand && this.onNodeExpand(node.data, node, this);
  }
},

[konnga]

可能作者忘了实现这个功能：

/* tree-virtual-node.vue */
props: {
  // ...
  onNodeExpand: Function
},
/* mixin/node.js */
handleExpandIconClick() {
  // ...
  if (this.expanded) {
    // ...
  } else {
    // ...
    /* add this line. */
    this.onNodeExpand && this.onNodeExpand(node.data, node, this);
  }
},

害，我也加了这个代码，点击展开，依然没有出现子节点