Element: [Bug Report] Element Tree Data Table Selection Only Selects Parents

[godsmiless]

Element UI version

2.10.1

OS/Browsers version

win10/chrome-75

Vue version

2.6.10

Reproduction Link

https://codepen.io/bassb/pen/BXjLYv

Steps to reproduce

1.点击表格头部 全选复选框
2.表格数据只有父级被选中，树形子级未选中

What is Expected?

1.点击全选后，表格当前分页内所有行都选中
2.选中父级复选框后，该节点子级全部选中，

What is actually happening?

1.点击全选，只有父级 被选中，子级未选中
2.点击父级复选框，只有当前行选中，该节点下的子级未被选中

[element-bot]

Translation of this issue:

Element UI version

2.10.1

OS/Browsers version

Win10/chrome-75

Vue version

2.6.10

Reproduction Link

Https://codepen.io/bassb/pen/BXjLYv

Steps to reproduce

1. Click the Check Box at the Head of the Form

2. Only the parent of the table data is selected, and the tree child is not selected.

   What is Expected?

3. After clicking the full selection, all rows in the current tab are selected.

4. When the parent check box is selected, all the child levels of the node are selected.

What is actually happening?

1. Click on the full selection, only the parent is selected, and the child is not selected.

2. Click on the parent check box. Only the current row is selected, and the child under the node is not selected.

[ziyoung]

有类似的 issue 了。

[buyou0821]

有类似的 issue 了。

类似issue地址呢？看到相似的几个都直接被close了

[17881055]

地址呢

[dawwad]

Couldn't find the Similar Issue, if anyone can help with that?

or any proposed solution ?