A workaround is to first upgrade the node to V6 before the conversion or expansion.
在转换或扩展之前,工作区首先将节点升级到版本6。
2
You don't need to actually include the children; the presence of a children property will indicate to the Tree that the node is expandable and an expansion icon will be included.
The corresponding mathematical model and DPSO solution algorithm for transmission network expansion planning are developed through the construction of extended node matrix and velocity matrix.