# Radio Operation

###### [ File Path: excheck/radio.html ]

- ## 1, Explanation of setting

  - Must set setting.check attributes, see the API documentation for more related contents.

  - group range of radio:
    within the same level within the whole tree

- ## 2, Explanation of treeNode

  - 1), If you need to initialize the node is checked, please set treeNode.checked attribute. See the API documentation for more related contents.
  - 2), If you need to initialize the node don't show radio, please set treeNode.nocheck attribute. See the API documentation for more related contents.
  - 3), If you need to change 'checked' to other attribute, please set setting.data.key.checked attribute. See the API documentation for more related contents.
  - 4), By the way, please see the API documentation for 'treeNode.checkedOld / getCheckStatus / check_Child_State / check_Focus'.