## String setting.data.key.checked

### Overview[ depends on jquery.ztree.excheck js ]

The node data's attribute to save the checked state.

Default: "checked"

Please don't set the other node attribute which zTree used. (e.g., checkedOld)

### Examples of setting

#### 1. set the 'isChecked' attribute to save the checked state.

    var setting = {
    	data: {
    		key: {
    			checked: "isChecked"
    		}
    	}
    };
    ......