## Boolean setting.check.autoCheckTrigger

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

When node is automatically checked or unchecked, this parameter used to set to trigger 'beforeCheck / onCheck' callback. It is valid when [setting.check.enable = true & setting.check.chkStyle = "checkbox"]

1. If you set 'setting.check.chkboxType' to { "Y": "", "N": "" }, will not automatically checked or unchecked.

2. If you turn on the trigger and there are many more nodes, will affect the performance, because the check or uncheck node can cause many nodes to be automatically checked or unchecked, it will trigger a lot of callbacks, according to the need to decide whether to use this feature.

Default: false

### Boolean Format

true means: trigger callback

false means: don't trigger callback

### Examples of setting

#### 1. When node is automatically checked or unchecked, zTree trigger 'beforeCheck / onCheck' callback.

    var setting = {
    	check: {
    		enable: true,
    		autoCheckTrigger: true
    	}
    };
    ......