## String treeNode.tId

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

The unique identifier of node.

Do not initialize or modify it, it is created by the zTree.

### String Format

tId rules: setting.treeId + "_" + zTree counter

### Examples of treeNode

#### 1. Get the first selected node's tId

    var treeObj = $.fn.zTree.getZTreeObj("tree");
    var sNodes = treeObj.getSelectedNodes();
    if (sNodes.length > 0) {
    	var tId = sNodes[0].tId;
    }