两种 ext.net treepanel 的子父节点联动的写法

第一种写法:

    
<Listeners>
  <CheckChange Fn="checkchange" />
</Listeners>

 var checkchange = function (node, checked) {
            checkParentNode(node.parentNode, checked);
            checkChildNode(node, checked);
        };
        var checkChildNode = function (node, checked) {
            if (node == undefined) {
                return;
            }
            node.data.checked = checked;
            node.triggerUIUpdate(checked);
            node.eachChild(function (child) {
                checkChildNode(child, checked);
            });
        };

        var checkParentNode = function (node, checked) {
            if (node == undefined) {
                return;
            }
            allUnchecked = 1;
            node.eachChild(function (child) {
                if (child.data.checked) {
                    allUnchecked = 0;
                }
            });
            if (allUnchecked == 1 || checked == true) {
                node.data.checked = checked;
                node.triggerUIUpdate(checked);
                checkParentNode(node.parentNode, checked);
            }
        };

第二种写法：

 
<Listeners>
  <CheckChange Fn="checkchange" />
</Listeners>

  var checkchange = function (node, checked) {
            if (checked) {
                checkParentNode(node.parentNode, checked);
            }
            checkChildNode(node, checked);
        };

        var checkChildNode = function (node, checked) {
            if (node == undefined) {
                return;
            }
            node.data.checked = checked;
            node.triggerUIUpdate(checked);
            node.eachChild(function (child) {
                checkChildNode(child, checked);
            });
        };

        var checkParentNode = function (node, checked) {
            if (node == undefined) {
                return;
            }
            node.data.checked = checked;
            node.triggerUIUpdate(checked);
            checkParentNode(node.parentNode);
        };