treeview的Checkbox使用

[快意一剑]

在treeview控件中，在选择根节点并设置checked = true,使得这个根节点下所有子节点都设置checked = true？

[fellowcheng]

 <script type="text/javascript">

        function OnTreeNodeChecked(evt) {
            var objNode = evt.srcElement ? evt.srcElement : evt.target;

            if (objNode.checked == true) {
                setParentChecked(objNode);
                var objID = objNode.getAttribute("ID");
                var objID = objID.substring(0, objID.indexOf("CheckBox"));
                var objParentDiv = document.getElementById(objID + "Nodes");
                if (objParentDiv != null && objParentDiv != "undefined") {
                    setChildChecked(objParentDiv);
                }
            }
            else {
                var objID = objNode.getAttribute("ID");
                var objID = objID.substring(0, objID.indexOf("CheckBox"));
                var objParentDiv = document.getElementById(objID + "Nodes");
                if (objParentDiv != null && objParentDiv != "undefined") {
                    setChildUnChecked(objParentDiv);
                }
            }

            if (objNode.tagName && objNode.tagName != "INPUT") {
                if (objNode.tagName == "IMG") {
                    return true;
                }
                else {
                    if (window.event) {
                        window.event.returnValue = false;
                        return false;
                    }
                    else {
                        evt.preventDefault();
                        evt.stopPropagation();
                    }
                }
            }
        }

        function public_GetParentByTagName(element, tagName) {
            var parent = element.parentNode;
            var upperTagName = tagName.toUpperCase();

            while (parent && (parent.tagName.toUpperCase() != upperTagName)) {
                parent = parent.parentNode ? parent.parentNode : parent.parentElement;
            }
            return parent;
        }

        function setParentChecked(objNode) {
            var objParentDiv = public_GetParentByTagName(objNode, "div");
            if (objParentDiv == null || objParentDiv == "undefined") {
                return;
            }
            var objID = objParentDiv.getAttribute("ID");
            objID = objID.substring(0, objID.indexOf("Nodes"));
            objID = objID + "CheckBox";
            var objParentCheckBox = document.getElementById(objID);
            if (objParentCheckBox == null || objParentCheckBox == "undefined") {
                return;
            }
            if (objParentCheckBox.tagName != "INPUT" && objParentCheckBox.type == "checkbox")
                return;
            objParentCheckBox.checked = true;
            setParentChecked(objParentCheckBox);
        }

        function setChildUnChecked(divID) {
            var objchild = divID.children;
            var count = objchild.length;
            for (var i = 0; i < objchild.length; i++) {
                var tempObj = objchild[i];
                if (tempObj.tagName == "INPUT" && tempObj.type == "checkbox") {
                    tempObj.checked = false;
                }
                setChildUnChecked(tempObj);
            }
        }

        function setChildChecked(divID) {
            var objchild = divID.children;
            var count = objchild.length;
            for (var i = 0; i < objchild.length; i++) {
                var tempObj = objchild[i];
                if (tempObj.tagName == "INPUT" && tempObj.type == "checkbox") {
                    tempObj.checked = true;
                }
                setChildChecked(tempObj);
            }
        }

        function selectItem(ccode, ck, hdid) {
            var codes = $("#" + hdid).val();
            if (ck.checked) {
                if (codes.length == 0)
                    $("#" + hdid).val(ccode);
                else if (codes.indexOf(ccode) < 0) {
                    $("#" + hdid).val(codes + "," + ccode);
                }
            }
            else {
                if (codes == ccode)
                    codes = "";
                else if (codes.indexOf("," + ccode + ",") > 0) {
                    codes = codes.replace("," + ccode + ",", ",");
                }
                else if (codes.indexOf(ccode + ",") == 0) {
                    codes = codes.replace(ccode + ",", "");
                }
                else if (codes.indexOf("," + ccode) == codes.length - ccode.toString().length - 1) {
                    codes = codes.replace("," + ccode, "");
                }
                $("#" + hdid).val(codes);
            }
        }

    </script>

[fellowcheng]

后台

tvModels.Attributes.Add("onclick", "OnTreeNodeChecked(event)");

[youliny]

恩。
楼上正确。

[fangxiaofelix]

有了，正解