• 步步为营103-ZTree 二级联动


    1:添加引用

       <%--流程类别多选--引用js和css文件--开始--%>
        <link rel="stylesheet" href="../css/zTreeStyle/demo.css?version=<%=VersionNo %>>" type="text/css">
        <link rel="stylesheet" href="../css/zTreeStyle/zTreeStyle.css" type="text/css">
       
        <%--流程类别多选--引用js和css文件--结束--%>
    1 添加引用

    2:js脚本

        <%--流程类别多选--引用js脚本--开始--%>
        <script type="text/javascript">
            <!--
        var setting = {
            check: {
                enable: true,
    
                chkboxType: { "Y": "s", "N": "ps" }
            },
            view: {
                dblClickExpand: false
            },
            data: {
                simpleData: {
                    enable: true
                }
            },
            callback: {
                beforeClick: beforeClick,
                onCheck: onCheck
            }
        };
    
        var zNodes;
        var selectIds = "";
        function beforeClick(treeId, treeNode) {
            var zTree = $.fn.zTree.getZTreeObj("treeProcessCategory");
            zTree.checkNode(treeNode, !treeNode.checked, null, true);
            return false;
        }
    
        function onCheck(e, treeId, treeNode) {
            var zTree = $.fn.zTree.getZTreeObj("treeProcessCategory"),
            nodes = zTree.getCheckedNodes(true),
            v = "";
            selectIds = "";
            for (var i = 0, l = nodes.length; i < l; i++) {
                v += nodes[i].name + ",";
                selectIds += nodes[i].id + ",";
            }
            if (v.length > 0) v = v.substring(0, v.length - 1);
            if (selectIds.length > 0) {
                selectIds = selectIds.substring(0, selectIds.length - 1);
            }
            var cityObj = $("#dropParProcessCategory");
            cityObj.attr("value", v);
            //给隐藏域赋值
            setHidDropParProcessCategoryIds(v, selectIds);
            selProcessCatergoryChange();
            //清空二级树
            clearSubProcess();
        }
        function showMenu() {
            var cityObj = $("#dropParProcessCategory");
            var cityOffset = $("#dropParProcessCategory").offset();
            $("#menuProcessCategory").css({ left: cityOffset.left + "px", top: cityOffset.top + cityObj.outerHeight() + "px" }).slideDown("fast");
    
            $("body").bind("mousedown", onBodyDown);
            checkedNodesByProcessCategoryIds();
        }
        function hideMenu() {
            $("#menuProcessCategory").fadeOut("fast");
            $("body").unbind("mousedown", onBodyDown);
        }
        function onBodyDown(event) {
            if (!(event.target.id == "menuBtn" || event.target.id == "dropParProcessCategory" || event.target.id == "menuProcessCategory" || $(event.target).parents("#menuProcessCategory").length > 0)) {
                hideMenu();
            }
        }
    
    
        $(document).ready(function () {
            zNodes = eval("(" + $("#<%=hidDropParProcessCategoryDataSource.ClientID %>").val() + ")");
            $.fn.zTree.init($("#treeProcessCategory"), setting, zNodes);
            $.fn.zTree.init($("#treeDemo"), setting2, zNodes2);       
        });
            function setHidDropParProcessCategoryIds(v, selectIds) {
                $("#<%=hidDropParProcessCategoryNames.ClientID %>").val(v, selectIds);
                $("#<%=hidDropParProcessCategoryIds.ClientID %>").val(selectIds);
            }
        </script>
    
        <script type="text/javascript">
    
            var setting2 = {
                check: {
                    enable: true,
                    chkboxType: { "Y": "", "N": "" }
                },
                view: {
                    dblClickExpand: false
                },
                data: {
                    simpleData: {
                        enable: true
                    }
                },
                callback: {
                    beforeClick: beforeClick2,
                    onCheck: onCheck2
                }
            };
    
            var zNodes2 = [];
            var selectIds2 = "";
            function beforeClick2(treeId, treeNode) {
                var zTree = $.fn.zTree.getZTreeObj("treeDemo");
                zTree.checkNode(treeNode, !treeNode.checked, null, true);
                return false;
            }
    
            function onCheck2(e, treeId, treeNode) {
                var zTree = $.fn.zTree.getZTreeObj("treeDemo"),
                nodes = zTree.getCheckedNodes(true),
                v = "";
                selectIds2 = "";
                for (var i = 0, l = nodes.length; i < l; i++) {
                    v += nodes[i].name + ",";
                    selectIds2 += nodes[i].id + ",";
                }
                if (v.length > 0) { v = v.substring(0, v.length - 1); }
                if (selectIds2.length > 0) {
                    selectIds2 = selectIds2.substring(0, selectIds2.length - 1);
                }
                var cityObj = $("#dropSubProcess");
                cityObj.attr("value", v);
                //给隐藏域赋值
                SetValueToHidd(v, selectIds2)
            }
            function showMenu2() {
                var cityObj = $("#dropSubProcess");
                var cityOffset = $("#dropSubProcess").offset();
                $("#menuContent").css({ left: cityOffset.left + "px", top: cityOffset.top + cityObj.outerHeight() + "px" }).slideDown("fast");
    
                $("body").bind("mousedown", onBodyDown2);
                checkedNodesBySubProcessIds();
            }
            function hideMenu2() {
                $("#menuContent").fadeOut("fast");
                $("body").unbind("mousedown", onBodyDown2);
            }
            function onBodyDown2(event) {
                if (!(event.target.id == "menuBtn" || event.target.id == "dropSubProcess" || event.target.id == "menuContent" || $(event.target).parents("#menuContent").length > 0)) {
                    hideMenu2();
                }
            }
            //清空二级树
            function clearSubProcess() {
                $("#<%=hidSubProcessNames.ClientID %>").val("");
                $("#<%=hidSubProcess.ClientID %>").val("");
                $("#<%=dropSubProcess.ClientID %>").val("");
            }
        </script>
        <%--流程类别多选--引用js脚本--结束--%>
    设置两个js脚本

    3:页面刷新后状态保持

         <%--流程类别多选--查询后再次刷新页面,选中已选中的值--结束--%>
        <script type="text/javascript">
            function checkedNodesByProcessCategoryIds() {
                var zTree = $.fn.zTree.getZTreeObj("treeProcessCategory");
                if (zTree == null) {
                    return;
                }
                var processCategoryIds = $("#<%=hidDropParProcessCategoryIds.ClientID %>").val()
                var ids = processCategoryIds.split(',');
                for (var i = 0; i < ids.length; i++) {
                    var node = zTree.getNodeByParam("id", ids[i], null);
                    if (node != null) {
                        node.checked = true;
                        zTree.updateNode(node);
                    }
                }
            };
    
            function checkedNodesBySubProcessIds() {
                var zTree = $.fn.zTree.getZTreeObj("treeDemo");
                if (zTree==null) {
                    return;
                }
                var subProcessIds = $("#<%=hidSubProcess.ClientID %>").val()
                var ids = subProcessIds.split(',');
                for (var i = 0; i < ids.length; i++) {
                    var node = zTree.getNodeByParam("id", ids[i], null);
                    if (node != null) {
                        node.checked = true;
                        zTree.updateNode(node);
                    }
                }
            };
            
        </script>
       
         <%--流程类别多选--查询后再次刷新页面,选中已选中的值--结束--%>
    查询后再次刷新页面,选中已选中的值

    4:二级联动

         function selProcessCatergoryChange() {
                $.ajax({
                    type: "GET",
                    url: "/Services/RetrieveMDSService.aspx",
                    dataType: "json",
                    cache: true,
                    data: { RetrieveType: "SetParProcessCategorySelectChangeZTree", strId: $("#<%=hidDropParProcessCategoryIds.ClientID %>").val() },
                    success: function (returnValue) {
                        var vhtml = new Array();
    
                        var jsonList = returnValue;
    
                        for (var i = 0; i < jsonList.length; i++) {
                            //{id:3, pId:0, name:"上海"},
                            if (jsonList[i].ProcessID != "undefined" && jsonList[i].ProcessID != "") {
                                var eJson = '{id: ' + jsonList[i].ProcessID + ', pId:0, name:"' + jsonList[i].ProcessName + '"}';
    
                                vhtml.push(eval("(" + eJson + ")"));
                            }
                        }
                        zNodes2 = vhtml;
                        $.fn.zTree.init($("#treeDemo"), setting2, zNodes2);
                    },
                    error: function (data, textStatus, errorThrown) {
                    }
                });
            }
    
            function SetValueToHidd(v, subProcessIDs) {
                document.getElementById("<%= hidSubProcessNames.ClientID%>").value = v;
                document.getElementById("<%= hidSubProcess.ClientID%>").value = subProcessIDs;
            }
    构建2级联动
        private void SetParProcessCategorySelectChangeZTree()
            {
                //20140610 Eva Add:设置多语言
                string lang = this.GetCurrentLanguage();
                StringBuilder builder = new StringBuilder();
                builder.Append("[");
                builder.Append("{");
                if (lang == "en-us")
                {
                    builder.AppendFormat(""ProcessName":"{0}",", "All");
                }
                else
                {
                    builder.AppendFormat(""ProcessName":"{0}",", "全部");
                }
    
                builder.AppendFormat(""ProcessID":"{0}"", "");
                builder.Append("},");
                if ((base.Request.QueryString["strId"] != null) && (base.Request.QueryString["strId"].Trim() != ""))
                {
                    string strIds = base.Request.QueryString["strId"].Trim();
                    string whereStr = String.Format(@" select a.sort,b.OrderNo,a.sort,a.* from ProcessPublish a inner join ProcessCategory b on b.ProcessCategoryID = a.ProcessCategoryID and b.IsUse <> 0 
    where a.ProcessCategoryID in ({0})  and  a.isAvailable =1
    Order by b.OrderNo,a.sort", strIds);
                    List<IProcessPublish> list = WFModelManager.ProcessPublishDAO.RetrieveListByWhereNoOrder(whereStr);
                    if ((list != null) && (list.Count > 0))
                    {
                        foreach (IProcessPublish publish in list)
                        {
                            builder.Append("{");
                            if (lang == "en-us")
                            {
                                builder.AppendFormat(""ProcessName":"{0}",", publish.ProcessEnglishName);
                            }
                            else
                            {
                                builder.AppendFormat(""ProcessName":"{0}",", publish.ProcessName);
                            }
    
                            builder.AppendFormat(""ProcessID":"{0}"", publish.ProcessID);
                            builder.Append("},");
                        }
                    }
                }
                if (builder.ToString().EndsWith(","))
                {
                    builder = builder.Remove(builder.Length - 1, 1);
                }
                builder.Append("]");
                base.Response.Write(builder.ToString());
                base.Response.End();
            }
    RetrieveMDSService.aspx

    5:html代码

      <asp:HiddenField runat="server" ID="hidDropParProcessCategoryIds" />
        <asp:HiddenField runat="server" ID="hidDropParProcessCategoryNames" />
         <asp:HiddenField ID="hidSubProcessNames" runat="server" Value="" />
         <asp:HiddenField ID="hidSubProcess" runat="server" Value="" />
        <asp:HiddenField runat="server" ID="hidDropParProcessCategoryDataSource" />
    
    
    
      <td>
                                                    <asp:TextBox ID="dropParProcessCategory" ClientIDMode="Static" runat="server" ReadOnly="true" onfocus="showMenu();"></asp:TextBox><asp:TextBox ID="dropSubProcess" ClientIDMode="Static" runat="server" ReadOnly="true" onfocus="showMenu2();"></asp:TextBox>
                                                     
                                                </td>
    
    
        <%--流程类别多选--弹出层--开始--%>
        <div id="menuProcessCategory" class="menuProcessCategory" style="display: none; position: absolute;">
            <ul id="treeProcessCategory" class="ztree" style="margin-top: 0;  180px; height: 300px;"></ul>
        </div>
    
        <div id="menuContent" class="menuContent" style="display: none; position: absolute;">
            <ul id="treeDemo" class="ztree" style="margin-top: 0;  500px; height: 300px;"></ul>
        </div>
    
        <%--流程类别多选--弹出层--结束--%>
    html代码

    6:后台代码

        private void InitDropParProcessCategory(IList<IProcessCategory> list)
            {
    
                //    { id: 1, pId: 0, name: "北京" },
                //{ id: 2, pId: 0, name: "天津" },
                //{ id: 3, pId: 0, name: "上海" },
                //{ id: 6, pId: 0, name: "重庆" },
                StringBuilder sb = new StringBuilder();
                if (list != null && list.Count > 0)
                {
                    sb.Append("[");
    
                    for (int i = 0; i < list.Count; i++)
                    {
    
                        if (list[i] != list[list.Count - 1])
                        {
                            sb.Append("{ id: " + list[i].ProcessCategoryID + ",  pId:  " + list[i].ParentCategoryID + ",  name: "" + list[i].ProcessCategoryName.Replace("", "") + "" },");
    
                        }
                        else
                        {
                            sb.Append("{ id: " + list[i].ProcessCategoryID + ",  pId:  " + list[i].ParentCategoryID + ",  name: "" + list[i].ProcessCategoryName.Replace("", "") + "" , open:true}");
                        }
                    }
                    sb.Append("] ");
                }
                hidDropParProcessCategoryDataSource.Value = sb.ToString();
            }
    创建一级目录数据源
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  • 原文地址:https://www.cnblogs.com/YK2012/p/8674509.html
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