ExtJS Tree点击选择节点,不展开/展开(三)

ExtJS Tree点击选择节点,不展开/展开(三)

 

实例讲解:点击触发域(Ext.form.TriggerField)三角按钮,弹出树面板窗口,并将触发域中的内容在树面板中选中,并展开选中节点的父目录

 

对应:ExtJS Tree刷新后只选择节点,不展开(二)

 

一.选中节点,不展开:
1.创建Tree:

//1.定义根节点:主管部门
var departRoot = new Ext.tree.AsyncTreeNode({
	text:"主管部门",
	draggable:false,
	expanded:true,	//节点展开
	id:'depart-root'
});
//2.定义子节点数据加载器
var dloader = new Ext.tree.TreeLoader({
	dataUrl:'getTree.base?doType=getDTreeByGrade&dtype=0',
	baseParams :{pid:''},
	baseAttrs: { uiProvider: Ext.tree.TreeCheckNodeUI } //添加 uiProvider 属性    
});
//3.获取主管部门子节点数据
dloader.on("beforeload",function(treeLoader, node){
	treeLoader.baseParams.pid = node.id;
},this);

//4.定义树面板,显示节点数据
var departTree = new Ext.tree.TreePanel({
	id:'departTree',
	root: departRoot, 
	checkModel: 'multiple',   
	animate:false,
	onlyLeafCheckable: true,
	enableDD:false,    
	border:false,    
	rootVisible:true,  
	autoScroll :true,
	lines: false,
  	loader:dloader,
	tbar:[
	      {
	    	  xtype:'label',
	    	  text:"文件号:"
	      },{
	    	  xtype:"textfield",
	    	  id:"serchFor5",
	    	  allowBland:true,
	    	  width:120
	      },{
	    	  text:"查找",
	    	  iconCls:"filter",
	    	  handler : search
	      }
  	]
});

 

2.创建触发域:

var departTg = new Ext.form.TriggerField({
	fieldLabel:'主管部门',
	width:250,
	readOnly: true,
	id:'departTg',
	name:'departTg',
	emptyText:"请选择主管部门"
 });

 

3.创建窗口:

var departWin = new Ext.Window({
	title:'主管部门',
	width:300,
	height:260,
	autoScoll:true,
	layout:'fit',
	closeAction:'hide',
	collapsible:true,
	items:[departTree], 
	buttons:[{
			text:"确定",
			handler:function(){
				var node = departTree.getChecked();
				if(node.length == 0){
					Ext.Msg.alert("系统提示","请选择主管部门");
					return;
				}
				var name = new Array();
				var value = new Array();
				dids  = new Array();
				for (var i = 0; i < node.length; i++) {
					dids.push(node[i].id);
					name.push(node[i].text);
					value.push(node[i].id);
				}
				departTg.setValue(name.join());//给触发域赋值
				Ext.getCmp("departid").setValue(value.join());
				departWin.hide();
			}
		},{
			text:"取消",
			handler:function(){
				departWin.hide();
			}
		}
    ]
});

 

4.增加单击事件和选择事件:

//选中目录同时展开目录
departTree.on("checkchange",function(node,checked){
	if(checked){
		node.expand();
	}
});
//单击时,若是目录则展开或收缩,若是子节点则选中或不选中
departTree.on("click",function(node){
	if(!node.isLeaf()){
		node.toggle();
	}
	else{
    	node.ui.toggleCheck();
    }
});

 

5.单击触发域打开树窗口并显示勾选项:

departTg.onTriggerClick = departTrigFun;
function departTrigFun(e){
	departWin.show();
	var childNodes = departRoot.childNodes;
	if(childNodes.length > 0) {
		showCheckDeparts(childNodes);
	}
	else {
		loadDepart();
	}
}
//加载树并勾选对应项
function loadDepart(){
	dloader.on("load",function(treeLoader,node){
		showCheckDeparts(node);
	});
}
//勾选对应项
function showCheckDeparts(childNodes){
	//先清楚全部勾选项
	for (var i = 0; i < childNodes.length; i++) {
		childNodes[i].ui.toggleCheck(false);
	}
	//将触发域中的内容分割为一个数组
	departs = departTg.getValue();
	childNodes = departRoot.childNodes;
	var departArr = null;
	if(departs != null) {
		departArr = departs.split(",");
	}
	//循环对比,相对应的进行勾选
	if(departArr != null && departArr.length > 0) {
		for (var j = 0; j < childNodes.length; j++) {
			var text = childNodes[j].text;
			for (var i = 0; i < departArr.length; i++) {
				if(departArr[i] != text){
					continue;
				}
				childNodes[j].ui.toggleCheck(true);
			}
		}
	}
}

 

6.图示:

 
ExtJS Tree点击选择节点,不展开/展开(三)
 
 

二.选中节点,并展开:
1.创建Tree:

//1 定义根节点  
var auditRoot = new Ext.tree.AsyncTreeNode({  
    id:'tree-root',  
    text:"部门",  
    expanded:true,    //根节点默认展开(注意和TreePanel中的rootVisible:true的联系)
    draggable:false   //根节点不可拖动  
});  
//2 定义节点数据加载器  
var auditLoader = new Ext.tree.TreeLoader({  
    dataUrl:'getKeshiUsersByGrade.up?doType=getKeshiUsersByGrade',  //此处不是url,和Store的Proxy不同  
    baseParams :{pid:''},  
    baseAttrs:{uiProvider:Ext.tree.TreeCheckNodeUI} //必须有该项,不然树节点无法出现选择框  
});
//3 定义数据加载前触发方法  
auditLoader.on("beforeload",function(treeLoader,node){  
	auditRoot.setText(dname);
    treeLoader.baseParams.pid = node.id;  
    treeLoader.baseParams.did = did;  
},this);  

//4 定义树形面板,用于显示数据  
var auditTree = new top.Ext.tree.TreePanel({    /**注意top!!!*/  
    root:auditRoot,      //根节点  
    loader:auditLoader,  //数据加载器  
    checkModel:"single", //复选框只能单选,多选为:multiple,级联:cascade  
    rootVisible:true,    //显示根节点  
    autoScroll:true,      
    animate:false,  
    enableDD:false,      //不允许子节点拖动  
    onlyLeafCheckable:true,  
    width:250
});  

 

2.创建触发域:

var selectedAuditRow;//定义全局变量,获取点击列表某一行时通过复选框获得的行号。  
     
var auditTrigger = new Ext.form.TriggerField({  
     emptyText:"请选择...",  
     allowBlank:false,  
     readOnly:true
 });

 

3.创建窗口:

var auditTreeWin = new top.Ext.Window({    /**注意top!!!*/  
    title:"用户选择",  
    layout:"fit",  
    closeAction:"hide",  
    modal:true,  
    width:250,  
    height:250,  
    items:auditTree,  
    buttons:[  
        {  
            text:"确定",  
            handler:function(e){  /*点击选择树节点并将值显示在触发域的方法!*/
                var node = auditTree.getChecked();    //获取被选中的树节点  
                if(!node || node.length < 1){  
                	top.Ext.Msg.alert("系统提示","请选择科室用户!");  
                    return;  
                }  
                var name = new Array();  
                var value = new Array();  
                for (var i = 0; i < node.length; i++) {  
                    name.push(node[i].text);  
                    value.push(node[i].id);  
                }  
                var data = selectedAuditRow.data;    //获取选择的行的Record的Data数据对象  
                /*data["auditUserId"]= name.join(); —— —— 此处用这种方式给触发域赋值出错!!!必须用下面的方式!!! */    
                auditTrigger.setValue(name.join());  
                auditTreeWin.hide();  
            }  
        },{  
            text:"取消",  
            handler:function(){  
                auditTreeWin.hide();  
            }  
        }  
    ]  
});  

 

4.增加单击事件和选择事件:

//选中目录同时展开目录
auditTree.on("checkchange",function(node,checked){
	if(checked){
		node.expand();
	}
});
//单击时,若是目录则展开或收缩,若是子节点则选中或不选中
auditTree.on("click",function(node){
	if(!node.isLeaf()){
		node.toggle();
	}
	else{
    	node.ui.toggleCheck();
    }
});

 

5.单击触发域打开树窗口并显示勾选项:

/* 单击触发域打开树窗口并显示勾选项 */
auditTrigger.onTriggerClick = clickTriggerFun;
function clickTriggerFun(e){
	auditTreeWin.show();
	var parentNodes = auditRoot.childNodes;
	if(parentNodes.length > 0) {
		showCheckedNode(parentNodes);
	}
	else {
		loadTree();//节点为0,则先加载树
	}
}

/* 加载科室用户并勾选对应项 */
function loadTree(){
	auditLoader.on("load",function(treeLoader,node){
		showCheckedNode(node.childNodes);
	});
}

/* 勾选对应的选中项,并展开选中项的父目录 */
function showCheckedNode(parentNodes){
	//先展开再收缩父节点,让子节点充分显示
	for (var i = 0; i < parentNodes.length; i++) {
		parentNodes[i].expand();
		parentNodes[i].collapse();
	}
	//先循环清楚全部勾选项
	for (var i = 0; i < parentNodes.length; i++) {
		var childNodes = parentNodes[i].childNodes;
		for (var j = 0; j < childNodes.length; j++) {
			childNodes[j].ui.toggleCheck(false);
		}
	}
	//将触发域中的内容字符串分割为一个数组
	var tgValue = auditTrigger.getValue();
	childNodes = auditRoot.childNodes;
	var checkedArr = null;
	if(tgValue != null) {
		checkedArr = tgValue.split(",");
	}
	//循环对比,相对应的进行勾选
	if(checkedArr != null && checkedArr.length > 0) {
		for (var i = 0; i < parentNodes.length; i++) {
			var childNodes = parentNodes[i].childNodes;
			for (var j = 0; j < childNodes.length; j++) {
				var text = childNodes[j].text;
				for (var k = 0; k < text.length; k++) {
					if(checkedArr[k] == text) {
						childNodes[j].ui.toggleCheck(true);//勾选
						childNodes[j].parentNode.expand();//展开父节点
					}
				}
			}
		}
	}
}

 

注意:选中节点同时展开其父目录
ExtJS Tree点击选择节点,不展开/展开(三)
 

6.图示:
ExtJS Tree点击选择节点,不展开/展开(三)


ExtJS Tree点击选择节点,不展开/展开(三)
 
 

注意区别:
1.第一个只有一级目录,子节点都在一级目录下,传参用childNodes
ExtJS Tree点击选择节点,不展开/展开(三)
 
2.第二个有二级目录,子节点都在第二级目录下,传参用parentNodes
ExtJS Tree点击选择节点,不展开/展开(三)
 

 

 

 

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