wex5笔记(view:58)

1.获取表单输入

var input1 = this.comp('input1').val();  // input1为xid

2.bind-visible动态显示
UI中

bind-visible="isBoxShow"

js中

var Model = function(){
    this.isBoxShow = justep.Bind.observable(false);
};
Model.prototype.showBox = function(event){
    this.isBoxShow.set(true);
};

3.页面内的数据共享
页面加载时候ajax获取到数据,提交表单时候需要用到,直接在define下定义变量

4.提示框

justep.Util.hint("操作成功");
justep.Util.hint('test', {
    "type" : "info",
    "delay" : 1000000,
    "position" : "middle",
    "style" : "background-image : -webkit-linear-gradient(top, #EF0A69 0, #EF0A69 100%);"//只需要把  #EF0A69 改成其他颜色即可
});

相关样式

.x-hint{
   font-size:28px;
   color:blue;
}

5.获取jquery对象

$(this.getElementByXid('modalBox')).show();

6.img标签

<img src="" alt="" xid="image1" bind-attr-src="$model.toUrl('./img/weixin.png')" style="width:40px;height:40px;"></img>
//图片路径转换
Model.prototype.toUrl = function(url){
    return url ? require.toUrl(url) : "";
};

7.页面中读取data中的数据

<label class="x-label" xid="label1" bind-text='$model.regData.label("userName")'/>   // 获取‘regData’data组件中'显示名称'部分的值

8.渲染列表
class="x-list-template"下的第一个节点为模板,其所有子节点根据数据进行循环

<div component="$UI/system/components/justep/list/list" data="settlementListData">
  <div class="x-list-template">
    <span bind-text="ref('id')"></span>
  </div>	
</div>

list组件的data属性和data组件xid的对应

<div component="$UI/system/components/justep/data/data" autoLoad="true" xid="settlementListData" idColumn="id" onCustomRefresh="getSettlementList">
  <column label="id" name="id" type="String" xid="xid3"></column>
</div>

js部分

Model.prototype.getSettlementList = function(event){
  var me = this;
		
  var url = 'Merchantapi/SortingApi/getSettlementList';
  var memberToken = localStorage.memberToken;
  var parameter = {
    memberToken: memberToken,
    status: 1
  };
		
  me.comp("settlementListData").clear();
  ajax(url, 'post', parameter, function(res){
    console.log(res);
    if (res.apiCode == 0) {
      me.comp("settlementListData").newData({
        defaultValues : [{
          "id" :1,
          "name" :666
        }]
      });
    };
  });
};

数据流向:js部分通过data组件的xid来操作dada组件的数据,list组件的data属性绑定data组件的xid属性
整个过程中,data组件的xid作为中转标识

9.嵌套列表
创建两个data组件,分别对应两个list组件

  <div component="$UI/system/components/justep/data/data" autoload="true" xid="firstLocation" idcolumn="lid">
   <column label="lid" name="lid" type="String" xid="xid20"></column> 
   <column label="name" name="name" type="String" xid="xid21"></column> 
   <data xid="default1">
    [{&quot;lid&quot;:&quot;1&quot;,&quot;name&quot;:&quot;0&quot;}]
   </data>
  </div> 
  <div component="$UI/system/components/justep/data/data" autoload="true" xid="secondLocation" idcolumn="lid">
   <column label="lid" name="lid" type="String" xid="xid22"></column> 
   <column label="parentId" name="parentId" type="String" xid="xid23"></column> 
   <column label="name" name="name" type="String" xid="xid24"></column>
  </div>

html部分,用到dataitemalias属性和filter

 <div component="$UI/system/components/justep/list/list" data="firstLocation" dataitemalias="firstRow"> 
   <div class="x-list-template"> 
    <div class="firstItem"> 
     <span bind-text="ref('name')"></span> 
     <div component="$UI/system/components/justep/list/list" data="secondLocation" filter="$row.val('parentId')==firstRow.val('lid')"> 
      <div class="x-list-template"> 
       <span bind-text="ref('name')"></span> 
      </div> 
     </div> 
    </div> 
   </div> 
  </div>

数据结构,子列表parentId和父列表lid对应

{
    "location": [{
        "lid": "1",
        "name": "\u8d27\u4f4dA",
        "secondLocation": [{
            "lid": "2",
            "parentId": "1",
            "name": "A1"
        },
        {
            "lid": "3",
            "parentId": "1",
            "name": "A2"
        },
        {
            "lid": "4",
            "parentId": "1",
            "name": "A3"
        },
        {
            "lid": "5",
            "parentId": "1",
            "name": "A4"
        }]
    },
    {
        "lid": "8",
        "name": "\u8d27\u4f4dB",
        "secondLocation": [{
            "lid": "9",
            "parentId": "8",
            "name": "B1"
        },
        {
            "lid": "10",
            "parentId": "8",
            "name": "B2"
        },
        {
            "lid": "11",
            "parentId": "8",
            "name": "B3"
        }]
    }]
}

js部分,注意外层循环开始时候调用clear对列表进行清除

me.comp("firstLocation").clear();
me.comp("secondLocation").clear();
for (var i = 0; i < locationData.length; i++) {
    me.comp("firstLocation").newData({
        defaultValues: [{
            "lid": locationData[i].lid,
            "name": locationData[i].name
        }]

    });
    var secondlocationData = locationData[i].secondLocation;
    for (var j = 0; j < secondlocationData.length; j++) {
        me.comp("secondLocation").newData({
            defaultValues: [{
                "lid": secondlocationData[j].lid,
                "name": secondlocationData[j].name,
                "parentId": secondlocationData[j].parentId
            }]

        });
    }

    //second
}

10.页面传参

12.data组件相关
data单个对象赋值

me.comp('count').setValue('countYes',res.countYes);
me.comp('count').setValue('countNo',res.countNo);

data数组赋值

me.comp("list").clear();
for (var i = 0; i < data.length; i++) {
	me.comp("list").newData({
		defaultValues: [{
			"id": data[i].id,
			"time": data[i].updatetime,
			"settlementNo": data[i].settlementNo,
			"settlement": data[i].settlement
		}]
	});
}

直接从data取值

<span bind-text=' $model.count.val("countNo")'></span>

http://blog.sina.com.cn/s/blog_667ac0360102wl8h.html

13.什么时候需要data组件