kendoUI如何刷新数据源

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效果如下,点击后左侧Navigator Bar刷新





init显示代码

<div data-role="view" id="listview-templates" data-init="mobileListViewTemplatesInit" data-title="ListView" data-transition="slide">
    <ul style="float: left; width: 30%" id="custom-listview"></ul>
 <input id="metricId" type="hidden" value="34"/>
        <input id="metricUrl" type="hidden" value="http://localhost:3458/EmiteDataService/Nodes"/>
        <input id="metricStatus" type="hidden" value="0"/>


模板函数

<script id="customListViewTemplate" type="text/x-kendo-template">
    <div>
        <h3 class="item-title">#= MetricName #</h3>
        <p class="item-info">#= HostName #</p>
        <a data-role="button" onclick="GetMetricNodes('#= NodeId #')">View</a>
        <a data-role="button" class="details-link" onclick="GetChartById('#= MetricId #')">Next</a>
    </div>
</script>


然后是初始化时的载入函数(mobileListViewTemplatesInit)

<script>


     var metricNode = new kendo.data.DataSource({
					transport: {
						read: {
							// the remote service url
							url:"http://localhost:3458/EmiteDataService/Nodes",// JSONP is required for cross-domain AJAX
							dataType: "jsonp",// additional parameters sent to the remote service
							data: {
								userName:function(){
                                    return 'admin';
                                },userDomain:function(){
                                    return 'admin';
                                },status:function(){
                                    return  $('#metricStatus').val()
                                }
							}
						}
					},// describe the result format
					schema: {
						// the data which the data source will be bound to is in the "results" field
						data: ""
					},change: function() { // subscribe to the CHANGE event of the data source
                            //alert($('#metricId').val());
                            /*$("#tweets").html(kendo.render(template,this.view()));*/
                    }
				});



    function mobileListViewTemplatesInit() {
        $("#custom-listview").kendoMobileListView({
            dataSource:metricNode,template: $("#customListViewTemplate").html()
        });
    }
</script>



点击button后的触发函数
     <script type="text/javascript">
            function GetChartById(index){
                //this.element.prop("id")
                $('#metricId').attr("value",index);

                dataSource = new kendo.data.DataSource({
					transport: {
						read: {
							// the remote service url
							url: "http://localhost:3458/EmiteDataService/GetMetricCharts",// additional parameters sent to the remote service
							data: {
								aggregationType:function(){
                                    return $("#aggregationType").val();
                                },timeRange:function(){
                                    return $("#timeRange").val();
                                },metricid:function(){
                                    return  $("#metricId").val();
                                },stDate:'2011-10-29T16:00:00.000Z',enDate:function(){
                                    return  edTime;
                                }

							}
						}
					},change: function() { // subscribe to the CHANGE event of the data source
                            //alert("fffdds");
                            /*$("#tweets").html(kendo.render(template,this.view()));*/
                    }
				});

                createChart();
            }


            function GetMetricNodes(index)
            {
               $('#metricId').attr("value",index);
                metricNode = new kendo.data.DataSource({
					transport: {
						read: {
							// the remote service url
							url:"http://localhost:3458/EmiteDataService/ChildNodes",parentNodeId:function(){
                                    return  $('#metricId').val()
                                }
							}
						}
					},this.view()));*/
                    }
				});

                metricNode.read();
                mobileListViewTemplatesInit();
                

            }


        </script>



其实原理很简单,不过就是定义一个数据源然后绑定到控件上面,触发button点击事件的时候,通过一个隐藏的input,修改其中value的值,指的一提的是,数据源中的参数选择是读取input中value的值,如果input中value的值产生变更,request wcf的参数也将产生变化,由此我们可以完成修改数据源绑定的问题。

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