D365 CE & Power Platform 编程系列 （9）：JS编程之客户端Read分页事件

今天我们来看看怎么使用分页查询记录，同时，今天使用的也是原生的Xrm.WebApi。接下来看看今天的实验场景吧：

1）在商机页面加载的时候，分页查询关联的my budget plan记录数量，并弹出具体的数值信息。

实现后的效果：

实现代码：

    RetriveMyBudgetPlan:function(query,myBudgetPlans)
    {
        var clientURL="https://org4fb4251a.crm.dynamics.com/api/data/v9.0/new_mybudgetplans";
        var myBudgetPlanCount=0;
        Xrm.WebApi.retrieveMultipleRecords("new_mybudgetplan", query,2).then(
                                        function success(result) {
                                            myBudgetPlans=myBudgetPlans.concat(result.entities);
                                            myBudgetPlanCount=myBudgetPlans.length;

                                            if(result.nextLink!=undefined)
                                            {
                                                query=result.nextLink;
                                                query=query.split(clientURL)[1];
                                                CRMHOME.Opportunity.Entity.RetriveMyBudgetPlan(query, myBudgetPlans);


                                            }
                                            else
                                            {
                                                Xrm.Utility.alertDialog("total my budget plan record number is: "+myBudgetPlanCount.toString());
                                            }



                                        }
                                        ,
                                        function(error){
                                            console.log(error);
                                        });
    }

调用代码：

    Form_Onload:function(){
        debugger;
        //Xrm.Utility.alertDialog("Hello form onload event");
        //retrive multiple records with pagging
        var nextPage=null;
        var recordNum=0;
        var tryCounter=0;
        var hasError=false;
        var clientURL="https://org4fb4251a.crm.dynamics.com/api/data/v9.0/new_mybudgetplans";
        var queryFilter="?$filter=new_opportunityId/opportunityid eq '$OPPID$' and new_contact/contactid eq '$CONTACTID$'";
        var oppID=Xrm.Page.data.entity.getId().replace("{","").replace("}","");
        var contactID=Xrm.Page.getAttribute("parentcontactid").getValue()[0].id.replace("{","").replace("}","");
        var hasRequest=false;
        queryFilter=queryFilter.replace("$OPPID$",oppID).replace("$CONTACTID$",contactID);

        var myBudgetPlan=[];
        CRMHOME.Opportunity.Entity.RetriveMyBudgetPlan(queryFilter,myBudgetPlan);
}