使用 Angular-DataTables 更新数据时会重置分页

Question

我们有一个使用 Angular DataTables 的 Web 表单（DataTables 1.10.10 / angular-datatables - v0.5.3）。我们使用来自后端的 JSON 来提供数据。 table 配置了分页，每 10 秒手动重新加载一次 table 的数据。这一切工作正常，当我 select 与第一页不同的页面和 table 得到刷新然后分页被重置。我尝试了 draw(https://datatables.net/reference/api/draw()) 方法的不同参数但没有任何区别.. 提前致谢！！

我的HTMLtable:

<table datatable="ng" id="datatable1" dt-options="dtOptions" dt-column-defs="dtColumnDefs" class="table table-striped table-hover" dt-instance="dtInstance">

<tr ng-repeat="session in data.serverData[data.selectedAgent]" class="gradeX">

这是我们的控制器：

App.controller("ReportAgentSessionsListController", [
"$scope", "$http", "sessionsListData", "$timeout", "DTOptionsBuilder", "DTColumnDefBuilder", function ($scope, $http, sessionsListData, $timeout, DTOptionsBuilder, DTColumnDefBuilder, DTInstances) {

$scope.dtOptions = DTOptionsBuilder.newOptions().withPaginationType("simple_numbers").withDisplayLength(25).withOption("retrieve", true).withOption('order', [0, 'desc']);
 $scope.dtColumnDefs = [
        DTColumnDefBuilder.newColumnDef(0),
        DTColumnDefBuilder.newColumnDef(1),
        DTColumnDefBuilder.newColumnDef(2),
        DTColumnDefBuilder.newColumnDef(3).notSortable(),
    ];

    // Get original request params
    $scope.dateData = JSON.parse(sessionsListData.config.data);

    var timer;  // used for auto-refresh
    var vm = this;
    $scope.cduInterval = 1000;
    $scope.counter = 0;
    $scope.dtInstance = {};
    $scope.data = {};
    $scope.data.serverData = [];

    var formatServerData = function(serverData) {

        $scope.agentsList = Object.keys(serverData);
        // If no agent has been selected
        if (!$scope.data.selectedAgent) {
            $scope.data.selectedAgent = $scope.agentsList[0];
        }
        // Format data
        for (var key in serverData) {
            if (serverData.hasOwnProperty(key)) {
                for (var i = 0; i < serverData[key].length; i++) {
                    var data = serverData[key][i];
                    data.waitTime = numeral(data.waitTime).format("00:00:00");
                    data.handleTime = numeral(data.handleTime).format("00:00:00");
                    data.revenue = numeral(data.revenue).format("[=12=],0.00");
                }
            }
        }
        $scope.data.serverData = serverData;
        // This does not do anything apparently
        if ($scope.dtInstance.DataTable) {
            $scope.dtInstance.DataTable.draw('full-hold');
        }
    };

    var scheduleTimeout = function () {
        var getFreshDataInterval = 1000;
        timer = $timeout(getFreshData, getFreshDataInterval);
    };

    // Request a new set of data from the server
    var getFreshData = function () {
        if ($scope.counter++ % 10 == 0) {   // Requests to server will be done every 10th request (10 secs)

            var response = $http({
                abp: true,
                url: abp.appPath + "Report/GetTeamSessionsByTimeInterval",
                method: "POST",
                data: sessionsListData.config.data
            }).then(function (response) {
                formatServerData(response.data);
                if (timer) {
                    scheduleTimeout();
                }
            });
        }
        else {
            if (timer) {
                scheduleTimeout();
            }
        }
    };

    // Is currentdate between the date ranges being displayed
    var isTodayInRage = function (currentdate) {
        ..
    }

    formatServerData(sessionsListData.data);

    if (isTodayInRage(userCurrentDate)) {
        // Date range includes Today (local time)
        scheduleTimeout();
    }

    $scope.selectAgent = function(agent) {
        $scope.data.selectedAgent = agent;
    };

    $scope.$on("$destroy", function () {
        if (timer) {
            $timeout.cancel(timer);
        }
    });
}]);

Answer 1

可以通过dtInstance

获取当前页面

var page = $scope.dtInstance.DataTable.page()

然后重绘但停留在当前页码

$scope.dtInstance.DataTable.page(page).draw(false)

显然我无法复制您的代码/场景 1:1，但我会在 formatServerData()

中首先检索当前页面

var formatServerData = function(serverData) {
   var page = $scope.dtInstance.DataTable.page()
   ...

以及 serverData

格式化后

if ($scope.dtInstance.DataTable) {
   $timeout(function() {
      $scope.dtInstance.DataTable.page(page).draw(false)
   })
}

Answer 2

启用或禁用状态保存。启用后，aDataTables 将存储分页位置、显示长度、过滤和排序等状态信息。当最终用户重新加载页面时，table 的状态将被更改以匹配他们之前设置的状态。

使用==> .withOption('stateSave', false) //or true as the case

例子

$scope.dtOptions = DTOptionsBuilder.newOptions()
        .withOption('stateSave', false)
        .withPaginationType("simple_numbers")
        .withDisplayLength(25)
        .withOption("retrieve", true)
        .withOption('order', [0, 'desc']);

要了解更多信息，请阅读文档 stateSave

https://datatables.net/reference/option/stateSave

使用 Angular-DataTables 更新数据时会重置分页

Paging is reset when data is updated with Angular-DataTables

angularjs

datatables

angular-datatables