Question

使用ngGrid v2.X时，我试图在网页滚动（不是网格滚动）到底时开发一个加载更多数据的网格。

通过搜索类似问题，我找到了第一个问题的解决方案： ngGrid必须具有动态高度，所以我已经做到了

.ngViewport{ height:auto !important; } .ngCanvas, .ngViewport, .ngRow, .ngFooterPanel, .ngTopPanel { width: 100% !important; } .ngRow { border-bottom:none !important; }

带我去我的第二个问题。我需要通过滚动加载数据，我发现： ngGridEventScroll ，但是o nly触发器当使用ngGrid实习生滚动时，我需要页面滚动

  $scope.$on('ngGridEventScroll', function () {
        $scope.currentDataPosition++;
        $scope.setPagingData($scope.dataArray, $scope.currentDataPosition, $scope.pagingOptions.pageSize);
    });

因此，解决方案1打破了解决方案2，因为ngGridEventScroll不再具有实习滚动。

 $scope.setPagingData = function (data, page, pageSize) {
        cfpLoadingBar.start();
        var pagedData = data.slice((page - 1) * pageSize, page * pageSize, page * pageSize);
        $scope.totalServerItems = data.length;
        $scope.myData = pagedData;
        cfpLoadingBar.complete();
    };

 $scope.gridOptions = {
        data: 'myData',
        virtualizationThreshold: 50,
        enableRowSelection: false,
        enablePaging: false,
        enableSorting: false,
        showFooter: false,
        pagingOptions: $scope.pagingOptions,
        filterOptions: $scope.filterOptions,
    }

可以做些什么？

Answer 1

您可以使用ngInfiniteScroll（https://sroze.github.io/ngInfiniteScroll/index.html）并应用以下策略。

在您的控制器中

    $scope.limit = 50; // Initial limit (make sure its enough to cover the whole page, otherwise the raiseLimit function might not be called)
    $scope.raiseLimit = function() { // function called by ngInfiniteScroll
         if ( $scope.limit < data.length) {
             $scope.limit += 10; // adjust to your need
         } else {
             $scope.dataLoaded = true;
         }
    }
    $scope.dataLoaded = false; // prevent useless call
    $scope.myData = $filter('limitTo')(data, $scope.limit); // Do not forget to inject $filter into your controller

在您的HTML中

    <div infinite-scroll='raiseLimit()' infinite-scroll-disabled='dataLoaded'>
        <!-- put your grid with dynamic height here -->
    </div>

如何在ngGridEventScroll上使用页面滚动？

1 个答案: