如何在 ngGridEventScroll 上使用页面滚动?
How to use page scroll on ngGridEventScroll?
使用 ngGrid v2.X,我正在尝试开发一个网格,当页面滚动(不是网格滚动)到达底部时加载更多数据。
通过搜索类似问题,我找到了第一个问题的解决方案:
ngGrid 必须有动态高度,所以我这样做了
.ngViewport{ height:auto !important; } .ngCanvas, .ngViewport, .ngRow, .ngFooterPanel, .ngTopPanel { width: 100% !important; } .ngRow { border-bottom:none !important; }
这把我带到了 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仅在使用ngGrid intern scroll时触发,我需要page scroll
$scope.$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 不再具有实习生滚动。
$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,
}
可以做什么?
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
在你的html
<div infinite-scroll='raiseLimit()' infinite-scroll-disabled='dataLoaded'>
<!-- put your grid with dynamic height here -->
</div>
使用 ngGrid v2.X,我正在尝试开发一个网格,当页面滚动(不是网格滚动)到达底部时加载更多数据。
通过搜索类似问题,我找到了第一个问题的解决方案: ngGrid 必须有动态高度,所以我这样做了
.ngViewport{ height:auto !important; } .ngCanvas, .ngViewport, .ngRow, .ngFooterPanel, .ngTopPanel { width: 100% !important; } .ngRow { border-bottom:none !important; }
这把我带到了 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仅在使用ngGrid intern scroll时触发,我需要page scroll
$scope.$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 不再具有实习生滚动。
$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,
}
可以做什么?
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
在你的html
<div infinite-scroll='raiseLimit()' infinite-scroll-disabled='dataLoaded'>
<!-- put your grid with dynamic height here -->
</div>