Created a directive (ng-repeat with lazy loading)
sayfanın altına ulaştığında veri yükler ve önceden yüklenen verilerin yarısını kaldırır ve div'in üstüne ulaştığında veri (sayfa numarasına bağlı olarak) tekrar yüklenir. mevcut verilerin yarısı kaldırılır. bir seferde sadece sınırlı veri mevcuttur, bu da yükte tüm verileri oluşturmak yerine daha iyi performansa neden olabilir.
HTML KODU:
<!DOCTYPE html>
<html ng-app="plunker">
<head>
<meta charset="utf-8" />
<title>AngularJS Plunker</title>
<script>document.write('<base href="' + document.location + '" />');</script>
<link rel="stylesheet" href="style.css" />
<script src="https://code.jquery.com/jquery-2.2.4.min.js" integrity="sha256-BbhdlvQf/xTY9gja0Dq3HiwQF8LaCRTXxZKRutelT44=" crossorigin="anonymous"></script>
<script data-require="angular.js@1.3.x" src="https://code.angularjs.org/1.3.20/angular.js" data-semver="1.3.20"></script>
<script src="app.js"></script>
</head>
<body ng-controller="ListController">
<div class="row customScroll" id="customTable" datafilter pagenumber="pageNumber" data="rowData" searchdata="searchdata" itemsPerPage="{{itemsPerPage}}" totaldata="totalData" selectedrow="onRowSelected(row,row.index)" style="height:300px;overflow-y: auto;padding-top: 5px">
<!--<div class="col-md-12 col-xs-12 col-sm-12 assign-list" ng-repeat="row in CRGC.rowData track by $index | orderBy:sortField:sortReverse | filter:searchFish">-->
<div class="col-md-12 col-xs-12 col-sm-12 pdl0 assign-list" style="padding:10px" ng-repeat="row in rowData" ng-hide="row[CRGC.columns[0].id]=='' && row[CRGC.columns[1].id]==''">
<!--col1-->
<div ng-click ="onRowSelected(row,row.index)"> <span>{{row["sno"]}}</span> <span>{{row["id"]}}</span> <span>{{row["name"]}}</span></div>
<!-- <div class="border_opacity"></div> -->
</div>
</div>
</body>
</html>
Açısal KOD:
var app = angular.module('plunker', []);
var x;
ListController.$inject = ['$scope', '$timeout', '$q', '$templateCache'];
function ListController($scope, $timeout, $q, $templateCache) {
$scope.itemsPerPage = 40;
$scope.lastPage = 0;
$scope.maxPage = 100;
$scope.data = [];
$scope.pageNumber = 0;
$scope.makeid = function() {
var text = "";
var possible = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789";
for (var i = 0; i < 5; i++)
text += possible.charAt(Math.floor(Math.random() * possible.length));
return text;
}
$scope.DataFormFunction = function() {
var arrayObj = [];
for (var i = 0; i < $scope.itemsPerPage*$scope.maxPage; i++) {
arrayObj.push({
sno: i + 1,
id: Math.random() * 100,
name: $scope.makeid()
});
}
$scope.totalData = arrayObj;
$scope.totalData = $scope.totalData.filter(function(a,i){ a.index = i; return true; })
$scope.rowData = $scope.totalData.slice(0, $scope.itemsperpage);
}
$scope.DataFormFunction();
$scope.onRowSelected = function(row,index){
console.log(row,index);
}
}
angular.module('plunker').controller('ListController', ListController).directive('datafilter', function($compile) {
return {
restrict: 'EAC',
scope: {
data: '=',
totalData: '=totaldata',
pageNumber: '=pagenumber',
searchdata: '=',
defaultinput: '=',
selectedrow: '&',
filterflag: '=',
totalFilterData: '='
},
link: function(scope, elem, attr) {
//scope.pageNumber = 0;
var tempData = angular.copy(scope.totalData);
scope.totalPageLength = Math.ceil(scope.totalData.length / +attr.itemsperpage);
console.log(scope.totalData);
scope.data = scope.totalData.slice(0, attr.itemsperpage);
elem.on('scroll', function(event) {
event.preventDefault();
// var scrollHeight = angular.element('#customTable').scrollTop();
var scrollHeight = document.getElementById("customTable").scrollTop
/*if(scope.filterflag && scope.pageNumber != 0){
scope.data = scope.totalFilterData;
scope.pageNumber = 0;
angular.element('#customTable').scrollTop(0);
}*/
if (scrollHeight < 100) {
if (!scope.filterflag) {
scope.scrollUp();
}
}
if (angular.element(this).scrollTop() + angular.element(this).innerHeight() >= angular.element(this)[0].scrollHeight) {
console.log("scroll bottom reached");
if (!scope.filterflag) {
scope.scrollDown();
}
}
scope.$apply(scope.data);
});
/*
* Scroll down data append function
*/
scope.scrollDown = function() {
if (scope.defaultinput == undefined || scope.defaultinput == "") { //filter data append condition on scroll
scope.totalDataCompare = scope.totalData;
} else {
scope.totalDataCompare = scope.totalFilterData;
}
scope.totalPageLength = Math.ceil(scope.totalDataCompare.length / +attr.itemsperpage);
if (scope.pageNumber < scope.totalPageLength - 1) {
scope.pageNumber++;
scope.lastaddedData = scope.totalDataCompare.slice(scope.pageNumber * attr.itemsperpage, (+attr.itemsperpage) + (+scope.pageNumber * attr.itemsperpage));
scope.data = scope.totalDataCompare.slice(scope.pageNumber * attr.itemsperpage - 0.5 * (+attr.itemsperpage), scope.pageNumber * attr.itemsperpage);
scope.data = scope.data.concat(scope.lastaddedData);
scope.$apply(scope.data);
if (scope.pageNumber < scope.totalPageLength) {
var divHeight = $('.assign-list').outerHeight();
if (!scope.moveToPositionFlag) {
angular.element('#customTable').scrollTop(divHeight * 0.5 * (+attr.itemsperpage));
} else {
scope.moveToPositionFlag = false;
}
}
}
}
/*
* Scroll up data append function
*/
scope.scrollUp = function() {
if (scope.defaultinput == undefined || scope.defaultinput == "") { //filter data append condition on scroll
scope.totalDataCompare = scope.totalData;
} else {
scope.totalDataCompare = scope.totalFilterData;
}
scope.totalPageLength = Math.ceil(scope.totalDataCompare.length / +attr.itemsperpage);
if (scope.pageNumber > 0) {
this.positionData = scope.data[0];
scope.data = scope.totalDataCompare.slice(scope.pageNumber * attr.itemsperpage - 0.5 * (+attr.itemsperpage), scope.pageNumber * attr.itemsperpage);
var position = +attr.itemsperpage * scope.pageNumber - 1.5 * (+attr.itemsperpage);
if (position < 0) {
position = 0;
}
scope.TopAddData = scope.totalDataCompare.slice(position, (+attr.itemsperpage) + position);
scope.pageNumber--;
var divHeight = $('.assign-list').outerHeight();
if (position != 0) {
scope.data = scope.TopAddData.concat(scope.data);
scope.$apply(scope.data);
angular.element('#customTable').scrollTop(divHeight * 1 * (+attr.itemsperpage));
} else {
scope.data = scope.TopAddData;
scope.$apply(scope.data);
angular.element('#customTable').scrollTop(divHeight * 0.5 * (+attr.itemsperpage));
}
}
}
}
};
});
Direktif ile demo
Another Solution: If you using UI-grid in the project then same implementation is there in UI grid with infinite-scroll.
Bölümün yüksekliğine bağlı olarak verileri yükler ve kaydırma üzerine yeni veriler eklenir ve önceki veriler kaldırılır.
HTML Kodu:
<!DOCTYPE html>
<html ng-app="plunker">
<head>
<meta charset="utf-8" />
<title>AngularJS Plunker</title>
<script>document.write('<base href="' + document.location + '" />');</script>
<link rel="stylesheet" href="style.css" />
<link rel="stylesheet" href="https://cdn.rawgit.com/angular-ui/bower-ui-grid/master/ui-grid.min.css" type="text/css" />
<script data-require="angular.js@1.3.x" src="https://code.angularjs.org/1.3.20/angular.js" data-semver="1.3.20"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/angular-ui-grid/4.0.6/ui-grid.js"></script>
<script src="app.js"></script>
</head>
<body ng-controller="ListController">
<div class="input-group" style="margin-bottom: 15px">
<div class="input-group-btn">
<button class='btn btn-primary' ng-click="resetList()">RESET</button>
</div>
<input class="form-control" ng-model="search" ng-change="abc()">
</div>
<div data-ui-grid="gridOptions" class="grid" ui-grid-selection data-ui-grid-infinite-scroll style="height :400px"></div>
<button ng-click="getProductList()">Submit</button>
</body>
</html>
Açısal Kod:
var app = angular.module('plunker', ['ui.grid', 'ui.grid.infiniteScroll', 'ui.grid.selection']);
var x;
angular.module('plunker').controller('ListController', ListController);
ListController.$inject = ['$scope', '$timeout', '$q', '$templateCache'];
function ListController($scope, $timeout, $q, $templateCache) {
$scope.itemsPerPage = 200;
$scope.lastPage = 0;
$scope.maxPage = 5;
$scope.data = [];
var request = {
"startAt": "1",
"noOfRecords": $scope.itemsPerPage
};
$templateCache.put('ui-grid/selectionRowHeaderButtons',
"<div class=\"ui-grid-selection-row-header-buttons \" ng-class=\"{'ui-grid-row-selected': row.isSelected}\" ><input style=\"margin: 0; vertical-align: middle\" type=\"checkbox\" ng-model=\"row.isSelected\" ng-click=\"row.isSelected=!row.isSelected;selectButtonClick(row, $event)\"> </div>"
);
$templateCache.put('ui-grid/selectionSelectAllButtons',
"<div class=\"ui-grid-selection-row-header-buttons \" ng-class=\"{'ui-grid-all-selected': grid.selection.selectAll}\" ng-if=\"grid.options.enableSelectAll\"><input style=\"margin: 0; vertical-align: middle\" type=\"checkbox\" ng-model=\"grid.selection.selectAll\" ng-click=\"grid.selection.selectAll=!grid.selection.selectAll;headerButtonClick($event)\"></div>"
);
$scope.gridOptions = {
infiniteScrollDown: true,
enableSorting: false,
enableRowSelection: true,
enableSelectAll: true,
//enableFullRowSelection: true,
columnDefs: [{
field: 'sno',
name: 'sno'
}, {
field: 'id',
name: 'ID'
}, {
field: 'name',
name: 'My Name'
}],
data: 'data',
onRegisterApi: function(gridApi) {
gridApi.infiniteScroll.on.needLoadMoreData($scope, $scope.loadMoreData);
$scope.gridApi = gridApi;
}
};
$scope.gridOptions.multiSelect = true;
$scope.makeid = function() {
var text = "";
var possible = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789";
for (var i = 0; i < 5; i++)
text += possible.charAt(Math.floor(Math.random() * possible.length));
return text;
}
$scope.abc = function() {
var a = $scope.search;
x = $scope.searchData;
$scope.data = x.filter(function(arr, y) {
return arr.name.indexOf(a) > -1
})
console.log($scope.data);
if ($scope.gridApi.grid.selection.selectAll)
$timeout(function() {
$scope.gridApi.selection.selectAllRows();
}, 100);
}
$scope.loadMoreData = function() {
var promise = $q.defer();
if ($scope.lastPage < $scope.maxPage) {
$timeout(function() {
var arrayObj = [];
for (var i = 0; i < $scope.itemsPerPage; i++) {
arrayObj.push({
sno: i + 1,
id: Math.random() * 100,
name: $scope.makeid()
});
}
if (!$scope.search) {
$scope.lastPage++;
$scope.data = $scope.data.concat(arrayObj);
$scope.gridApi.infiniteScroll.dataLoaded();
console.log($scope.data);
$scope.searchData = $scope.data;
// $scope.data = $scope.searchData;
promise.resolve();
if ($scope.gridApi.grid.selection.selectAll)
$timeout(function() {
$scope.gridApi.selection.selectAllRows();
}, 100);
}
}, Math.random() * 1000);
} else {
$scope.gridApi.infiniteScroll.dataLoaded();
promise.resolve();
}
return promise.promise;
};
$scope.loadMoreData();
$scope.getProductList = function() {
if ($scope.gridApi.selection.getSelectedRows().length > 0) {
$scope.gridOptions.data = $scope.resultSimulatedData;
$scope.mySelectedRows = $scope.gridApi.selection.getSelectedRows(); //<--Property undefined error here
console.log($scope.mySelectedRows);
//alert('Selected Row: ' + $scope.mySelectedRows[0].id + ', ' + $scope.mySelectedRows[0].name + '.');
} else {
alert('Select a row first');
}
}
$scope.getSelectedRows = function() {
$scope.mySelectedRows = $scope.gridApi.selection.getSelectedRows();
}
$scope.headerButtonClick = function() {
$scope.selectAll = $scope.grid.selection.selectAll;
}
}
Sonsuz kaydırma Demo ile UI ızgarası ile demo
limitToyalnızca 20 öğeyi görüntülemek için kullanabilirsiniz :<p ng-repeat="data in dataset | limitTo:20">{{data}}</p>Bu yalnızca 20 öğeyi gösterir. Ardından sayfaları kullanabilir ve sonraki 10 öğeyi veya bunun gibi bir şeyi gösterebilirsiniz. :)