Angularjs 是否在ng网格中的所有分页页上选择的行不存在？

我已经创建了一个可以选择行的网格，如果我转到网格上的下一页并选择其他行，我的行数会更新，但是当我再次访问我的第一页时，上一个选择消失了，但行数仍然存在，即使在访问不同的页面后，我如何使它们保持不变

var app = angular.module('myApp', ['ngGrid']);
app.controller('MyCtrl', function($scope, $http) {

    $scope.filterOptions = {
        filterText: "",
        useExternalFilter: true
    };

    $scope.totalServerItems = 0;
    $scope.pagingOptions = {
        pageSizes: [5, 10, 20],
        pageSize: 5,
        currentPage: 1
    };
    $scope.setPagingData = function(data, page, pageSize){
        var pagedData = data.slice((page - 1) * pageSize, page * pageSize);
        $scope.myData = pagedData;
        $scope.totalServerItems = data.length;
        if (!$scope.$$phase) {
            $scope.$apply();
        }
    };
    $scope.getPagedDataAsync = function (pageSize, page, searchText) {
        setTimeout(function () {
            var data;
            if (searchText) {
                var ft = searchText.toLowerCase();
                $http.get('largeLoad.json').success(function (largeLoad) {
                    data = largeLoad.filter(function(item) {
                        return JSON.stringify(item).toLowerCase().indexOf(ft) != -1;
                    });
                    $scope.setPagingData(data,page,pageSize);
                });
            } else {
                $http.get('largeLoad.json').success(function (largeLoad) {
                    $scope.setPagingData(largeLoad,page,pageSize);
                });
            }
        }, 100);
    };

    $scope.getPagedDataAsync($scope.pagingOptions.pageSize, $scope.pagingOptions.currentPage);

    $scope.$watch('pagingOptions', function (newVal, oldVal) {
        if (newVal !== oldVal && newVal.currentPage !== oldVal.currentPage) {
            $scope.getPagedDataAsync($scope.pagingOptions.pageSize, $scope.pagingOptions.currentPage, $scope.filterOptions.filterText);
        }
    }, true);

    $scope.$watch('filterOptions', function (newVal, oldVal) {
        if (newVal !== oldVal) {
            $scope.getPagedDataAsync($scope.pagingOptions.pageSize, $scope.pagingOptions.currentPage, $scope.filterOptions.filterText);
        }
    }, true);

    $scope.edit = function (row) {
        row.entity.edit = !row.entity.edit;
    };

    $scope.gridOptions = {
        data: 'myData',
        enablePaging: true,
        showFooter: true,
        primaryKey:"name",
        enableRowSelection: true,
        showGroupPanel: true,
        enableCellSelection: false,
        jqueryUIDraggable: true,
        //showSelectionCheckbox: true,
        selectedItems:$scope.output,
        totalServerItems:'totalServerItems',
        pagingOptions: $scope.pagingOptions,
        filterOptions: $scope.filterOptions,
        columnDefs: [{
            field: 'nm',
            displayName: 'Name',
            cellTemplate: '<div class="ngCellText"><div ng-show="!row.entity.edit">{{row.getProperty(col.field)}}</div>' +
            '<div ng-show="row.entity.edit" class="ngCellText"><input type="text" ng-model="row.entity.nm"/></div></div>'
        },
            {
            field: 'cty',
            displayName: 'city',
            cellTemplate: '<div class="ngCellText"><div ng-show="!row.entity.edit">{{row.getProperty(col.field)}}</div>' +
            '<div ng-show="row.entity.edit" class="ngCellText"><input type="text" ng-model="row.entity.cty"/></div></div>'
        },
            {
            field: 'hse',
            displayName: 'Address',
            cellTemplate: '<div class="ngCellText"><div ng-show="!row.entity.edit">{{row.getProperty(col.field)}}</div>' +
            '<div ng-show="row.entity.edit" class="ngCellText"><input type="text" ng-model="row.entity.hse"/></div></div>'
            },

            {
                field: 'yrs',
                displayName: 'PinCode',
                cellTemplate: '<div class="ngCellText"><div ng-show="!row.entity.edit">{{row.getProperty(col.field)}}</div>' +
                '<div ng-show="row.entity.edit" class="ngCellText"><input type="text" ng-model="row.entity.yrs"/></div></div>'
            },
         {
            displayName: 'Edit',
            cellTemplate: '<button id="editBtn" type="button" class="btn btn-primary" ng-click="edit(row)" >Modify</button> '

        },
            {
                displayName: 'Remove',
                cellTemplate: '<button id="removebtn" type="button" class="btn btn-primary" ng-click="removeRow($index)" >Remove</button> '
            }

    ]
    };

    $scope.removeRow = function() {
        var index = this.row.rowIndex;
        $scope.gridOptions.selectItem(index, false);
        $scope.myData.splice(index, 1);
    };

    $scope.addRow = function() {
        $scope.myData.unshift({nm: 'abc', cty: 0 , hse:'abcd' , yrs:2014});
    };

});

var-app=angular.module（'myApp'，['ngGrid']）；
app.controller（'MyCtrl'，函数（$scope，$http）{
$scope.filterOptions={
筛选文本：“”，
useExternalFilter:true
};
$scope.totalServerItems=0；
$scope.pagingOptions={
页面大小：[5,10,20]，
页面大小：5，
当前页：1
};
$scope.setPagingData=函数（数据、页面、页面大小）{
var pagedData=data.slice（（第1页）*页面大小，页面*页面大小）；
$scope.myData=pagedData；
$scope.totalServerItems=data.length；
如果（！$scope.$$phase）{
$scope.$apply（）；
}
};
$scope.getPagedDataAsync=函数（页面大小、页面、搜索文本）{
setTimeout（函数（）{
var数据；
如果（搜索文本）{
var ft=searchText.toLowerCase（）；
$http.get（'largeLoad.json'）.success（函数（largeLoad）{
数据=大负荷过滤器（功能（项目）{
返回JSON.stringify（item）.toLowerCase（）.indexOf（ft）！=-1；
});
$scope.setPagingData（数据、页面、页面大小）；
});
}否则{
$http.get（'largeLoad.json'）.success（函数（largeLoad）{
$scope.setPagingData（大负载、页面、页面大小）；
});
}
}, 100);
};
$scope.getPagedDataAsync（$scope.paginOptions.pageSize，$scope.paginOptions.currentPage）；
$scope.$watch（'pagingOptions'，函数（newVal，oldVal）{
如果（newVal！==oldVal&&newVal.currentPage！==oldVal.currentPage）{
$scope.getPagedDataAsync（$scope.paginOptions.pageSize，$scope.paginOptions.currentPage，$scope.filterOptions.filterText）；
}
}，对）；
$scope.$watch（'filterOptions'，函数（newVal，oldVal）{
if（newVal！==oldVal）{
$scope.getPagedDataAsync（$scope.paginOptions.pageSize，$scope.paginOptions.currentPage，$scope.filterOptions.filterText）；
}
}，对）；
$scope.edit=函数（行）{
row.entity.edit=！row.entity.edit；
};
$scope.gridOptions={
数据：“myData”，
enablePaging:true，
showFooter：是的，
primaryKey:“名称”，
enableRowSelection:true，
showGroupPanel：正确，
enableCellSelection:false，
JQUERYUIDRAGABLE:没错，
//showSelectionCheckbox:true，
selectedItems:$scope.output，
totalServerItems:'totalServerItems'，
分页选项：$scope.pagingOptions，
filterOptions:$scope.filterOptions，
columnDefs：[{
字段：“nm”，
displayName:'名称'，
cellTemplate:“{row.getProperty（col.field）}”+
''
},
{
字段：“cty”，
displayName:'城市'，
cellTemplate:“{row.getProperty（col.field）}”+
''
},
{
字段：“hse”，
displayName:'地址'，
cellTemplate:“{row.getProperty（col.field）}”+
''
},
{
字段：“yrs”，
displayName:'PinCode'，
cellTemplate:“{row.getProperty（col.field）}”+
''
},
{
displayName:“编辑”，
cellTemplate:“修改”
},
{
displayName:“删除”，
cellTemplate:“删除”
}
]
};
$scope.removeow=函数（）{
var index=this.row.rowIndex；
$scope.gridOptions.selectItem（index，false）；
$scope.myData.splice（索引，1）；
};
$scope.addRow=函数（）{
$scope.myData.unshift（{nm:'abc'，cty:0，hse:'abcd'，yrs:2014}）；
};
});

---

我发现我错了，这里是对代码的修改，现在所选的值在访问其他页面时也会被保留

var app = angular.module('myApp', ['ngGrid']);
app.controller('MyCtrl', function($scope, $http) {
    $scope.filterOptions = {
        filterText: "",
        useExternalFilter: true
    };
    $scope.pagingOptions = {
        pageSizes: [25, 50, 100],
        pageSize: 25,
        totalServerItems: 0,
        currentPage: 1
    };
    $scope.setPagingData = function(data, page, pageSize){
        var pagedData = data.slice((page - 1) * pageSize, page * pageSize);
        $scope.myData = pagedData;
        $scope.pagingOptions.totalServerItems = data.length;
        if (!$scope.$$phase) {
            $scope.$apply();
        }
    };
    $scope.getPagedDataAsync = function (pageSize, page, searchText) {
        setTimeout(function () {
            var data;
            if (searchText) {
                var ft = searchText.toLowerCase();
                $http.get('largeLoad.json').success(function (largeLoad) {
                    data = largeLoad.filter(function(item) {
                        return JSON.stringify(item).toLowerCase().indexOf(ft) != -1;
                    });
                    $scope.setPagingData(data,page,pageSize);
                });
            } else {
                $http.get('largeLoad.json').success(function (largeLoad) {
                    $scope.setPagingData(largeLoad,page,pageSize);
                });
            }
        }, 100);
    };

    $scope.getPagedDataAsync($scope.pagingOptions.pageSize, $scope.pagingOptions.currentPage);

    $scope.$watch('pagingOptions', function () {
        console.log( "watch changed pagingOptions" );
        $scope.getPagedDataAsync($scope.pagingOptions.pageSize, $scope.pagingOptions.currentPage, $scope.filterOptions.filterText);
    }, true);
    $scope.$watch('filterOptions', function () {
        $scope.getPagedDataAsync($scope.pagingOptions.pageSize, $scope.pagingOptions.currentPage, $scope.filterOptions.filterText);
    }, true);

    $scope.gridOptions = {
        data: 'myData',
        enablePaging: true,
        pagingOptions: $scope.pagingOptions,
        showFooter: true,
        filterOptions: $scope.filterOptions,
        columnDefs: [{
            field: 'nm',
            displayName: 'Name',
            cellTemplate: '<div class="ngCellText"><div ng-show="!row.entity.edit">{{row.getProperty(col.field)}}</div>' +
            '<div ng-show="row.entity.edit" class="ngCellText"><input type="text" ng-model="row.entity.nm"/></div></div>'
        },
            {
                field: 'cty',
                displayName: 'city',
                cellTemplate: '<div class="ngCellText"><div ng-show="!row.entity.edit">{{row.getProperty(col.field)}}</div>' +
                '<div ng-show="row.entity.edit" class="ngCellText"><input type="text" ng-model="row.entity.cty"/></div></div>'
            },
            {
                field: 'hse',
                displayName: 'Address',
                cellTemplate: '<div class="ngCellText"><div ng-show="!row.entity.edit">{{row.getProperty(col.field)}}</div>' +
                '<div ng-show="row.entity.edit" class="ngCellText"><input type="text" ng-model="row.entity.hse"/></div></div>'
            },

            {
                field: 'yrs',
                displayName: 'PinCode',
                cellTemplate: '<div class="ngCellText"><div ng-show="!row.entity.edit">{{row.getProperty(col.field)}}</div>' +
                '<div ng-show="row.entity.edit" class="ngCellText"><input type="text" ng-model="row.entity.yrs"/></div></div>'
            },
            {
                displayName: 'Edit',
                cellTemplate: '<button id="editBtn" type="button" class="btn btn-primary" ng-click="edit(row)" >Modify</button> '

            },
            {
                displayName: 'Remove',
                cellTemplate: '<button id="removebtn" type="button" class="btn btn-primary" ng-click="removeRow($index)" >Remove</button> '
            }

        ]
    };

    $scope.selectedrowsInfo = [];

    // Selection setting
    $scope.gridOptions.primaryKey = "yrs";
    $scope.gridOptions.enableRowSelection = true;
    $scope.gridOptions.showSelectionCheckbox = false;
    $scope.gridOptions.multiSelect = true;
    $scope.gridOptions.selectedItems = $scope.selectedrowsInfo;
    $scope.gridOptions.showColumnMenu = true;
    $scope.edit = function (row) {
        row.entity.edit = !row.entity.edit;
    };

    $scope.removeRow = function() {
        var index = this.row.rowIndex;
        $scope.gridOptions.selectItem(index, false);
        $scope.myData.splice(index, 1);
    };

    $scope.go = function($location) {
        $location.path('/form.html');
        //$window.location.href = '/form.html';
    };

});

var-app=angular.module（'myApp'，['ngGrid']）；
app.controller（'MyCtrl'，函数（$scope，$http）{
$scope.filterOptions={
筛选文本：“”，
useExternalFilter:true
};
$scope.pagingOptions={
页面大小：[25,50,100]，
页面大小：25，
totalServerItems:0，
当前页：1
};
$scope.setPagingData=函数（数据、页面、页面大小）{
var pagedData=data.slice（（第1页）*页面大小，页面*页面大小）；
$scope.myData=pagedData；
$scope.pagingOptions.totalServerItems=data.length；
如果（！$scope.$$phase）{
$scope.$apply（）；
}
};
$scope.getPagedDataAsync=函数（页面大小、页面、搜索文本）{
setTimeout（函数（）{
var数据；
如果（搜索文本）{
var ft=searchText.toLowerCase（）；
$http.get（'largeLoad.json'）.success（函数（largeLoad）{
数据=大负荷过滤器（功能（项目）{
返回JSON.stringify（item）.toLowerCase（）.indexOf（ft）！=-1；
});
$scope.setPagingData（数据、页面、页面大小）；
});
}否则{
$http.get（'largeLoad.json'）.success（函数（largeLoad）{
$scope.setPagingData（大负载、页面、页面大小）；
});
}
}, 100);
};
$scope.getPagedDataAsync（$scope.paginOptions.pageSize，$scope.paginOptions.currentPage）；
$scope.$watch（'pagingOptions'，函数（）{
log（“监视更改的分页选项”）；
$scope.getPagedDataAsync（$scope.paginOptions.pageSi