Resolve Array length in Angular UI-grid and dynamically enable/disable paging - angularjs

Question

I am getting a nested collection from service. When i am mapping field to Array with Array.length it is giving me output. BUT when i try
field: Auditlogs[Auditlogs.length-1].auditState.StateName . It stops working. Please help me on this.
I also want to disable Pagination based on a Flag in $scope. Below is my ui-grid setting
$scope.gridOptions = {
data: 'auditList',
enableColumnResizing: true,
paginationPageSizes: [10, 25, 50],
paginationPageSize: 10,
enablePaginationControls: false,
enableFiltering: false,
enableSorting: true,
useExternalPagination: true,
columnDefs: [
{
name: 'LOAN #',
cellTemplate: '<a ng-click="grid.appScope.getLoanDetails(row.entity.Loan.LoanNumber,row.entity.Id)">{{row.entity.Loan.LoanNumber}}</a>'
,enableHiding: false
},
{
name: 'Audit Type',
field: 'AuditType.AuditType1'
,enableHiding: false
},
{
name: 'Borrower Last Name',
field: 'Loan.BorrowerLastName'
,enableHiding: false
},
{
name: 'Funding Date',
field: 'Loan.FundingDate',
type: 'date',
cellFilter: 'date:\'MM/dd/yyyy\'',
enableFiltering: false
,enableHiding: false
},
{
name: 'Audit start date',
field: 'AuditStartDate',
type: 'date',
cellFilter: 'date:\'MM/dd/yyyy\''
,enableHiding: false
},
{
name: 'Due Date',
field: 'AuditStartDate',
type: 'date',
cellFilter: 'date:\'MM/dd/yyyy\''
,enableHiding: false
},
{
name: 'Finding Count',
field: 'AuditFindings.length',
enableHiding: false
},
{
name: 'Current Status',
field: 'Auditlogs[Auditlogs.length-1].auditState.StateName'
//$scope.auditList[0].Auditlogs[$scope.auditList[0].Auditlogs.length-1].auditState.StateName
,enableHiding: false
},
{
name: 'Cur.Status Dt.',
field: 'AuditStartDate',
type: 'date',
cellFilter: 'date:\'MM/dd/yyyy\''
,enableHiding: false
}
],
onRegisterApi: function (gridApi) {
$scope.gridApi = gridApi;
gridApi.pagination.on.paginationChanged($scope, function (newPage, pageSize) {
$scope.paginationOptions.pageNumber = newPage;
$scope.paginationOptions.pageSize = pageSize;
$scope.getAllPA($scope.flagValue.value);
});
}
};

Answer 1

I Solved the above issue by using CellTemplate instead of Feild
cellTemplate: '<div>{{row.entity.Auditlogs[row.entity.Auditlogs.length-1].auditState.StateName}}</div>'
I am still looking to dynamically enable/disable pagination on Grid.