How to check all check boxes in Telerik Kendo Grid - checkbox

Question

I have a Kendo Grid with check box column. I want to check all check boxes in the grid and keep it across the pages. I have a method CheckAll(), but it checks only the first page of Kendo Grid. How to check all check boxes by one click on the link or button? My code is here:
<div style="text-align:right; font-size: 0.9em;height:28px;position: relative;">
<span style="float:left;text-align:left;">
Check All
Uncheck All
<a class="k-button k-button-icontext k-grid-Patient" id="hrefCheckedPatients" href="#" onclick="getChecked();">Export to PDF</a>
Download Generated PDF
<label id="checkedMsg" style="color:red;display:none;"></label>
</span>
</div>
#(Html.Kendo().Grid<RunSummary>()
.Name("CheckedPatients")
.DataSource(datasource => datasource
.Ajax().PageSize(25)
.Sort(sort => sort.Add("UniqueId").Ascending())
.Read(read => read.Action("GetRunSummaries", "PatientReport")))
.Columns(columns =>
{
columns.Bound(c => c.UniqueId).Title(ELSORegistry.Resources.Views.Home.HomeStrings.UniqueId)
.ClientTemplate("<input type='checkbox' class='primaryBox' id='#= UniqueId #'>#= UniqueId #</input>");
columns.Bound(c => c.RunNo).Title(SharedStrings.Run);
columns.Bound(c => c.Birthdate).Title(SharedStrings.Birthdate).Format("{0:g}").Filterable(true);
columns.Bound(c => c.customAge).Title(SharedStrings.Age)
.Filterable(
filterable => filterable
.UI("AgeFilter")
.Extra(false)
.Operators(operators => operators
.ForString(str => str.Clear().IsEqualTo("Is equal to"))
)
);
columns.Bound(c => c.TimeOn).Title(PatientStrings.DateOn)
.Format("{0:g}")
.Filterable(true);
columns.Bound(c => c.TimeOff).Title(PatientStrings.DateOff)
.Format("{0:g}")
.Filterable(true);
columns.Bound(c => c.DischargedAlive).Title(PatientStrings.DischargedAlive).Filterable(true).ClientTemplate("#= DischargedAlive ? 'Yes' : 'No' #");
columns.Bound(c => c.ShowSubmitted).Title(PatientStrings.Submitted).Filterable(true).ClientTemplate("#= ShowSubmitted ? 'Yes' : 'No' #");
columns.Bound(c => c.SupportTypeEnum).Title(PatientStrings.SupportType).Filterable(true);//.ClientTemplate("#= SupportType ? 'Yes' : 'No' #");
}
)
.Pageable(p => p.PageSizes(new[] {10, 25, 50, 100}))
.Sortable()
.Filterable( )
.Events( e => e.FilterMenuInit("FilterMenuFuncWithAge") ) // apply x [closing box] on pop up filter box
)
<script type="text/javascript">
function checkAll() {
$('input').prop('checked', 'checked');
}
function uncheckAll() {
$('input').removeAttr('checked');
}
</script>

Answer 1

You need to update datasource property not the view.
Try something like that in CheckAll function:
var dataSource =('[name]="CheckedPatients"').data('kendoGrid').dataSource;
var data = dataSource.data();
var totalNumber = data.length;
for(var i = 0; i<totalNumber; i++) {
var currentDataItem = data[i];
currentDataItem.set("ShowSubmitted", "true");
}
UPDATE
// here all filtered/sorted data as in grid.
var view = dataSource.view();
Here you can read kendo docs about datasource object
UPDATE2
here solution for get all data from paged datasource:
var dataSource = $("#grid").data("kendoGrid").dataSource;
var filters = dataSource.filter();
var allData = dataSource.data();
var query = new kendo.data.Query(allData);
var data = query.filter(filters).data;