Get the Selected Rows of a Child Grid

Environment

Product	Progress® Kendo UI® Grid for jQuery
Product Version	Created version 2018.1.117

Description

How can I access the selected rows of a nested grid in my hierarchical Grid?

Solution

1. Add a unique Id to each child Grid.
2. In the detailExpand event handler, save the Id of the expanded child Grid.
3. Use the saved Id to access the child Grid.

EditPreviewOpen In Dojo

    <div id="example">
      <div id="grid"></div>
      <a class='k-button' onclick="printSelected()">Print in console selected items of child grid</a>
      <script>


        var childGrid = "child1";

        function printSelected(){
          console.log($('#'+childGrid).data('kendoGrid').select());
        }


        $(document).ready(function() {
          var element = $("#grid").kendoGrid({
            detailExpand:function(e){
              var grid = this;      

              childGrid=    e.detailRow.find('[data-role="grid"]').attr('id');
              grid.element.find('.k-master-row').each(function(){

                if(this!= e.masterRow[0]){
                  grid.collapseRow(this);
                }                            

              })                        

            },
            dataSource: {
              type: "odata",
              transport: {
                read: "https://demos.telerik.com/kendo-ui/service/Northwind.svc/Employees"
              },
              pageSize: 6,
              serverPaging: true,
              serverSorting: true
            },
            height: 600,
            sortable: true,
            pageable: true,
            detailInit: detailInit,
            dataBound: function() {
              this.expandRow(this.tbody.find("tr.k-master-row").first());
            },
            columns: [
              {
                field: "FirstName",
                title: "First Name",
                width: "110px"
              },
              {
                field: "LastName",
                title: "Last Name",
                width: "110px"
              },
              {
                field: "Country",
                width: "110px"
              },
              {
                field: "City",
                width: "110px"
              },
              {
                field: "Title"
              }
            ],

          });
        });

        function detailInit(e) {
          $("<div id='child"+e.data.EmployeeID+"'/>").appendTo(e.detailCell).kendoGrid({
            dataSource: {
              type: "odata",
              transport: {
                read: "https://demos.telerik.com/kendo-ui/service/Northwind.svc/Orders"
              },
              serverPaging: true,
              serverSorting: true,
              serverFiltering: true,
              pageSize: 10,
              filter: { field: "EmployeeID", operator: "eq", value: e.data.EmployeeID },
              schema:{
                model:{
                  id:'OrderID'
                }
              }
            },
            persistSelection:true,

            scrollable: false,
            sortable: true,
            pageable: true,
            columns: [
              { selectable: true, width: "50px" },
              { field: "OrderID", width: "110px" },
              { field: "ShipCountry", title:"Ship Country", width: "110px" },
              { field: "ShipAddress", title:"Ship Address" },
              { field: "ShipName", title: "Ship Name", width: "300px" }
            ]
          });
        }
      </script>
    </div>