Indeterminate checkboxes for parents with children selected

[jovaughn]

I am unable to replicate this demo on page/data load. With data that is already checked the parent gets put into an indeterminate state if any of its children are checked.

The indeterminate state only appears if the user manually clicks one of the children check boxes.

https://dojo.telerik.com/ebAVASUp - here February is checked and its parent is in an indeterminate state on data/page load

My Code

<kendo-treeview name="DataRestrictionTree" load-on-demand="false" template="#=TreeViewTemplateSet(item.PathDescription,item.ModifiedBy,item.ModifiedDate,item.checked)#">
               <checkboxes check-children="true"/>
               <!--Batch attribute in hierachical datasource is needed so any change causes an update-->
               <hierarchical-datasource type="Kendo.Mvc.UI.DataSourceTagHelperType.Ajax" server-filtering="true" server-sorting="true" page-size="0" batch="true" on-request-end="RequestEnd">
                   <transport>
                       <read url="@Url.Action("GetDataRestrictionAssignments", "DataRestrictionAssignment")" datatype="json" data="DataAssignmentFilter" />
                       <update url="@Url.Action("UpdateDateRestrictions", "DataRestrictionAssignment")" datatype="json" />
                   </transport>
                   <schema>
                       <hierarchical-model id="PrimaryId" children="HasChildren"></hierarchical-model>
                   </schema>
               </hierarchical-datasource>
           </kendo-treeview>

[Ivan Danchev]

Hello jovaughn,

I've tested the scenario where a single child node is returned as checked and at my end its parent was shown as unchecked, whereas it should be in indeterminate state, since one of its children is checked and there others are unchecked. We will investigate whether this is a change in behavior introduced in the latest release and will write back.

Regards,
Ivan Danchev
Progress Telerik

[Ivan Danchev]

Hello jovaughn,

After further investigation, we decided to log the issue for fixing. I've created a Bug Report item on your behalf in the Feedback Portal: https://feedback.telerik.com/aspnet-core-ui/1471584-treeview-parent-node-checkbox-state-is-not-properly-updated-core

You can track this item to get notifications on changes in its status. A workaround is included in the bug report details.

I've updated your Telerik points for reporting this issue.

Regards,
Ivan Danchev
Progress Telerik