Hi Ansa,
Thanks for contacting Syncfusion support.
We have checked your query. You can achieve your requirement (“How to make tree view in pop up which have check boxes and multi selection too.”) by using ShowCheckbox and AllowMultiSelection property in TreeView component. Please refer the below code example
@(Html.EJ().TreeView("tree") .TreeViewFields(s => s.Datasource((IEnumerable<datas>)ViewBag.datasource).Id("id").ParentId("pid") .Text("name").HasChild("hasChild").Expanded("expanded")) .ShowCheckbox(true).AllowMultiSelection(true)) |
Based on your requirement, we have prepared the sample and attached in the below link.
Please let us know if you need further assistance on this.
Regards,
Karthik R