The ValueChanged event doesn't fire when the DefaultText item is selected.
I have a dropdown containing associate names and I want the user to be able to remove the selected associate and choose the empty one (DefaultText). The ValueChange event will make an API call to remove the associate's id from the record.
In my example the type for Value is int?.
<TelerikDropDownList Class="tlk-dd-sm tlk-dd-bg-white w-100" Data="@associates" ValueField="AssociateId" TextField="FullName" ValueChanged="@((int? i) => WorkItemAssigneeChanged(i, workItem))" Value="@workItem.AssignedToAssociateId" DefaultText="" />