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ComboBox Fails to Preselect and Trigger ValueChanged When Used with Nullable Enum in Generic Component

When using ComboBox with a custom component and binding it to an enum type (via generics),  does not trigger the ValueChanged event on user interaction.

Sample : https://www.syncfusion.com/downloads/support/directtrac/general/ze/SyncfusionBlazorApp1

This happens only when:
  • You use TEnum  as TValue
  • The binding uses the pattern:
  • You're wrapping the ComboBox in a generic component (@typeparam TEnum)
Replication : 
1) Run the sample 
2) see the value - ValueChanged event is not triggers 

Expected : 
The ValueChanged event is triggered when the user selects a different value.
Current Output: 
The ValueChanged event is not triggered when selecting a new value.