Error assigning null to a nullable int - “The value 'null' is not valid for property”

Question

I have this property in my view model:

[DisplayName(\"Region\")]
public int? RegionId { get; set; }

I pass my view model to my controller,

Answer 1

See here: ModelState validation fails for nullable types

The string "null" may be being passed. In my scenario I updated to an empty string "" and resolved this error.