The “X” property on “Y” could not be set to a 'null' value. You must set this property to a non-null value of type 'Int32'

Question

When I run my application and I click a specific button I get the error:

\"The \"X\" property on \"Y\" could not be set to a \'null\' value. You must set thi         


        

Answer 1

Check your model & database both should be defined accordingly....

public Int32? X { get; set; } ----> Nullable Accordingly in DB 'X' should be Nullable = True

or

public Int32 X { get; set; } ----> not Nullable Accordingly in DB 'X' should be Nullable = false