Dim findName As String = Nothing Dim findValue As Integer = 21 'the domain value for AGRICULTURE Dim fieldIndex As Integer = m_Feature.Fields.Field("my_field") 'this has a coded domain '--Check for my_field If fieldIndex <> -1 Then Dim domain As IDomain = m_Feature.Field(fieldIndex).Domain If domain.Type = esriDomainType.esriDTCodedValue Then Dim cvDomain As ICodedValueDomain2 = TryCast(domain, ICodedValueDomain2) For i = 0 To cvDomain.CodeCount - 1 If cvDomain.Value(i).Equals(findValue) Then findName = cvDomain.Name(i) Exit For End If Next i End If
When debugging it hangs up on the line with domain.Type, and it shows that the value of Domain is Nothing. The documentation shows that IField.Domain should return the default domain as an IDomain object. I know the field has a domain, but I don't know if it is default and am unable to change it. Does anyone have any advice on how I should access the domain of a field (of a selected feature in my case)?