Determines whether the field may be omitted from the encoded data.
DISPID (Dispatch ID):
For more information, see IsOptional in .NET Reference.
 
            
DISPID (Dispatch ID):
For more information, see IsOptional in .NET Reference.
| Visual Basic | 
|---|
| Public Property IsOptional As Boolean | 
See IsOptional in .NET Reference.
For remarks, see IsOptional in .NET Reference.
For examples, see IsOptional in .NET Reference.