MessageIsNull Method (String) | 
 
            Returns  true  if  the  value  of the field identified by Name is
            NULL.
            
 
    Namespace: 
   OBCOM.NetClient
    Assembly:
   OBCOM.NetClient (in OBCOM.NetClient.dll) Version: 40.82.5945.17884 (40.82.5945.17884)
Syntaxpublic bool IsNull(
	string fieldName
)
Public Function IsNull ( 
	fieldName As String
) As Boolean
Parameters
- fieldName
 - Type: SystemString
The name of the field. 
Return Value
Type: 
Booleantrue if the value of the field identified by Name is 
NULL.
            
Exceptions| Exception | Condition | 
|---|
| InvalidOperationException | 
            If the Message has no Layout, or if the required field is not defined in
            the Layout of the Message.
             | 
RemarksA field value is said to be NULL if it's first character is
            the special character NO-DATA (0x1A).
This  method  has  the same effect as calling IsNull(fieldName,
            0).
See Also