IsNullOrEmpty Method
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Namespace: System.Dataflow
Assembly: System.Dataflow (in System.Dataflow.dll)
Syntax
'Declaration
PublicSharedFunctionIsNullOrEmpty ( _
idAsIdentifier _
) AsBoolean
'Usage
DimidAsIdentifierDimreturnValueAsBooleanreturnValue = Identifier.IsNullOrEmpty(id)
publicstaticboolIsNullOrEmpty(
Identifierid
)
public:
staticboolIsNullOrEmpty(
Identifier^ id
)
publicstaticfunctionIsNullOrEmpty(
id : Identifier
) : boolean
Parameters
- id
Type: System.Dataflow. . :: . .Identifier
Return Value
Type: System. . :: . .Boolean
.NET Framework Security
- Full trust for the immediate caller. This member cannot be used by partially trusted code. For more information, see https://msdn.microsoft.com/en-us/library/8skskf63(v=vs.85).