FieldDirection Enumeration


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Defines identifiers used to indicate the direction of parameter and argument declarations.

Namespace:   System.CodeDom
Assembly:  System (in System.dll)

Public Enumeration FieldDirection

Member nameDescription

An incoming field.


An outgoing field.


A field by reference.

FieldDirection allows for passing arguments to functions by reference, or using incoming or outgoing parameters.

The following example demonstrates use of FieldDirection to indicate the field direction types of the parameters of a method in a method declaration.

' Declares a method.
Dim method1 As New CodeMemberMethod()
method1.Name = "TestMethod"

' Declares a string parameter passed by reference.
Dim param1 As New CodeParameterDeclarationExpression("System.String", "stringParam")
param1.Direction = FieldDirection.Ref

' Declares a Int32 parameter passed by incoming field.
Dim param2 As New CodeParameterDeclarationExpression("System.Int32", "intParam")
param2.Direction = FieldDirection.Out

' A Visual Basic code generator produces the following source code for the preceeding example code:

'	 Private Sub TestMethod(ByRef stringParam As String, ByRef intParam As Integer)
'    End Sub

.NET Framework
Available since 1.1
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