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 enum 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.
CodeMemberMethod method1 = new CodeMemberMethod();
method1.Name = "TestMethod";

// Declares a string parameter passed by reference.
CodeParameterDeclarationExpression param1 = new CodeParameterDeclarationExpression("System.String", "stringParam");
param1.Direction = FieldDirection.Ref;

// Declares a Int32 parameter passed by incoming field.
CodeParameterDeclarationExpression param2 = new CodeParameterDeclarationExpression("System.Int32", "intParam");
param2.Direction = FieldDirection.Out;

// A C# code generator produces the following source code for the preceeding example code:

//        private void TestMethod(ref string stringParam, out int intParam) {
//        }

.NET Framework
Available since 1.1
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