CodeParameterDeclarationExpression Class

Definition

Namespace:

System.CodeDom

Assembly:

System.CodeDom.dll

Represents a parameter declaration for a method, property, or constructor.

public ref class CodeParameterDeclarationExpression : System::CodeDom::CodeExpression

public class CodeParameterDeclarationExpression : System.CodeDom.CodeExpression

type CodeParameterDeclarationExpression = class
    inherit CodeExpression

Public Class CodeParameterDeclarationExpression
Inherits CodeExpression

Inheritance

Object

CodeObject

CodeExpression

CodeParameterDeclarationExpression

Examples

The following example demonstrates use of CodeParameterDeclarationExpression to declare parameters of a method using different FieldDirection field reference type specifiers.

// Declares a method.
CodeMemberMethod^ method1 = gcnew CodeMemberMethod;
method1->Name = "TestMethod";

// Declares a string parameter passed by reference.
CodeParameterDeclarationExpression^ param1 = gcnew CodeParameterDeclarationExpression( "System.String","stringParam" );
param1->Direction = FieldDirection::Ref;
method1->Parameters->Add( param1 );

// Declares a Int32 parameter passed by incoming field.
CodeParameterDeclarationExpression^ param2 = gcnew CodeParameterDeclarationExpression( "System.Int32","intParam" );
param2->Direction = FieldDirection::Out;
method1->Parameters->Add( param2 );

// A C# code generator produces the following source code for the preceeding example code:
//        private void TestMethod(ref string stringParam, out int intParam) {
//        }

// 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;
method1.Parameters.Add(param1);

// Declares a Int32 parameter passed by incoming field.
CodeParameterDeclarationExpression param2 = new CodeParameterDeclarationExpression("System.Int32", "intParam");
param2.Direction = FieldDirection.Out;
method1.Parameters.Add(param2);

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

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

           ' 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
           method1.Parameters.Add(param1)

           ' Declares a Int32 parameter passed by incoming field.
           Dim param2 As New CodeParameterDeclarationExpression("System.Int32", "intParam")
           param2.Direction = FieldDirection.Out
           method1.Parameters.Add(param2)

           ' 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

Remarks

CodeParameterDeclarationExpression can be used to represent code that declares a parameter for a method, property, or constructor.

The Name property specifies the name of the parameter. The Type property specifies the data type of the parameter. The Direction property specifies the direction modifier of the parameter. The CustomAttributes property specifies the attributes associated with the parameter.

Constructors

CodeParameterDeclarationExpression()	Initializes a new instance of the CodeParameterDeclarationExpression class.
CodeParameterDeclarationExpression(CodeTypeReference, String)	Initializes a new instance of the CodeParameterDeclarationExpression class using the specified parameter type and name.
CodeParameterDeclarationExpression(String, String)	Initializes a new instance of the CodeParameterDeclarationExpression class using the specified parameter type and name.
CodeParameterDeclarationExpression(Type, String)	Initializes a new instance of the CodeParameterDeclarationExpression class using the specified parameter type and name.

Properties

CustomAttributes	Gets or sets the custom attributes for the parameter declaration.
Direction	Gets or sets the direction of the field.
Name	Gets or sets the name of the parameter.
Type	Gets or sets the type of the parameter.
UserData	Gets the user-definable data for the current object. (Inherited from CodeObject)

Methods

Equals(Object)	Determines whether the specified object is equal to the current object. (Inherited from Object)
GetHashCode()	Serves as the default hash function. (Inherited from Object)
GetType()	Gets the Type of the current instance. (Inherited from Object)
MemberwiseClone()	Creates a shallow copy of the current Object. (Inherited from Object)
ToString()	Returns a string that represents the current object. (Inherited from Object)

See also

• CodeParameterDeclarationExpressionCollection