CodeArgumentReferenceExpression Class

Definition

Namespace:

System.CodeDom

Assembly:

System.CodeDom.dll

Source:

CodeArgumentReferenceExpression.cs

Represents a reference to the value of an argument passed to a method.

public ref class CodeArgumentReferenceExpression : System::CodeDom::CodeExpression

public class CodeArgumentReferenceExpression : System.CodeDom.CodeExpression

type CodeArgumentReferenceExpression = class
    inherit CodeExpression

Public Class CodeArgumentReferenceExpression
Inherits CodeExpression

Inheritance

Object

CodeObject

CodeExpression

CodeArgumentReferenceExpression

Examples

The following example code defines a method that invokes Console.WriteLine to output the string parameter passed to the method. A CodeArgumentReferenceExpression references the argument passed to the method by method parameter name.

// Declare a method that accepts a string parameter named text.
CodeMemberMethod^ cmm = gcnew CodeMemberMethod;
cmm->Parameters->Add( gcnew CodeParameterDeclarationExpression( "String","text" ) );
cmm->Name = "WriteString";
cmm->ReturnType = gcnew CodeTypeReference( "System::Void" );
array<CodeExpression^>^ce = {gcnew CodeArgumentReferenceExpression( "test1" )};

// Create a method invoke statement to output the string passed to the method.
CodeMethodInvokeExpression^ cmie = gcnew CodeMethodInvokeExpression( gcnew CodeTypeReferenceExpression( "Console" ),"WriteLine",ce );

// Add the method invoke expression to the method's statements collection.
cmm->Statements->Add( cmie );

// A C++ code generator produces the following source code for the preceeding example code:
// private:
//  void WriteString(String text) {
//       Console::WriteLine(text);
// }

// Declare a method that accepts a string parameter named text.
CodeMemberMethod cmm = new CodeMemberMethod();
cmm.Parameters.Add( new CodeParameterDeclarationExpression("String", "text") );
cmm.Name = "WriteString";
cmm.ReturnType = new CodeTypeReference("System.Void");

// Create a method invoke statement to output the string passed to the method.
CodeMethodInvokeExpression cmie = new CodeMethodInvokeExpression( new CodeTypeReferenceExpression("Console"), "WriteLine", new CodeArgumentReferenceExpression("text") );

// Add the method invoke expression to the method's statements collection.
cmm.Statements.Add( cmie );

// A C# code generator produces the following source code for the preceeding example code:
//        private void WriteString(String text)
//        {
//            Console.WriteLine(text);
//        }

 ' Declare a method that accepts a string parameter named text.
 Dim cmm As New CodeMemberMethod()
 cmm.Parameters.Add(New CodeParameterDeclarationExpression("String", "text"))
 cmm.Name = "WriteString"
 cmm.ReturnType = New CodeTypeReference("System.Void")
 
 ' Create a method invoke statement to output the string passed to the method.
 Dim cmie As New CodeMethodInvokeExpression(New CodeTypeReferenceExpression("Console"), "WriteLine", New CodeArgumentReferenceExpression("text"))
 
 ' Add the method invoke expression to the method's statements collection.
 cmm.Statements.Add(cmie)

 ' A Visual Basic code generator produces the following source code for the preceeding example code:
 '		Private Sub WriteString(ByVal [text] As [String])
 '			Console.WriteLine([text])
 '		End Sub

Remarks

CodeArgumentReferenceExpression can be used in a method to reference the value of a parameter that has been passed to the method.

The ParameterName property specifies the name of the parameter to reference.

Constructors

CodeArgumentReferenceExpression()	Initializes a new instance of the CodeArgumentReferenceExpression class.
CodeArgumentReferenceExpression(String)	Initializes a new instance of the CodeArgumentReferenceExpression class using the specified parameter name.

Properties

ParameterName	Gets or sets the name of the parameter this expression references.
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)