This documentation is archived and is not being maintained.

CodeGotoStatement Class

Represents a goto statement.

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

[SerializableAttribute]
[ClassInterfaceAttribute(ClassInterfaceType::AutoDispatch)]
[ComVisibleAttribute(true)]
public ref class CodeGotoStatement : public CodeStatement

The CodeGotoStatement type exposes the following members.

  NameDescription
Public methodCodeGotoStatement()Initializes a new instance of the CodeGotoStatement class.
Public methodCodeGotoStatement(String)Initializes a new instance of the CodeGotoStatement class using the specified label name.
Top

  NameDescription
Public propertyEndDirectivesGets a CodeDirectiveCollection object that contains end directives. (Inherited from CodeStatement.)
Public propertyLabelGets or sets the name of the label at which to continue program execution.
Public propertyLinePragmaGets or sets the line on which the code statement occurs. (Inherited from CodeStatement.)
Public propertyStartDirectivesGets a CodeDirectiveCollection object that contains start directives. (Inherited from CodeStatement.)
Public propertyUserDataGets the user-definable data for the current object. (Inherited from CodeObject.)
Top

  NameDescription
Public methodEquals(Object)Determines whether the specified Object is equal to the current Object. (Inherited from Object.)
Protected methodFinalizeAllows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection. (Inherited from Object.)
Public methodGetHashCodeServes as a hash function for a particular type. (Inherited from Object.)
Public methodGetTypeGets the Type of the current instance. (Inherited from Object.)
Protected methodMemberwiseCloneCreates a shallow copy of the current Object. (Inherited from Object.)
Public methodToStringReturns a string that represents the current object. (Inherited from Object.)
Top

CodeGotoStatement can be used to represent a goto statement, which is used in some languages to redirect program flow to a specified label.

The Label property indicates the name of the label at which to continue program execution.

NoteNote

Not all languages support goto statements. Call the Supports method with the GotoStatements flag to determine whether a code generator supports goto statements.

The following example code demonstrates use of a CodeGotoStatement and a CodeLabeledStatement to redirect program flow.


// Declares a type to contain the example code.
CodeTypeDeclaration^ type1 = gcnew CodeTypeDeclaration( "Type1" );

// Declares an entry point method.
CodeEntryPointMethod^ entry1 = gcnew CodeEntryPointMethod;
type1->Members->Add( entry1 );

// Adds a goto statement to continue program flow at the "JumpToLabel" label.
CodeGotoStatement^ goto1 = gcnew CodeGotoStatement( "JumpToLabel" );
entry1->Statements->Add( goto1 );

// Invokes Console.WriteLine to print "Test Output", which is skipped by the goto statement.
array<CodeExpression^>^temp = {gcnew CodePrimitiveExpression( "Test Output." )};
CodeMethodInvokeExpression^ method1 = gcnew CodeMethodInvokeExpression( gcnew CodeTypeReferenceExpression( "System.Console" ),"WriteLine",temp );
entry1->Statements->Add( method1 );

// Declares a label named "JumpToLabel" associated with a method to output a test string using Console.WriteLine.
array<CodeExpression^>^temp2 = {gcnew CodePrimitiveExpression( "Output from labeled statement." )};
CodeMethodInvokeExpression^ method2 = gcnew CodeMethodInvokeExpression( gcnew CodeTypeReferenceExpression( "System.Console" ),"WriteLine",temp2 );
CodeLabeledStatement^ label1 = gcnew CodeLabeledStatement( "JumpToLabel",gcnew CodeExpressionStatement( method2 ) );
entry1->Statements->Add( label1 );

// A C# code generator produces the following source code for the preceeding example code:
//    public class Type1 
//    {
//        
//        public static void Main() 
//        {
//            goto JumpToLabel;
//            System.Console.WriteLine("Test Output");
//            JumpToLabel:
//            System.Console.WriteLine("Output from labeled statement.");
//        }
//    }


.NET Framework

Supported in: 4, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.
Show: