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CodeGotoStatement Class

Represents a goto statement.

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

[SerializableAttribute] 
[ComVisibleAttribute(true)] 
[ClassInterfaceAttribute(ClassInterfaceType.AutoDispatch)] 
public class CodeGotoStatement : CodeStatement
/** @attribute SerializableAttribute() */ 
/** @attribute ComVisibleAttribute(true) */ 
/** @attribute ClassInterfaceAttribute(ClassInterfaceType.AutoDispatch) */ 
public class CodeGotoStatement extends CodeStatement
SerializableAttribute 
ComVisibleAttribute(true) 
ClassInterfaceAttribute(ClassInterfaceType.AutoDispatch) 
public class CodeGotoStatement extends CodeStatement
Not applicable.

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 = new CodeTypeDeclaration("Type1");            
// Declares an entry point method.
CodeEntryPointMethod entry1 = new CodeEntryPointMethod();                        
type1.Members.Add( entry1 );
// Adds a goto statement to continue program flow at the "JumpToLabel" label.
CodeGotoStatement goto1 = new CodeGotoStatement("JumpToLabel");
entry1.Statements.Add( goto1 );
// Invokes Console.WriteLine to print "Test Output", which is skipped by the goto statement.
CodeMethodInvokeExpression method1 = new CodeMethodInvokeExpression(
    new CodeTypeReferenceExpression("System.Console"), "WriteLine", new CodePrimitiveExpression("Test Output."));
entry1.Statements.Add( method1 );
// Declares a label named "JumpToLabel" associated with a method to output a test string using Console.WriteLine.
CodeMethodInvokeExpression method2 = new CodeMethodInvokeExpression(
    new CodeTypeReferenceExpression("System.Console"), "WriteLine", new CodePrimitiveExpression("Output from labeled statement."));
CodeLabeledStatement label1 = new CodeLabeledStatement("JumpToLabel", new 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.");
//        }
//    }

// Declares a type to contain the example code.
CodeTypeDeclaration type1 = new CodeTypeDeclaration("Type1");
// Declares an entry point method.
CodeEntryPointMethod entry1 = new CodeEntryPointMethod();
type1.get_Members().Add(entry1);
// Adds a goto statement to continue program flow at the 
// "JumpToLabel" label.
CodeGotoStatement goto1 = new CodeGotoStatement("JumpToLabel");
entry1.get_Statements().Add(goto1);
// Invokes Console.WriteLine to print "Test Output", which is 
// skipped by the goto statement.
CodeMethodInvokeExpression method1 = new CodeMethodInvokeExpression
    (new CodeTypeReferenceExpression("System.Console"), 
    "WriteLine", new CodePrimitiveExpression[] { new 
    CodePrimitiveExpression("Test Output.") });
entry1.get_Statements().Add(method1);
// Declares a label named "JumpToLabel" associated with a method to
// output a test string using Console.WriteLine.
CodeMethodInvokeExpression method2 = new 
    CodeMethodInvokeExpression(new CodeTypeReferenceExpression(
    "System.Console"), "WriteLine", new CodePrimitiveExpression[] 
    { new CodePrimitiveExpression("Output from labeled statement.") });
CodeLabeledStatement label1 = new CodeLabeledStatement("JumpToLabel", 
    new CodeExpressionStatement(method2));
entry1.get_Statements().Add(label1);
// A VJ# 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.");
//     } //main
// } //Type1

System.Object
   System.CodeDom.CodeObject
     System.CodeDom.CodeStatement
      System.CodeDom.CodeGotoStatement

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

Windows 98, Windows Server 2000 SP4, Windows Millennium Edition, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.

.NET Framework

Supported in: 3.0, 2.0, 1.1, 1.0

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