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SwitchCase Class

Represents one case of a SwitchExpression.

System.Object
  System.Linq.Expressions.SwitchCase

Namespace:  System.Linq.Expressions
Assembly:  System.Core (in System.Core.dll)

public sealed class SwitchCase

The SwitchCase type exposes the following members.

  NameDescription
Public propertyBodyGets the body of this case.
Public propertyTestValuesGets the values of this case. This case is selected for execution when the SwitchValue matches any of these values.
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  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 the Object 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. (Overrides Object.ToString().)
Public methodUpdateCreates a new expression that is like this one, but using the supplied children. If all of the children are the same, it will return this expression.
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The following example demonstrates how to create an expression that represents a switch statement without a default case by using the SwitchCase method.


// Add the following directive to the file:
// using System.Linq.Expressions;  

// An expression that represents the switch value.
ConstantExpression switchValue = Expression.Constant(2);

// This expression represents a switch statement 
// without a default case.
SwitchExpression switchExpr =
    Expression.Switch(
        switchValue,
        new SwitchCase[] {
               Expression.SwitchCase(
                   Expression.Call(
                       null,
                       typeof(Console).GetMethod("WriteLine", new Type[] { typeof(String) }),
                       Expression.Constant("First")
                   ),
                   Expression.Constant(1)
               ),
               Expression.SwitchCase(
                   Expression.Call(
                       null,
                       typeof(Console).GetMethod("WriteLine", new Type[] { typeof(String) }),
                       Expression.Constant("Second")
                   ),
                   Expression.Constant(2)
               )
           }
    );

// The following statement first creates an expression tree,
// then compiles it, and then runs it.
Expression.Lambda<Action>(switchExpr).Compile()();

// This code example produces the following output:
//
// Second


Silverlight

Supported in: 5, 4

For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.

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

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