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Expression::IfThen Method

Creates a ConditionalExpression that represents a conditional block with an if statement.

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

public:
static ConditionalExpression^ IfThen(
	Expression^ test, 
	Expression^ ifTrue
)

Parameters

test
Type: System.Linq.Expressions::Expression

An Expression to set the Test property equal to.

ifTrue
Type: System.Linq.Expressions::Expression

An Expression to set the IfTrue property equal to.

Return Value

Type: System.Linq.Expressions::ConditionalExpression
A ConditionalExpression that has the NodeType property equal to Conditional and the Test, IfTrue, properties set to the specified values. The IfFalse property is set to default expression and the type of the resulting ConditionalExpression returned by this method is Void.

The following code example shows how to create an expression that represents a conditional block.

No code example is currently available or this language may not be supported.

.NET Framework

Supported in: 4.5, 4

.NET Framework Client Profile

Supported in: 4

Portable Class Library

Supported in: Portable Class Library

.NET for Windows Store apps

Supported in: Windows 8

.NET for Windows Phone apps

Supported in: Windows Phone 8.1, Windows Phone Silverlight 8.1, Windows Phone Silverlight 8

Windows Phone 8.1, Windows Phone 8, Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

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

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