Expression.Condition Method (Expression, Expression, Expression, Type)

 

Creates a ConditionalExpression that represents a conditional statement.

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

public static ConditionalExpression Condition(
	Expression test,
	Expression ifTrue,
	Expression ifFalse,
	Type type
)

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.

ifFalse
Type: System.Linq.Expressions.Expression

An Expression to set the IfFalse property equal to.

type
Type: System.Type

A Type to set the Type property equal to.

Return Value

Type: System.Linq.Expressions.ConditionalExpression

A ConditionalExpression that has the NodeType property equal to Conditional and the Test, IfTrue, and IfFalse properties set to the specified values.

This method allows explicitly unifying the result type of the conditional expression in cases where the types of ifTrue and ifFalse expressions are not equal. Types of both ifTrue and ifFalse must be implicitly reference assignable to the result type. The type is allowed to be Void.

Universal Windows Platform
Available since 8
.NET Framework
Available since 4.0
Portable Class Library
Supported in: portable .NET platforms
Silverlight
Available since 4.0
Windows Phone Silverlight
Available since 8.0
Windows Phone
Available since 8.1
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