IsCompatibilitySwitchSet Method

AppDomain.IsCompatibilitySwitchSet Method (String)

 

Gets a nullable Boolean value that indicates whether any compatibility switches are set, and if so, whether the specified compatibility switch is set.

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

public Nullable<bool> IsCompatibilitySwitchSet(
	string value
)

Parameters

value
Type: System.String

The compatibility switch to test.

Return Value

Type: System.Nullable<Boolean>

A null reference (Nothing in Visual Basic) if no compatibility switches are set; otherwise, a Boolean value that indicates whether the compatibility switch that is specified by value is set.

This method tests whether the current application domain reverses breaking changes that were introduced in the .NET Framework 4. The following table provides examples of compatibility switches that can be set to restore the behavior of earlier versions of the .NET Framework.

Switch

Meaning

"NetFx40_LegacySecurityPolicy"

Code access security (CAS) for the .NET Framework 3.5 is enabled in this application domain. See <NetFx40_LegacySecurityPolicy> Element.

"NetFx40_Legacy20SortingBehavior"

String sorting defaults for the .NET Framework 3.5 are enabled in this application domain.Its success requires sort00001000.dll to be installed.

"NetFx40_Legacy40SortingBehavior"

String sorting defaults for the .NET Framework 4and Unicode 5.0 are enabled in this application domain. Its success requires sort00060101.dll to be installed.

"NetFx40_TimeSpanLegacyFormatMode"

TimeSpan formatting behavior for the .NET Framework 3.5 is enabled in this application domain.

.NET Framework
Available since 4.0
Silverlight
Available since 4.0
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