ApplicationSettingsBase.GetPreviousVersion Method

Returns the value of the named settings property for the previous version of the same application.

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

public Object GetPreviousVersion(
	string propertyName
)

Parameters

propertyName
Type: System.String

A String containing the name of the settings property whose value is to be returned.

Return Value

Type: System.Object
An Object containing the value of the specified SettingsProperty if found; otherwise, null.

ExceptionCondition
SettingsPropertyNotFoundException

The property does not exist. The property count is zero or the property cannot be found in the data store.

The GetPreviousVersion method is often used in conjunction with the Upgrade method when migrating application settings during the installation of a new version of an application.

.NET Framework

Supported in: 4.5.2, 4.5.1, 4.5, 4, 3.5, 3.0, 2.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

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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