MachineKeyValidationConverter.ConvertFrom Method (ITypeDescriptorContext, CultureInfo, Object)

Converts a string to the equivalent MachineKeyValidation value.

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

public override Object ConvertFrom(
	ITypeDescriptorContext ctx,
	CultureInfo ci,
	Object data


Type: System.ComponentModel.ITypeDescriptorContext

This parameter is not used.

Type: System.Globalization.CultureInfo

This parameter is not used.

Type: System.Object

The string to convert.

Return Value

Type: System.Object
The equivalent MachineKeyValidation value.


The data is not one of the expected strings.

This method will throw an ArgumentException exception if the data parameter does not refer to one of the following strings:

  • SHA1

  • MD5

  • 3DES

  • AES

.NET Framework

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

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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