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MetaForeignKeyColumn::ExtractForeignKey Method

Saves the value of a foreign key in the specified dictionary.

Namespace:  System.Web.DynamicData
Assembly:  System.Web.DynamicData (in System.Web.DynamicData.dll)
public:
virtual void ExtractForeignKey(
	IDictionary^ dictionary, 
	String^ value
) sealed

Parameters

dictionary
Type: System.Collections::IDictionary

A dictionary object that contains the new values for a data field.

value
Type: System::String

The value of the foreign key.

The ExtractForeignKey method is used to save the value of a foreign key in the dictionary that contains all the new values for a data field. Typically, the ExtractForeignKey method is used when a new value is selected from a DropDownList control for the foreign key field.

.NET Framework

Supported in: 4.5.1, 4.5, 4, 3.5 SP1

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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