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A constant representing a database column absent of data; that is, database null.
public static readonly Object DBNull
The DBNull field is equivalent to DBNull.Value, as the following example shows.
Supported in: 5, 4, 3
Silverlight for Windows Phone
Supported in: Windows Phone OS 7.1, Windows Phone OS 7.0
Supported in: Xbox 360, Windows Phone OS 7.0
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