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Convert.DBNull Field

A constant that represents a database column that is absent of data; that is, database null.

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

public static readonly Object DBNull

The DBNull field is equivalent to DBNull.Value, as the following example shows.


Console.WriteLine(Convert.DBNull.Equals(DBNull.Value));
// Displays True.


.NET Framework

Supported in: 4, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Portable Class Library

Supported in: Portable Class Library

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

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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