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Binding.NullValue Property

Gets or sets the Object to be set as the control property when the data source contains a DBNull value.

Namespace:  System.Windows.Forms
Assembly:  System.Windows.Forms (in System.Windows.Forms.dll)

public Object NullValue { get; set; }

Property Value

Type: System.Object
The Object to be set as the control property when the data source contains a DBNull value. The default is null.

The data source must contain DBNull for the NullValue property to be correctly applied. If the data source type is a type such as a string or integer the value of the NullValue property will be ignored. Also, the NullValue property is ignored if it is set to null.

A null value will be added to the data source when the control property is set to the object of NullValue. If NullValue is set to a string value, comparisons are case-insensitive.

.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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