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CheckBoxField.NullDisplayText Property

Gets or sets the text displayed for a field when the field's value is null. This property is not supported by the CheckBoxField class.

Namespace:  System.Web.UI.WebControls
Assembly:  System.Web (in System.Web.dll)

public override string NullDisplayText { get; set; }

Property Value

Type: System.String
The text displayed for a field with a value of null. This property is not supported, and throws a System.NotSupportedException.


An attempt is made to read or set the value of this property.

The NullDisplayText property is inherited from the BoundField class, but is not applicable to the CheckBoxField class. Any attempt to access the value of this property will throw a System.NotSupportedException exception.

.NET Framework

Supported in: 4.6, 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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