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DynamicField.ConvertEmptyStringToNull Property

Gets or sets a value that indicates whether empty string values ("") are automatically converted to null values when the data field is updated in the data source.

Namespace:  System.Web.DynamicData
Assembly:  System.Web.DynamicData (in System.Web.DynamicData.dll)

abstract ConvertEmptyStringToNull : bool with get, set 
override ConvertEmptyStringToNull : bool with get, set

Property Value

Type: System.Boolean
true to automatically convert empty string values to null values; otherwise, false. The default is false.



Sometimes the user might enter an empty string for a field value when updating or inserting records. Use the ConvertEmptyStringToNull property to specify whether an empty string value is automatically converted to null when the data field is updated in the data source.

By default, a DynamicField object displays null values as empty strings. To display a different value, set the NullDisplayText property.


The Parameter object of the data source control that the parent control of DynamicField object is bound to also has a property named Parameter.ConvertEmptyStringToNull. This property performs the same function. Make sure that both properties are set appropriately.

.NET Framework

Supported in: 4.5.2, 4.5.1, 4.5, 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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