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BoundField::ConvertEmptyStringToNull Property

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

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

public:
virtual property bool ConvertEmptyStringToNull {
	bool get ();
	void set (bool value);
}

Property Value

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

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.

NoteNote

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

The following code example demonstrates how to use the ConvertEmptyStringToNull property to specify that an empty string ("") field value should automatically be converted to null.

No code example is currently available or this language may not be supported.

.NET Framework

Supported in: 4, 3.5, 3.0, 2.0

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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