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:
property Object^ NullValue {
	Object^ get();
	void set(Object^ value);
}

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
Available since 2.0
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