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Binding.NullValue Property

Definition

Namespace:
System.Windows.Forms
Assembly:
System.Windows.Forms.dll
Source:
Binding.cs
Source:
Binding.cs
Source:
Binding.cs
Source:
Binding.cs
Source:
Binding.cs

Important

Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.

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

public:
 property System::Object ^ NullValue { System::Object ^ get(); void set(System::Object ^ value); };
public object NullValue { get; set; }
public object? NullValue { get; set; }
member this.NullValue : obj with get, set
Public Property NullValue As Object

Property Value

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

Remarks

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.

Applies to

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