DataGridBoolColumn.AllowNull Property
Definition
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 a value indicating whether null values are allowed.
public:
property bool AllowNull { bool get(); void set(bool value); };
public bool AllowNull { get; set; }
member this.AllowNull : bool with get, set
Public Property AllowNull As Boolean
Property Value
true
if null values are allowed, otherwise, false
. The default is true
.
Examples
The following code example sets the AllowNull property.
void SetAllowNull()
{
DataGridBoolColumn^ myGridColumn = dynamic_cast<DataGridBoolColumn^>(dataGrid1->TableStyles[ 0 ]->GridColumnStyles[ 0 ]);
myGridColumn->AllowNull = false;
}
private void SetAllowNull(){
DataGridBoolColumn myGridColumn = (DataGridBoolColumn)dataGrid1.TableStyles[0].GridColumnStyles[0];
myGridColumn.AllowNull = false;
}
Private Sub SetAllowNull()
Dim myGridColumn As DataGridBoolColumn = CType(dataGrid1.TableStyles(0).GridColumnStyles(0), DataGridBoolColumn)
myGridColumn.AllowNull = False
End Sub
Remarks
When this property is set to false, the check boxes in the column have only two states: checked (true
) and unchecked (false
).
Applies to
See also
Comentários
https://aka.ms/ContentUserFeedback.
Em breve: Ao longo de 2024, eliminaremos os problemas do GitHub como o mecanismo de comentários para conteúdo e o substituiremos por um novo sistema de comentários. Para obter mais informações, consulteEnviar e exibir comentários de