DataGridBoolColumn.AllowNull Property

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

• AllowDBNull
• NullValue
• Value