TypePresenter.AllowNull Property   
Definition
Important
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Gets or sets a value that indicates whether the string (null) will be shown in the type presenter, which allows you to select null for the type.
public:
 property bool AllowNull { bool get(); void set(bool value); };public bool AllowNull { get; set; }member this.AllowNull : bool with get, setPublic Property AllowNull As BooleanProperty Value
true if the property can be null; otherwise, false.