Data.Bind.Components.TExpressionDirection

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[–] Properties Type: enum Visibility: public Source:

Data.Bind.Components.pas

Data.Bind.Components.hpp

Unit: Data.Bind.Components Parent: Data.Bind.Components

Delphi

TExpressionDirection = (dirSourceToControl, dirControlToSource, dirBidirectional);

C++

enum DECLSPEC_DENUM TExpressionDirection : unsigned char { dirSourceToControl, dirControlToSource, dirBidirectional };

Description

Enumeration of binding expression directions.

Item	Description
dirSourceToControl	The bindings expression is unidirectional, binding a property of the source object to a property of the control object. When the source property changes, the control property updates accordingly, but not in reverse.
dirControlToSource	The bindings expression is unidirectional, binding a property of the control object to a property of the source object. When the control property changes, the source property updates accordingly, but not in reverse.
dirBidirectional	The bindings expression is bidirectional. Whenever one of the source or control's bound properties changes, the other one is automatically updated.

See Also

• Data.Bind.Components.TCustomBindExpression