bindable.md

description	title	ms.date	f1_keywords	helpviewer_keywords	ms.assetid
Learn more about: bindable	bindable (C++ COM Attribute)	10/02/2018	vc-attr.bindable	bindable attribute	a2360f92-927b-4af8-98cc-6eca7f4ec954

bindable

Indicates that the property supports data binding.

Syntax

[bindable]

Remarks

The bindable C++ attribute has the same functionality as the bindable MIDL attribute. You can use it on properties defined with the propget, propput, or propputref attributes, or you can manually define a bindable method.

The following MFC samples show the use of bindable:

• Controls Samples: MFC-Based ActiveX Controls

• CIRC Sample: ActiveX Control

• TESTHELP Sample: ActiveX Control with Tooltips and Help

Example

The following code shows how you can use bindable on a property:

// cpp_attr_ref_bindable.cpp
// compile with: /LD
#include <windows.h>
[
   uuid("479B29E3-9A2C-11D0-B696-00A0C903487A"), dispinterface, helpstring("property demo Interface")
]
__interface IPropDemo : IDispatch {

   [propget, id(1), bindable, displaybind, defaultbind, requestedit] HRESULT P1([out, retval] long *nSize);
   [propput, id(1), bindable, displaybind, defaultbind, requestedit] HRESULT P1([in] long nSize);
   [id(3), bindable, propget] HRESULT Object([out, retval] IDispatch **ppObj);
   [id(3), bindable, propputref] HRESULT Object([in] IDispatch* pObj);
   [id(-552), helpstring("method AboutBox")] HRESULT AboutBox();
};

[ module(name="PropDemoLib", uuid="479B29E2-9A2C-11D0-B696-00A0C903487A", version="1.0", helpstring="property demo") ];

Requirements

Attribute context	Value
Applies to	Interface method
Repeatable	No
Required attributes	None
Invalid attributes	None

For more information about the attribute contexts, see Attribute Contexts.

See also

IDL Attributes
Method Attributes
defaultbind
displaybind
immediatebind
requestedit