IXRComboBox::AddDropDownClosedHandler (Compact 2013)

项目
04/19/2017

3/28/2014

This method attaches a delegate to the DropDownClosed event for this UI element. When the DropDownClosed event is raised by this combo box, this delegate will be invoked.

Syntax

virtual HRESULT STDMETHODCALLTYPE AddDropDownClosedHandler(
    IXRDelegate<XREventArgs>* pDelegate
) = 0;

Parameters

pDelegate
[in] IXRDelegate<ArgType, [SenderType]> object that you want to attach to the DropDownClosed event, which is raised when the pop-up piece of the combo box closes.

The CreateDelegate function provides an easy way to create this IXRDelegate object.

Return Value

Returns an HRESULT that indicates success or failure.

Remarks

Multiple delegates can be attached to the same event.

To remove this delegate from the DropDownClosed event, call IXRComboBox::RemoveDropDownClosedHandler.

.NET Framework Equivalent

System.Windows.Controls.ComboBox

Requirements

Header	XamlRuntime.h
sysgen	SYSGEN_XAML_RUNTIME

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