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RichEditBox.SelectionChanging Ereignis

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Definition

Namespace:
Microsoft.UI.Xaml.Controls
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Tritt auf, wenn sich die Textauswahl zu ändern beginnt.

// Register
event_token SelectionChanging(TypedEventHandler<RichEditBox, RichEditBoxSelectionChangingEventArgs const&> const& handler) const;

// Revoke with event_token
void SelectionChanging(event_token const* cookie) const;

// Revoke with event_revoker
RichEditBox::SelectionChanging_revoker SelectionChanging(auto_revoke_t, TypedEventHandler<RichEditBox, RichEditBoxSelectionChangingEventArgs const&> const& handler) const;
public event TypedEventHandler<RichEditBox,RichEditBoxSelectionChangingEventArgs> SelectionChanging;
function onSelectionChanging(eventArgs) { /* Your code */ }
richEditBox.addEventListener("selectionchanging", onSelectionChanging);
richEditBox.removeEventListener("selectionchanging", onSelectionChanging);
- or -
richEditBox.onselectionchanging = onSelectionChanging;
Public Custom Event SelectionChanging As TypedEventHandler(Of RichEditBox, RichEditBoxSelectionChangingEventArgs) 
<RichEditBox SelectionChanging="eventhandler"/>

Ereignistyp

TypedEventHandler<RichEditBox,RichEditBoxSelectionChangingEventArgs>

Gilt für: