TextBox.SelectionChanging Evento

Definição

Namespace:

Windows.UI.Xaml.Controls

Ocorre quando a seleção de texto começa a ser alterada.

// Register
event_token SelectionChanging(TypedEventHandler<TextBox, TextBoxSelectionChangingEventArgs const&> const& handler) const;

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

// Revoke with event_revoker
TextBox::SelectionChanging_revoker SelectionChanging(auto_revoke_t, TypedEventHandler<TextBox, TextBoxSelectionChangingEventArgs const&> const& handler) const;

public event TypedEventHandler<TextBox,TextBoxSelectionChangingEventArgs> SelectionChanging;

function onSelectionChanging(eventArgs) { /* Your code */ }
textBox.addEventListener("selectionchanging", onSelectionChanging);
textBox.removeEventListener("selectionchanging", onSelectionChanging);
- or -
textBox.onselectionchanging = onSelectionChanging;

Public Custom Event SelectionChanging As TypedEventHandler(Of TextBox, TextBoxSelectionChangingEventArgs) 

<TextBox SelectionChanging="eventhandler"/>

Tipo de evento

TypedEventHandler<TextBox,TextBoxSelectionChangingEventArgs>

Requisitos do Windows

Família de dispositivos	Windows 10, version 1809 (introduzida na 10.0.17763.0)
API contract	Windows.Foundation.UniversalApiContract (introduzida na v7.0)

Confira também

• TextBoxSelectionChangingEventArgs