TextBox.BeforeTextChanging 이벤트

정의

네임스페이스:

Windows.UI.Xaml.Controls

텍스트 상자의 텍스트가 변경되기 시작하지만 Text 속성이 업데이트되기 전에 동기적으로 발생합니다.

// Register
event_token BeforeTextChanging(TypedEventHandler<TextBox, TextBoxBeforeTextChangingEventArgs const&> const& handler) const;

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

// Revoke with event_revoker
TextBox::BeforeTextChanging_revoker BeforeTextChanging(auto_revoke_t, TypedEventHandler<TextBox, TextBoxBeforeTextChangingEventArgs const&> const& handler) const;

public event TypedEventHandler<TextBox,TextBoxBeforeTextChangingEventArgs> BeforeTextChanging;

function onBeforeTextChanging(eventArgs) { /* Your code */ }
textBox.addEventListener("beforetextchanging", onBeforeTextChanging);
textBox.removeEventListener("beforetextchanging", onBeforeTextChanging);
- or -
textBox.onbeforetextchanging = onBeforeTextChanging;

Public Custom Event BeforeTextChanging As TypedEventHandler(Of TextBox, TextBoxBeforeTextChangingEventArgs) 

<TextBox BeforeTextChanging="eventhandler"/>

이벤트 유형

TypedEventHandler<TextBox,TextBoxBeforeTextChangingEventArgs>

Windows 요구 사항

디바이스 패밀리	Windows 10 Fall Creators Update (10.0.16299.0에서 도입되었습니다.)
API contract	Windows.Foundation.UniversalApiContract (v5.0에서 도입되었습니다.)

추가 정보

• TextBoxBeforeTextChangingEventArgs