TextBox.TextCompositionStarted 事件

定义

命名空间:

Microsoft.UI.Xaml.Controls

当用户开始通过输入法编辑器 (输入法) 撰写文本时发生。

// Register
event_token TextCompositionStarted(TypedEventHandler<TextBox, TextCompositionStartedEventArgs const&> const& handler) const;

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

// Revoke with event_revoker
TextBox::TextCompositionStarted_revoker TextCompositionStarted(auto_revoke_t, TypedEventHandler<TextBox, TextCompositionStartedEventArgs const&> const& handler) const;

public event TypedEventHandler<TextBox,TextCompositionStartedEventArgs> TextCompositionStarted;

function onTextCompositionStarted(eventArgs) { /* Your code */ }
textBox.addEventListener("textcompositionstarted", onTextCompositionStarted);
textBox.removeEventListener("textcompositionstarted", onTextCompositionStarted);
- or -
textBox.ontextcompositionstarted = onTextCompositionStarted;

Public Custom Event TextCompositionStarted As TypedEventHandler(Of TextBox, TextCompositionStartedEventArgs) 

<TextBox TextCompositionStarted="eventhandler"/>

事件类型

TypedEventHandler<TextBox,TextCompositionStartedEventArgs>

注解

有关事件数据，请参阅 TextCompositionStartedEventArgs。

仅当文本通过输入法编辑器 (IME) 撰写时，才会发生此事件。 文本合成事件按以下顺序发生：

• TextCompositionStarted
• 文本更改
• TextChanged
• TextCompositionChanged
• TextCompositionEnded

在 TextCompositionStarted 事件之后， TextChanging>TextChanged>TextCompositionChanged 事件周期可以在 TextCompositionEnded 事件发生之前多次发生。

另请参阅

• TextCompositionStartedEventArgs
• 输入法编辑器 (IME)