TextBlock.SelectionChanged 事件

定義

命名空間:

Microsoft.UI.Xaml.Controls

文字選取變更時發生。

// Register
event_token SelectionChanged(RoutedEventHandler const& handler) const;

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

// Revoke with event_revoker
TextBlock::SelectionChanged_revoker SelectionChanged(auto_revoke_t, RoutedEventHandler const& handler) const;

public event RoutedEventHandler SelectionChanged;

function onSelectionChanged(eventArgs) { /* Your code */ }
textBlock.addEventListener("selectionchanged", onSelectionChanged);
textBlock.removeEventListener("selectionchanged", onSelectionChanged);
- or -
textBlock.onselectionchanged = onSelectionChanged;

Public Custom Event SelectionChanged As RoutedEventHandler 

<TextBlock SelectionChanged="eventhandler"/>

事件類型

RoutedEventHandler

備註

重要

如果使用鍵盤進行 TextBlock 內的文字選取，用戶必須先在前景中啟動插入 號流覽 (，然後按 F7) 。