TextBox.SelectionChanging Event

Definition

Occurs when the text selection starts to change.

// 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
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"/>

Windows 10 requirements

Device family
Windows 10, version 1809 (introduced in 10.0.17763.0)
API contract
Windows.Foundation.UniversalApiContract (introduced in v7.0)

Applies to

See also