TextBox.BeforeTextChanging TextBox.BeforeTextChanging TextBox.BeforeTextChanging TextBox.BeforeTextChanging Event

Definition

Occurs synchronously when the text in the text box starts to change, but before the Text property is updated.

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

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

// Revoke with event_revoker
BeforeTextChanging_revoker BeforeTextChanging(auto_revoke_t, TypedEventHandler<TextBox, TextBoxBeforeTextChangingEventArgs> const& handler) const;
public event TypedEventHandler<TextBox, TextBoxBeforeTextChangingEventArgs> BeforeTextChanging
Public Event BeforeTextChanging As TypedEventHandler (Of TextBox, TextBoxBeforeTextChangingEventArgs)
<TextBox BeforeTextChanging="eventhandler"/>

See also