private void OnPreviewKeyDown(object sender, KeyEventArgs e)
{
if (e.Key == Key.Space)
{
if (KeyboardHelper.AreKeyboardModifiersPressed(ModifierKeys.Control))
{
UpdateSuggestionBox(true);
e.Handled = true;
}
}
if (e.Key == Key.Down)
{
if (_suggestionListBox.SelectedIndex < _suggestionListBox.Items.Count)
{
_suggestionListBox.SelectedIndex = _suggestionListBox.SelectedIndex + 1;
}
}
if (e.Key == Key.Up)
{
if (_suggestionListBox.SelectedIndex > -1)
{
_suggestionListBox.SelectedIndex = _suggestionListBox.SelectedIndex - 1;
}
}
if (e.Key == Key.Enter || e.Key == Key.Tab)
{
// Commit the selection
UpdateSuggestionBox(false);
e.Handled = (e.Key == Key.Enter);
var binding = AssociatedObject.GetBindingExpression(TextBox.TextProperty);
if (binding != null)
{
binding.UpdateSource();
}
}
if (e.Key == Key.Escape)
{
if (_popup.IsOpen)
{
// Cancel the selection
UpdateSuggestionBox(false);
_isUpdatingAssociatedObject = true;
AssociatedObject.Text = _valueAtSuggestionBoxOpen;
e.Handled = true;
}
}
}
/// <summary>
/// Called when the specified key is pressed.
/// </summary>
/// <param name="sender">The sender.</param>
/// <param name="e">The <see cref="System.Windows.Input.KeyEventArgs"/> instance containing the event data.</param>
private void OnKeyUp(object sender, KeyEventArgs e)
{
if (e.Key == Key)
{
if (CanExecuteCommand())
{
ExecuteCommand();
#if NET
e.Handled = true;
#endif
}
}
}
/// <summary>
/// Called when the specified key is pressed.
/// </summary>
/// <param name="sender">The sender.</param>
/// <param name="e">The key event args instance containing the event data.</param>
private void OnKeyDown(object sender, KeyEventArgs e)
{
if (!IsEnabled)
{
return;
}
if (e.Handled)
{
return;
}
if (e.Key == Key)
{
if (CanExecuteCommand())
{
ExecuteCommand();
e.Handled = true;
}
}
}