/// Called from <see cref="OnApplyTemplate"/>
private void OnApplyTemplateAutoSuggestBox(AutoSuggestBox auto)
{
if (_autoSuggestBox != null)
{
_autoSuggestBox.Loaded -= OnASBLoaded;
_autoSuggestBox.QuerySubmitted -= AutoSuggestBox_QuerySubmitted;
_autoSuggestBox.SuggestionChosen -= AutoSuggestBox_SuggestionChosen;
_autoSuggestBox.TextChanged -= AutoSuggestBox_TextChanged;
_autoSuggestBox.PointerEntered -= AutoSuggestBox_PointerEntered;
_autoSuggestBox.PointerExited -= AutoSuggestBox_PointerExited;
_autoSuggestBox.PointerCanceled -= AutoSuggestBox_PointerExited;
_autoSuggestBox.PointerCaptureLost -= AutoSuggestBox_PointerExited;
_autoSuggestBox.GotFocus -= AutoSuggestBox_GotFocus;
_autoSuggestBox.LostFocus -= AutoSuggestBox_LostFocus;
// Remove any previous QueryIcon
_autoSuggestBox.QueryIcon = null;
}
_autoSuggestBox = auto;
if (_autoSuggestBox != null)
{
_autoSuggestBox.Loaded += OnASBLoaded;
_autoSuggestBox.QuerySubmitted += AutoSuggestBox_QuerySubmitted;
_autoSuggestBox.SuggestionChosen += AutoSuggestBox_SuggestionChosen;
_autoSuggestBox.TextChanged += AutoSuggestBox_TextChanged;
_autoSuggestBox.PointerEntered += AutoSuggestBox_PointerEntered;
_autoSuggestBox.PointerExited += AutoSuggestBox_PointerExited;
_autoSuggestBox.PointerCanceled += AutoSuggestBox_PointerExited;
_autoSuggestBox.PointerCaptureLost += AutoSuggestBox_PointerExited;
_autoSuggestBox.GotFocus += AutoSuggestBox_GotFocus;
_autoSuggestBox.LostFocus += AutoSuggestBox_LostFocus;
// Setup a binding to the QueryIcon of the Parent if we're the last box.
if (Content is PretokenStringContainer str && str.IsLast)
{
var iconBinding = new Binding()
{
Source = Owner,
Path = new PropertyPath(nameof(Owner.QueryIcon)),
RelativeSource = new RelativeSource()
{
Mode = RelativeSourceMode.TemplatedParent
}
};
var iconSourceElement = new IconSourceElement();
iconSourceElement.SetBinding(IconSourceElement.IconSourceProperty, iconBinding);
_autoSuggestBox.QueryIcon = iconSourceElement;
}
}
}
protected override void OnApplyTemplate()
{
_alternateCloseButton = GetTemplateChild <Button>("AlternateCloseButton");
_actionButton = GetTemplateChild <Button>("ActionButton");
_title = GetTemplateChild <TextBlock>("Title");
_message = GetTemplateChild <TextBlock>("Message");
_hyperlinkButton = GetTemplateChild <HyperlinkButton>("HyperlinkButton");
_standardIcon = GetTemplateChild <IconSourceElement>("StandardIcon");
_userIcon = GetTemplateChild <IconSourceElement>("UserIcon");
_contentRootGrid = GetTemplateChild <Grid>("ContentRootGrid");
UpdateButtonsState();
UpdateSeverityState();
OnIsOpenChanged();
UpdateMargins();
_alternateCloseButton.Click += new RoutedEventHandler(OnCloseButtonClick);
_actionButton.Click += (s, e) => ActionButtonClick?.Invoke(s, e);
}
/// Called from <see cref="OnApplyTemplate"/>
private void OnApplyTemplateAutoSuggestBox(AutoSuggestBox auto)
{
if (_autoSuggestBox != null)
{
_autoSuggestBox.Loaded -= OnASBLoaded;
_autoSuggestBox.QuerySubmitted -= AutoSuggestBox_QuerySubmitted;
_autoSuggestBox.SuggestionChosen -= AutoSuggestBox_SuggestionChosen;
_autoSuggestBox.TextChanged -= AutoSuggestBox_TextChanged;
_autoSuggestBox.PointerEntered -= AutoSuggestBox_PointerEntered;
_autoSuggestBox.PointerExited -= AutoSuggestBox_PointerExited;
_autoSuggestBox.PointerCanceled -= AutoSuggestBox_PointerExited;
_autoSuggestBox.PointerCaptureLost -= AutoSuggestBox_PointerExited;
_autoSuggestBox.GotFocus -= AutoSuggestBox_GotFocus;
_autoSuggestBox.LostFocus -= AutoSuggestBox_LostFocus;
// Remove any previous QueryIcon
_autoSuggestBox.QueryIcon = null;
}
_autoSuggestBox = auto;
if (_autoSuggestBox != null)
{
_autoSuggestBox.Loaded += OnASBLoaded;
_autoSuggestBox.QuerySubmitted += AutoSuggestBox_QuerySubmitted;
_autoSuggestBox.SuggestionChosen += AutoSuggestBox_SuggestionChosen;
_autoSuggestBox.TextChanged += AutoSuggestBox_TextChanged;
_autoSuggestBox.PointerEntered += AutoSuggestBox_PointerEntered;
_autoSuggestBox.PointerExited += AutoSuggestBox_PointerExited;
_autoSuggestBox.PointerCanceled += AutoSuggestBox_PointerExited;
_autoSuggestBox.PointerCaptureLost += AutoSuggestBox_PointerExited;
_autoSuggestBox.GotFocus += AutoSuggestBox_GotFocus;
_autoSuggestBox.LostFocus += AutoSuggestBox_LostFocus;
// Setup a binding to the QueryIcon of the Parent if we're the last box.
if (Content is PretokenStringContainer str && str.IsLast)
{
// Workaround for https://github.com/microsoft/microsoft-ui-xaml/issues/2568
if (Owner.QueryIcon is FontIconSource fis &&
fis.ReadLocalValue(FontIconSource.FontSizeProperty) == DependencyProperty.UnsetValue)
{
// This can be expensive, could we optimize?
// Also, this is changing the FontSize on the IconSource (which could be shared?)
fis.FontSize = Owner.TryFindResource("TokenizingTextBoxIconFontSize") as double? ?? 16;
}
var iconBinding = new Binding()
{
Source = Owner,
Path = new PropertyPath(nameof(Owner.QueryIcon)),
RelativeSource = new RelativeSource()
{
Mode = RelativeSourceMode.TemplatedParent
}
};
var iconSourceElement = new IconSourceElement();
iconSourceElement.SetBinding(IconSourceElement.IconSourceProperty, iconBinding);
_autoSuggestBox.QueryIcon = iconSourceElement;
}
}
}
