private static void OnTextPropertyChanged(DependencyObject o, DependencyPropertyChangedEventArgs e)
{
SearchTextBox stb = o as SearchTextBox;
if (stb != null)
{
stb.UpdateSearchButtonIsEnabled();
}
}
private static void OnInstantSearchDelayChanged(DependencyObject o, DependencyPropertyChangedEventArgs e)
{
SearchTextBox stb = o as SearchTextBox;
if (stb != null)
{
stb._searchDelayTimer.Interval = ((Duration)e.NewValue).TimeSpan;
stb._searchDelayTimer.Stop();
}
}
private static void OnAllowEmptySearchesChanged(DependencyObject o, DependencyPropertyChangedEventArgs e)
{
SearchTextBox stb = o as SearchTextBox;
bool allowEmptySearches = (bool)e.NewValue;
if (stb != null && stb._searchButtonHost != null)
{
if (allowEmptySearches)
{
stb._searchButtonHost.IsEnabled = stb.Command?.CanExecute(stb.CommandParameter) ?? true;
}
else
{
stb.UpdateSearchButtonIsEnabled();
}
}
}
