internal void Initialize(TagsTextBoxFooter inline)
{
InputPlaceholder = inline;
InputPlaceholder.TextChanged += OnTextChanged;
ItemsWrapPanel = (TagsWrapPanel)ItemsPanelRoot;
InputPlaceholder.KeyDown += OnKeyDown;
ItemsWrapPanel.LayoutUpdated += OnWrapLayoutUpdated;
var bindPlaceholder = new Binding();
bindPlaceholder.Path = new PropertyPath("PlaceholderText");
bindPlaceholder.Source = this;
var bindCanShow = new Binding();
bindCanShow.Path = new PropertyPath("CanShowPlaceholder");
bindCanShow.Source = this;
//var bindText = new Binding();
//bindText.Path = new PropertyPath("Text");
//bindText.Source = InputPlaceholder;
//bindText.Mode = BindingMode.TwoWay;
InputPlaceholder.SetBinding(TextBox.PlaceholderTextProperty, bindPlaceholder);
InputPlaceholder.SetBinding(TagsTextBoxFooter.CanShowPlaceholderProperty, bindCanShow);
//SetBinding(TextProperty, bindText);
}
private static void OnItemHeightOrWidthPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
{
TagsWrapPanel source = (TagsWrapPanel)d;
double value = (double)e.NewValue;
// Ignore the change if requested
if (source._ignorePropertyChange)
{
source._ignorePropertyChange = false;
return;
}
// Validate the length (which must either be NaN or a positive,
// finite number)
if (!value.IsNaN() && ((value <= 0.0) || double.IsPositiveInfinity(value)))
{
// Reset the property to its original state before throwing
source._ignorePropertyChange = true;
source.SetValue(e.Property, (double)e.OldValue);
string message = string.Format(
CultureInfo.InvariantCulture,
"WrapPanel_OnItemHeightOrWidthPropertyChanged_InvalidValue",
value);
throw new ArgumentException(message, "value");
}
// The length properties affect measuring.
source.InvalidateMeasure();
}