public AutoScrollHandler(Controls.ListBox target)
{
Target = target;
Binding B = new Binding("ItemsSource");
B.Source = Target;
BindingOperations.SetBinding(this, ItemsSourceProperty, B);
}
/// <summary>
/// Initializes a new instance of the <see cref="AutoScrollHandler"/> class.
/// </summary>
/// <param name="target">The target.</param>
public AutoScrollHandler(Controls.ListBox target)
{
this.target = target;
Binding b = new Binding("ItemsSource");
b.Source = this.target;
BindingOperations.SetBinding(this, ItemsSourcePropertyValue, b);
}
/// <summary>
/// Gets the automatic scroll.
/// </summary>
/// <param name="instance">The instance.</param>
/// <returns>true is auto scoll is enabled false otherwise.</returns>
public static bool GetAutoScroll(Controls.ListBox instance)
{
if (instance is null)
{
throw new ArgumentNullException(nameof(instance));
}
return((bool)instance.GetValue(AutoScrollProperty));
}
public static void SetAutoScroll(Controls.ListBox instance, bool value)
{
AutoScrollHandler OldHandler = (AutoScrollHandler)instance.GetValue(AutoScrollHandlerProperty);
if (OldHandler != null)
{
OldHandler.Dispose();
instance.SetValue(AutoScrollHandlerProperty, null);
}
instance.SetValue(AutoScrollProperty, value);
if (value)
{
instance.SetValue(AutoScrollHandlerProperty, new AutoScrollHandler(instance));
}
}
/// <summary>
/// Sets the automatic scroll.
/// </summary>
/// <param name="instance">The instance.</param>
/// <param name="value">Value to set for Automatic scroll.</param>
public static void SetAutoScroll(Controls.ListBox instance, bool value)
{
if (instance is null)
{
throw new ArgumentNullException(nameof(instance));
}
AutoScrollHandler oldHandler = (AutoScrollHandler)instance.GetValue(AutoScrollHandlerProperty);
if (oldHandler != null)
{
oldHandler.Dispose();
instance.SetValue(AutoScrollHandlerProperty, null);
}
instance.SetValue(AutoScrollProperty, value);
if (value)
{
instance.SetValue(AutoScrollHandlerProperty, new AutoScrollHandler(instance));
}
}
public static bool GetAutoScroll(Controls.ListBox instance)
{
return((bool)instance.GetValue(AutoScrollProperty));
}
