本文整理汇总了C#中FrameworkElement.ClearValue方法的典型用法代码示例。如果您正苦于以下问题：C# FrameworkElement.ClearValue方法的具体用法？C# FrameworkElement.ClearValue怎么用？C# FrameworkElement.ClearValue使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类FrameworkElement的用法示例。
在下文中一共展示了FrameworkElement.ClearValue方法的3个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C#代码示例。
示例1: GetOrCreateBindingsList
private IList<IMvxUpdateableBinding> GetOrCreateBindingsList(FrameworkElement attachedObject)
{
var existing = attachedObject.GetValue(BindingsListProperty) as IList<IMvxUpdateableBinding>;
if (existing != null)
return existing;
// attach the list
var newList = new List<IMvxUpdateableBinding>();
attachedObject.SetValue(BindingsListProperty, newList);
// create a binding watcher for the list
#if WINDOWS_PHONE || WINDOWS_WPF
var binding = new System.Windows.Data.Binding();
#endif
#if NETFX_CORE
var binding = new Windows.UI.Xaml.Data.Binding();
#endif
bool attached = false;
Action attachAction = () =>
{
if (attached)
return;
BindingOperations.SetBinding(attachedObject, DataContextWatcherProperty, binding);
attached = true;
};
Action detachAction = () =>
{
if (!attached)
return;
#if WINDOWS_PHONE || NETFX_CORE
attachedObject.ClearValue(DataContextWatcherProperty);
#else
BindingOperations.ClearBinding(attachedObject, DataContextWatcherProperty);
#endif
attached = false;
};
attachAction();
attachedObject.Loaded += (o, args) =>
{
attachAction();
};
attachedObject.Unloaded += (o, args) =>
{
detachAction();
};
return newList;
}示例2: AddParentMapHandlers
/// <summary>
/// Helper method to work around missing property value inheritance in Silverlight and Windows Runtime.
/// Adds Loaded and Unloaded handlers to the specified FrameworkElement, which set and clear the value
/// of the MapPanel.ParentMap attached property.
/// </summary>
public static void AddParentMapHandlers(FrameworkElement element)
{
element.Loaded += (s, e) => GetParentMap(element);
element.Unloaded += (s, e) => element.ClearValue(ParentMapProperty);
}示例3: ClearContainerForItem
public void ClearContainerForItem(object item, FrameworkElement container)
{
if (IsItemItsOwnContainerOverride(item))
{
return;
}
container.DataContext = BindingExpression.DisconnectedItem;
if (ContainsValue(ItemContainerStyleProperty) || ContainsValue(ItemContainerStyleSelectorProperty))
{
container.ClearValue(StyleProperty);
}
ClearContainerForItemOverride(item, container);
}