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XamlDirect.RemoveFromCollection(IXamlDirectObject, IXamlDirectObject) 方法

  • 參考

定義

命名空間:
Windows.UI.Xaml.Core.Direct
編輯

嘗試從指定的 IXamlDirectObject 集合中移除值。

public:
 virtual bool RemoveFromCollection(IXamlDirectObject ^ xamlDirectObject, IXamlDirectObject ^ value) = RemoveFromCollection;
bool RemoveFromCollection(IXamlDirectObject const& xamlDirectObject, IXamlDirectObject const& value);
public bool RemoveFromCollection(IXamlDirectObject xamlDirectObject, IXamlDirectObject value);
function removeFromCollection(xamlDirectObject, value)
Public Function RemoveFromCollection (xamlDirectObject As IXamlDirectObject, value As IXamlDirectObject) As Boolean

參數

xamlDirectObject
IXamlDirectObject

參考特定的 IXamlDirectObject 集合。

value
IXamlDirectObject

參考要從集合中移除的 IXamlDirectObject 值。

傳回

Boolean

bool

如果值存在，則為true。 如果值不存在，則為false。

範例

下列範例示範如何使用 XamlDirect API 從集合中移除值。

XamlDirect xd = XamlDirect.GetDefault();

IXamlDirectObject relativePanel = xd.CreateInstance(XamlTypeIndex.RelativePanel);

IXamlDirectObject childrenCollection = xd.GetXamlDirectObjectProperty(relativePanel, XamlPropertyIndex.Panel_Children);

IXamlDirectObject button = xd.CreateInstance(XamlTypeIndex.Button);
xd.AddToCollection(childrenCollection, button);

xd.RemoveFromCollection(childrenCollection, button); // Should return true
xd.RemoveFromCollection(childrenCollection, button); // Should return false

XamlDirect^ xd = XamlDirect::GetDefault();

IXamlDirectObject^ relativePanel = xd->CreateInstance(XamlTypeIndex::RelativePanel);

IXamlDirectObject^ childrenCollection = xd->GetXamlDirectObjectProperty(relativePanel, XamlPropertyIndex::Panel_Children);

IXamlDirectObject^ button = xd->CreateInstance(XamlTypeIndex::Button);
xd->AddToCollection(childrenCollection, button);

xd->RemoveFromCollection(childrenCollection, button); // Should return true
xd->RemoveFromCollection(childrenCollection, button); // Should return false

適用於

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