ItemsRepeater.ElementClearing 事件

定义

命名空间:

Microsoft.UI.Xaml.Controls

每次清除元素并可供重用时发生。

// Register
event_token ElementClearing(TypedEventHandler<ItemsRepeater, ItemsRepeaterElementClearingEventArgs const&> const& handler) const;

// Revoke with event_token
void ElementClearing(event_token const* cookie) const;

// Revoke with event_revoker
ItemsRepeater::ElementClearing_revoker ElementClearing(auto_revoke_t, TypedEventHandler<ItemsRepeater, ItemsRepeaterElementClearingEventArgs const&> const& handler) const;

public event TypedEventHandler<ItemsRepeater,ItemsRepeaterElementClearingEventArgs> ElementClearing;

function onElementClearing(eventArgs) { /* Your code */ }
itemsRepeater.addEventListener("elementclearing", onElementClearing);
itemsRepeater.removeEventListener("elementclearing", onElementClearing);
- or -
itemsRepeater.onelementclearing = onElementClearing;

Public Custom Event ElementClearing As TypedEventHandler(Of ItemsRepeater, ItemsRepeaterElementClearingEventArgs) 

事件类型

TypedEventHandler<ItemsRepeater,ItemsRepeaterElementClearingEventArgs>

注解

每次 清除元素时，都会立即引发此事件，例如当它超出已实现项的范围时。 元素在可供重复使用时 被清除 。