ItemsRepeater.ElementIndexChanged 事件

// Register
event_token ElementIndexChanged(TypedEventHandler<ItemsRepeater, ItemsRepeaterElementIndexChangedEventArgs const&> const& handler) const;

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

// Revoke with event_revoker
ItemsRepeater::ElementIndexChanged_revoker ElementIndexChanged(auto_revoke_t, TypedEventHandler<ItemsRepeater, ItemsRepeaterElementIndexChangedEventArgs const&> const& handler) const;

public event TypedEventHandler<ItemsRepeater,ItemsRepeaterElementIndexChangedEventArgs> ElementIndexChanged;

function onElementIndexChanged(eventArgs) { /* Your code */ }
itemsRepeater.addEventListener("elementindexchanged", onElementIndexChanged);
itemsRepeater.removeEventListener("elementindexchanged", onElementIndexChanged);
- or -
itemsRepeater.onelementindexchanged = onElementIndexChanged;

Public Custom Event ElementIndexChanged As TypedEventHandler(Of ItemsRepeater, ItemsRepeaterElementIndexChangedEventArgs) 

事件類型

備註

當你使用 ItemsRepeater 建立一個更複雜的控制項，支援子元素的特定互動（例如 選取 或 點擊）時，能夠保留一個 up-to-日期的識別碼會很有用。

此事件會針對每個實現的 UIElement，且該項目的索引有所變動時被觸發。 例如，當資料來源新增或移除其他項目時，排序後面項目的索引也會受到影響。