ListViewBase.ChoosingGroupHeaderContainer 事件

定義

命名空間:

Microsoft.UI.Xaml.Controls

發生於要為數據群組選擇專案容器時。

// Register
event_token ChoosingGroupHeaderContainer(TypedEventHandler<ListViewBase, ChoosingGroupHeaderContainerEventArgs const&> const& handler) const;

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

// Revoke with event_revoker
ListViewBase::ChoosingGroupHeaderContainer_revoker ChoosingGroupHeaderContainer(auto_revoke_t, TypedEventHandler<ListViewBase, ChoosingGroupHeaderContainerEventArgs const&> const& handler) const;

public event TypedEventHandler<ListViewBase,ChoosingGroupHeaderContainerEventArgs> ChoosingGroupHeaderContainer;

function onChoosingGroupHeaderContainer(eventArgs) { /* Your code */ }
listViewBase.addEventListener("choosinggroupheadercontainer", onChoosingGroupHeaderContainer);
listViewBase.removeEventListener("choosinggroupheadercontainer", onChoosingGroupHeaderContainer);
- or -
listViewBase.onchoosinggroupheadercontainer = onChoosingGroupHeaderContainer;

Public Custom Event ChoosingGroupHeaderContainer As TypedEventHandler(Of ListViewBase, ChoosingGroupHeaderContainerEventArgs) 

事件類型

TypedEventHandler<ListViewBase,ChoosingGroupHeaderContainerEventArgs>

備註

您通常會處理此事件以啟用輔助功能。 群組標頭預設沒有設定無障礙名稱。 此事件提供標頭實例的存取權，並可讓您將 附加 AutomationProperties.Name 屬性設定為適當的值。