NSCollectionViewDelegateFlowLayout.DraggingSessionWillBegin 方法

参考

定义

命名空间:: AppKit

程序集:: Xamarin.Mac.dll

重要

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重载

DraggingSessionWillBegin(NSCollectionView, NSDraggingSession, CGPoint, NSIndexSet)
DraggingSessionWillBegin(NSCollectionView, NSDraggingSession, CGPoint, NSSet)

DraggingSessionWillBegin(NSCollectionView, NSDraggingSession, CGPoint, NSIndexSet)

[Foundation.Export("collectionView:draggingSession:willBeginAtPoint:forItemsAtIndexes:")]
[ObjCRuntime.Introduced(ObjCRuntime.PlatformName.MacOSX, 10, 7, ObjCRuntime.PlatformArchitecture.All, null)]
public virtual void DraggingSessionWillBegin (AppKit.NSCollectionView collectionView, AppKit.NSDraggingSession draggingSession, CoreGraphics.CGPoint screenPoint, Foundation.NSIndexSet indexes);

abstract member DraggingSessionWillBegin : AppKit.NSCollectionView * AppKit.NSDraggingSession * CoreGraphics.CGPoint * Foundation.NSIndexSet -> unit
override this.DraggingSessionWillBegin : AppKit.NSCollectionView * AppKit.NSDraggingSession * CoreGraphics.CGPoint * Foundation.NSIndexSet -> unit

参数

collectionView: NSCollectionView

draggingSession: NSDraggingSession

screenPoint: CGPoint

indexes: NSIndexSet

属性: ExportAttribute IntroducedAttribute

适用于

DraggingSessionWillBegin(NSCollectionView, NSDraggingSession, CGPoint, NSSet)

[Foundation.Export("collectionView:draggingSession:willBeginAtPoint:forItemsAtIndexPaths:")]
[ObjCRuntime.Introduced(ObjCRuntime.PlatformName.MacOSX, 10, 11, ObjCRuntime.PlatformArchitecture.All, null)]
public virtual void DraggingSessionWillBegin (AppKit.NSCollectionView collectionView, AppKit.NSDraggingSession session, CoreGraphics.CGPoint screenPoint, Foundation.NSSet indexPaths);

abstract member DraggingSessionWillBegin : AppKit.NSCollectionView * AppKit.NSDraggingSession * CoreGraphics.CGPoint * Foundation.NSSet -> unit
override this.DraggingSessionWillBegin : AppKit.NSCollectionView * AppKit.NSDraggingSession * CoreGraphics.CGPoint * Foundation.NSSet -> unit