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C1.WPF Namespace / C1DragHelper Class / DragStarting Event



In This Topic
    DragStarting Event
    In This Topic
    Occurs when a drag gesture is about to start.
    Syntax
    'Declaration
 

    Public Event DragStarting As EventHandler(Of C1DragStartingEventArgs)
    'Usage
 

    Dim instance As C1DragHelper
Dim handler As EventHandler(Of C1DragStartingEventArgs)
 
AddHandler instance.DragStarting, handler
    public event EventHandler<C1DragStartingEventArgs> DragStarting
    public:
event EventHandler<C1DragStartingEventArgs^>^ DragStarting
    Event Data

    The event handler receives an argument of type C1DragStartingEventArgs containing data related to this event. The following C1DragStartingEventArgs properties provide information specific to this event.

    PropertyDescription
    CancelGets or sets a value indicating whether the recognizion of this gesture is canceled.  
    CaptureElementOnPointerPressedGets or sets a value indicating whether the element will be captured in pointer pressed event (MouseLeftButtonDown in SL and WPF and PointerPressed in WinRT) or in the first pointer move event (MouseMove in SL and WPF and PointerMoved in WinRT).Capturing the element on mouse down will cause Click, DoubleClick and MouseLeftButtonUp events not to be fired in sub-elements (nested elements in the visual tree), whereas capturing the element on the first mouse move can make it difficult for final users to drag small elements quickly.  
    DragHelperGets a reference to the C1DragHelper that originated the event. (Inherited from C1.WPF.C1DragEventArgs)
    HandledGets or sets a value that marks the routed event as handled. Setting to true prevents most handlers along the event route from handling the same event again. (Inherited from C1.WPF.C1InputEventArgs)
    InitialThresholdGets or sets the number of pixels the gesture will have to pass in order to start.  
    ModeGets or sets the mode indicating the sort of drag to be listened.  
    OriginalEventArgsGets the arguments of the original event which raised this event. (Inherited from C1.WPF.C1InputEventArgs)
    OriginalSourceGets a reference to the object that raised the event. (Inherited from C1.WPF.C1InputEventArgs)
    PointerDeviceTypeGets the type of pointer which performed the action. (Inherited from C1.WPF.C1InputEventArgs)
    See Also

    Reference

    C1DragHelper Class
    C1DragHelper Members