protected void OnDragEnter(UIDragEventArgs args)
{
Console.WriteLine($"Over {Data}");
args.DataTransfer.DropEffect = "move";
isUnderDragItem = true;
DragEnter?.Invoke(Data);
}
protected void OnDrop(UIDragEventArgs args)
{
Console.WriteLine($"Drop {Data}");
isBeingDragged = false;
isUnderDragItem = false;
DragEnter?.Invoke(Data);
}
void treeView_DragEnter(object sender, System.Windows.Forms.DragEventArgs e)
{
DragEnter?.Invoke(this, new Gui.Controls.DragEventArgs(
e.Data, e.KeyState, e.X, e.Y,
(Gui.Controls.DragDropEffects)e.AllowedEffect,
(Gui.Controls.DragDropEffects)e.Effect));
}
/// <inheritdoc/>
HRESULT IDropTarget.DragEnter(IDataObject pDataObj, MouseButtonState grfKeyState, POINT pt, ref DROPEFFECT pdwEffect)
{
System.Diagnostics.Debug.WriteLine($"IDropTarget.DragEnter: effect={pdwEffect}");
var drgevent = CreateDragEventArgs(pDataObj, grfKeyState, pt, pdwEffect);
DragEnter?.Invoke(this, drgevent);
lastEffect = pdwEffect = drgevent.Effect;
return(HRESULT.S_OK);
}
internal protected void RaiseDragEvent(string ev, DragEventArgs e)
{
switch (ev)
{
case "DragEnter":
DragEnter?.Invoke(this, e);
break;
case "DragOver":
DragOver?.Invoke(this, e);
break;
case "DragLeave":
DragLeave?.Invoke(this, e);
break;
case "Drop":
Drop?.Invoke(this, e);
break;
case "PreviewDragEnter":
PreviewDragEnter?.Invoke(this, e);
break;
case "PreviewDragOver":
PreviewDragOver?.Invoke(this, e);
break;
case "PreviewDragLeave":
PreviewDragLeave?.Invoke(this, e);
break;
case "PreviewDrop":
PreviewDrop?.Invoke(this, e);
break;
default:
break;
}
}
private void Target_DragEnter(object s, DragEventArgs e)
{
if (IsInitialized())
{
if (IsDragging)
{
e.Handled = true;
DropEventArgs ea = new DropEventArgs()
{
Package = e.Data.GetData(Name),
Source = currentSource
};
CanDrop.GetInvocationList().Where(d => d.Target == s).First().DynamicInvoke(ea);
if (ea.AllowDrop)
{
DragEnter.GetInvocationList().Where(d => d.Target == s).First().DynamicInvoke();
}
}
}
}
/// <summary>
/// Event handler for <see cref="DragEnter"/> event callback.
/// </summary>
/// <param name="eventArgs">Supplies information about an drag event that is being raised.</param>
/// <returns>A task that represents the asynchronous operation.</returns>
protected virtual Task OnDragEnterHandler(DragEventArgs eventArgs)
{
return(DragEnter.InvokeAsync(eventArgs));
}
private void Edit_DragEnter(object sender, DragEventArgs e)
{
DragEnter?.Invoke(sender, e);
}
public void OnDragEnter(DragEventArgs e) => DragEnter?.Invoke(e);
void treeView_DragEnter(object sender, DragEventArgs e)
{
DragEnter?.Invoke(this, e);
}
internal void HandleDragEnter(object sender, DragEventArgs e)
{
DragEnter?.Invoke(sender, e);
}
protected virtual void OnDragEnter(FilesDragEventArgs e)
{
DragEnter?.Invoke(this, e);
}
private void pbMyPictureBox_DragEnter(object sender, DragEventArgs e)
{
DragEnter?.Invoke(this, e);
}