/// <summary> 拖拽开始执行的事件
/// 做为数据发送者时触发 </summary>
/// <param name="context"></param>
protected override void OnDragBegin(DragContext context)
{
DragDropJudedArgs args = new DragDropJudedArgs()
{
DragContext = context
};
OnDragBeginJudgedHandle(args);
if (!args.Handle)
{
var selectviewdatas = new List <T>();
var selecttreeiters = this.GetAllSelectedTreeIters();
foreach (var item in selecttreeiters)
{
var isselectparent = selecttreeiters.FirstOrDefault(i => this.IsParent(item, i));
if (isselectparent.Equals(TreeIter.Zero))
{
selectviewdatas.Add(this.GetJisonsTreeIter(item).Data);
}
}
var dragData = new DragData()
{
SelectionDatas = selectviewdatas,
IsDo = false
};
context.SetDragData(dragData);
//Gtk.Drag.SetIconPixbuf(context, dragPixbuf, 0, 0);
base.OnDragBegin(context);
}
}
