void FlowObject_DragDrop(object sender, DragEventArgs e)
{
//so link it....
if (e.Effect == DragDropEffects.Link)
{
DragData dd = (DragData)e.Data.GetData(typeof(DragData));
string item = dd.Name;
int flowout = dd.Flowout;
FlowObject c = (FlowObject)this.Parent.Controls[this.Parent.Controls.IndexOfKey(item)];
if (dd.Flowout == 1)
{
c.FlowoutSide = this;
}
else
{
c.FlowOut = this;
}
this.Parent.Invalidate();
}
}