private void pictureBoxMain_MouseUp(object sender, MouseEventArgs e)
{
if (radioButtonLink.Checked == true)
{
Node EndLink = MainGraph.Nodes.Find(x => (x.GetX() - TextPos <e.X && x.GetX() + TextPos> e.X) && (x.GetY() - TextPos <e.Y && x.GetY() + TextPos> e.Y));
if (EndLink != null)
{
EndLink.AddNewLink(TPositionNode);
}
else
{
DrawNodes();
}
}
TPositionNode = null;
}