private void DrawBtn_Click(object sender, EventArgs e)
{
Node root = PostfixTree.Parse(ExpTb.Text);
if (root != null)
{
root.Build(80, 0);
}
graphCanvas1.Root = root;
graphCanvas1.Invalidate();
}
private void ExpTb_TextChanged(object sender, EventArgs e)
{
Node root = PostfixTree.Parse(ExpTb.Text);
if (root != null)
{
root.Build(80, 0);
ExpTb.ForeColor = Color.Black;
}
else
{
ExpTb.ForeColor = Color.Red;
}
graphCanvas1.Root = root;
graphCanvas1.Invalidate();
}