TextBox的滚动条自动到最底部、利用枚举获取HashTable中的值

滚动条置底
            IDictionaryEnumerator myEnumerator = htErrorInfo.GetEnumerator();
            while(myEnumerator.MoveNext())
            {
                txtMessage.Text += myEnumerator.Value.ToString() + "\r\n";
            }
//将滚动条置底
            txtMessage.Focus();
            txtMessage.Select(txtMessage.TextLength,0);
            txtMessage.ScrollToCaret();