替换非数字正则事件

替换非数字正则事件

  private void textBox1_KeyUp(object sender, KeyEventArgs e)
        {
            var textBox = (sender as TextBox);
            if (textBox == null) return;
            textBox.Text = Regex.Replace(textBox.Text,"[^\\d\\.]+","");
            textBox.SelectionStart = textBox.Text.Length;
        }