TextBox 数字，范围限制

        /// <summary>/// 文本框文本输入事件/// </summary>private void txt_PreviewTextInput(object sender, TextCompositionEventArgs e){Regex regex = new Regex("^[0-9]+$");e.Handled = !regex.IsMatch(e.Text);if (e.Handled)return;try{TextBox txtBox = sender as TextBox;string strTag = txtBox.Tag.ToString().Replace("Seconds", "").Replace("ms", "").Replace("s", "").Replace("d", "").Replace("%", "").Replace("(", "").Replace(")", "").Replace("（", "").Replace("）", "");string strText = txtBox.Text + e.Text;int max = 0;int min = 0;if (!string.IsNullOrWhiteSpace(strTag)){string[] strs = strTag.Split('-');max = min = int.Parse(strs[0]);foreach (string str in strs){int num = int.Parse(str);if (num < min)min = num;if (num > max)max = num;}}int number = int.Parse(strText);if (number >= min && number <= max)e.Handled = false;else{e.Handled = true;if (number < min)txtBox.Text = min.ToString();if (number > max)txtBox.Text = max.ToString();}}catch (Exception ex){e.Handled = true;}}/// <summary>/// 键盘按键事件/// 禁用粘贴/// </summary>private void txt_PreviewKeyDown(object sender, KeyEventArgs e){TextBox txtBox = sender as TextBox;if (txtBox.SelectionLength > 0)txtBox.Select(txtBox.Text.Length, 0);if ((e.KeyStates == Keyboard.GetKeyStates(Key.LeftCtrl) || e.KeyStates == Keyboard.GetKeyStates(Key.RightCtrl)) && e.KeyStates == Keyboard.GetKeyStates(Key.V))e.Handled = true;elsee.Handled = false;if (e.KeyStates == Keyboard.GetKeyStates(Key.Back)){try{string strTag = txtBox.Tag.ToString().Replace("Seconds", "").Replace("ms", "").Replace("s", "").Replace("d", "").Replace("%", "").Replace("(", "").Replace(")", "").Replace("（", "").Replace("）", "");string strText = txtBox.Text.Remove(txtBox.Text.Length - 1, 1);int max = 0;int min = 0;if (!string.IsNullOrWhiteSpace(strTag)){string[] strs = strTag.Split('-');max = min = int.Parse(strs[0]);foreach (string str in strs){int num = int.Parse(str);if (num < min)min = num;if (num > max)max = num;}}if (strText.Length == 0){txtBox.Text = min.ToString();e.Handled = true;return;}int number = int.Parse(strText);if (number >= min && number <= max)e.Handled = false;else{e.Handled = true;if (number < min)txtBox.Text = min.ToString();if (number > max)txtBox.Text = max.ToString();}}catch (Exception ex){e.Handled = false;}}}