JBLEAR-STD/Stone.WinForm/Stone.Common/MyValidator.cs

using System;
using System.Collections.Generic;
using System.Text;
using System.Windows.Forms;
using System.Text.RegularExpressions;

namespace Stone.Common
{
    public class MyErrorProvider
    {
        private static ErrorProvider errorProvider = new ErrorProvider();
        static MyErrorProvider()
        {
            errorProvider.BlinkStyle = ErrorBlinkStyle.AlwaysBlink;
        }

        public static void SetError(Control control, string error)
        {
            errorProvider.SetError(control, error);
            control.Focus();
        }

        public static void ClearError(Control control)
        {
            errorProvider.SetError(control, "");
        }
    }

    public class MyValidator
    {
        /// <summary>
        /// 判断输入是否为空!
        /// </summary>
        /// <param name="control"></param>
        /// <param name="error"></param>
        /// <returns></returns>
        public static bool IsEmpty(Control control, string error)
        {
            if (control.Text.Trim() == string.Empty)
            {
                MyErrorProvider.SetError(control, error + " 不能为空!");
                return false;
            }
            MyErrorProvider.ClearError(control);
            return true;
        }

        /// <summary>
        /// 判断输入是否是数值
        /// </summary>
        /// <param name="control"></param>
        /// <param name="error"></param>
        /// <returns></returns>
        public static bool IsNumeric(Control control, string error)
        {
            bool result;
            Regex regex = new Regex("^[0-9]*[0-9][0-9]*$");
            result = regex.IsMatch(control.Text.Trim());

            if (!result)
            {
                MyErrorProvider.SetError(control, error + " 只能是数字!");
                return result;
            }
            MyErrorProvider.ClearError(control);
            return result;
        }

        /// <summary>
        /// 判断输入是否为Money
        /// </summary>
        /// <param name="control"></param>
        /// <param name="error"></param>
        /// <returns></returns>
        public static bool IsMoney(Control control, string error)
        {
            bool result;
            result = false;
            try
            {
                double t = Convert.ToDouble(control.Text.Trim());
                if (t < 0)
                {
                    result = false;
                }else
                {
                    result = true;
                }
            }
            catch { }

            if (!result)
            {
                MyErrorProvider.SetError(control, error + " 不是正确的金额!");
                return result;
            }
            MyErrorProvider.ClearError(control);
            return result;
        }


    }
}