Code-Validator：验证经度、验证维度

using System;

namespace Sp.Common
{
    public class ValidatorHelper
    {
        /// <summary>  
        /// 验证经度  
        /// </summary>  
        /// <param name="input">待验证的字符串</param>  
        /// <returns>是否匹配</returns>  
        public static bool IsLongitude(string input)
        {
            ////范围为-180～180，小数位数必须是1到5位  
            //string pattern = @"^[-\+]?((1[0-7]\d{1}|0?\d{1,2})\.\d{1,5}|180\.0{1,5})$";  
            //return IsMatch(input, pattern);  
            float lon;
            if (float.TryParse(input, out lon) && lon >= -180 && lon <= 180)
                return true;
            else
                return false;
        }

        /// <summary>  
        /// 验证纬度  
        /// </summary>  
        /// <param name="input">待验证的字符串</param>  
        /// <returns>是否匹配</returns>  
        public static bool IsLatitude(string input)
        {
            ////范围为-90～90，小数位数必须是1到5位  
            //string pattern = @"^[-\+]?([0-8]?\d{1}\.\d{1,5}|90\.0{1,5})$";  
            //return IsMatch(input, pattern);  
            float lat;
            if (float.TryParse(input, out lat) && lat >= -90 && lat <= 90)
                return true;
            else
                return false;
        }

    }
}