一個C#驗證類

前幾天在項目中碰到的驗證問題，由於不適合用驗證控制項，所以只好自己寫了一個驗證方法，貼上來。。。

 

using System;
using System.Data;
using System.Configuration;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
//zoser

namespace MDA
{
    /// <summary>
    /// DataCheckRule 的摘要說明
    ///
    /// 資料檢查規則
    /// </summary>
    public class DataCheckRule
    {
        public DataCheckRule()
        {
            //
            // TODO: 在此處添加建構函式邏輯
            //
        }        
        #region        /// 新的資料插入到資料庫中時，資料項目的空檢查
        ///
        /// <summary>
        /// string
        /// </summary>
        public string StrInserteCheck(string str)
        {
            if (str == "")
            {
                return "@@";
            }
            else
            {
                return str;
            }
        }
        /// <summary>
        /// datatime
        /// </summary>
        /// <param name="dt"></param>
        /// <returns></returns>
        public DateTime DTInserteCheck(string str)
        {
            System.Text.RegularExpressions.Regex reg1=new System.Text.RegularExpressions.Regex(@"^((\d{2}(([02468][048])|([13579][26]))[\-\/\s]?((((0?[13578])|(1[02]))[\-\/\s]?((0?[1-9])|([1-2][0-9])|(3[01])))|(((0?[469])|(11))[\-\/\s]?((0?[1-9])|([1-2][0-9])|(30)))|(0?2[\-\/\s]?((0?[1-9])|([1-2][0-9])))))|(\d{2}(([02468][1235679])|([13579][01345789]))[\-\/\s]?((((0?[13578])|(1[02]))[\-\/\s]?((0?[1-9])|([1-2][0-9])|(3[01])))|(((0?[469])|(11))[\-\/\s]?((0?[1-9])|([1-2][0-9])|(30)))|(0?2[\-\/\s]?((0?[1-9])|(1[0-9])|(2[0-8]))))))(\s(((0?[1-9])|(1[0-2]))\:([0-5][0-9])((\s)|(\:([0-5][0-9])\s))([AM|PM|am|pm]{2,2})))?$");
            if (reg1.IsMatch(str))
            {
                return Convert.ToDateTime(str);
            }
            else
            {
                return Convert.ToDateTime("1900-01-01");
            }
        }
        /// <summary>
        /// int
        /// </summary>
        /// <param name="i"></param>
        /// <returns></returns>
        public int IntInserteCheck(string str)
        {
            System.Text.RegularExpressions.Regex reg1 = new System.Text.RegularExpressions.Regex(@"^[-]?\d+[.]?\d*$");  
            if (reg1.IsMatch(str))
            {
                return Convert.ToInt32(str);
            }
            else
            {
                return 9999;
            }
        } 

        /// <summary>
        /// float
        /// </summary>
        /// <param name="f"></param>
        /// <returns></returns>
        public float FloatInserteCheck(string str)
        {
            System.Text.RegularExpressions.Regex reg1 = new System.Text.RegularExpressions.Regex(@"^-?([1-9]\d*\.\d*|0\.\d*[1-9]\d*|0?\.0+|0)$");
           
            if (reg1.IsMatch(str))
            {
                return Convert.ToSingle(str);
            }
            else
            {
                return 9999.9999F;
            }
        }
        #endregion
    }

}