/*****************************************************
* 文件名：StringValidation.cs
* 功能描述：扩展方法：字符串验证
* 创建时间：2014-6-7
* 作 者： Eric
*
* 修改时间：
* 修改人：
* 修改描述
*
******************************************************/
public static class StringValidation
{
/// <summary>
/// 验证IP地址
/// </summary>
/// <param name="str"></param>
/// <returns></returns>
public static bool IsIP(this string str)
{
return string.IsNullOrEmpty(str)
&& Regex.IsMatch(str, @"^(25[0-5]|2[0-4][0-9]|[0-1]{1}[0-9]{2}|[1-9]{1}[0-9]{1}|[1-9])\.(25[0-5]|2[0-4][0-9]|[0-1]{1}[0-9]{2}|[1-9]{1}[0-9]{1}|[1-9]|0)\.(25[0-5]|2[0-4][0-9]|[0-1]{1}[0-9]{2}|[1-9]{1}[0-9]{1}|[1-9]|0)\.(25[0-5]|2[0-4][0-9]|[0-1]{1}[0-9]{2}|[1-9]{1}[0-9]{1}|[0-9])$", RegexOptions.IgnoreCase);
}/// <summary>
/// 验证电话号 如:010-29292929
/// </summary>
/// <param name="str"></param>
/// <returns></returns>
public static bool IsTelephone(this string str)
{
return string.IsNullOrEmpty(str) && Regex.IsMatch(str, @"^\d{3,4}-?\d{6,8}$", RegexOptions.IgnoreCase);
}/// <summary>
/// 验证手机号
/// </summary>
/// <param name="str"></param>
/// <returns></returns>
public static bool IsMobilePhone(this string str)
{
return string.IsNullOrEmpty(str) && Regex.IsMatch(str, @"^1[35]\d{9}$", RegexOptions.IgnoreCase);
}
/// <summary>
/// 验证邮箱地址
/// </summary>
/// <param name="str"></param>
/// <returns></returns>
public static bool IsEmail(this string str)
{
return string.IsNullOrEmpty(str) && Regex.IsMatch(str, @"^[A-Za-z0-9](([_\.\-]?[a-zA-Z0-9]+)*)@([A-Za-z0-9]+)(([\.\-]?[a-zA-Z0-9]+)*)\.([A-Za-z]{2,})$", RegexOptions.IgnoreCase); ;
}/// <summary>
/// 验证日期数据
/// </summary>
/// <param name="str"></param>
/// <returns></returns>
public static bool IsDate(this string str)
{
try
{
DateTime time = Convert.ToDateTime(str);
return true;
}
catch
{
return false;
}
}/// <summary>
/// 验证是否是中文
/// </summary>
/// <param name="str"></param>
/// <returns></returns>
public static bool IsChinese(this string str)
{
return string.IsNullOrEmpty(str) && Regex.IsMatch(str, @"^[\u4e00-\u9fa5]+$", RegexOptions.IgnoreCase);
}/// <summary>
/// 验证URL
/// </summary>
/// <param name="str"></param>
/// <returns></returns>
public static bool IsUrl(this string str)
{
return string.IsNullOrEmpty(str) && Regex.IsMatch(str, @"^(((file|gopher|news|nntp|telnet|http|ftp|https|ftps|sftp)://)|(www\.))+(([a-zA-Z0-9\._-]+\.[a-zA-Z]{2,6})|([0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}))(/[a-zA-Z0-9\&%_\./-~-]*)?$", RegexOptions.IgnoreCase);
}/// <summary>
/// 验证邮编
/// </summary>
/// <param name="str"></param>
/// <returns></returns>
public static bool IsZipCode(this string str)
{
return string.IsNullOrEmpty(str) && Regex.IsMatch(str, @"^\d{6}$", RegexOptions.IgnoreCase);
}/// <summary>
/// 验证QQ
/// </summary>
/// <param name="str"></param>
/// <returns></returns>
public static bool IsQQ(this string str)
{
return string.IsNullOrEmpty(str) && Regex.IsMatch(str, "^[1-9]\\d{4,9}$");
}/// <summary>
/// 验证纯字符
/// </summary>
/// <param name="str"></param>
/// <returns></returns>
public static bool IsLetter(this string str)
{
return string.IsNullOrEmpty(str) && Regex.IsMatch(str, "^[a-zA-Z]+$");
}/// <summary>
/// 验证字符串长度
/// </summary>
/// <param name="str"></param>
/// <param name="begin"></param>
/// <param name="end"></param>
/// <returns></returns>
public static bool IsLength(string str, int begin, int end)
{
int length = Regex.Replace(str, @"[^\x00-\xff]", "OK").Length;
if ((length <= begin) && (length >= end))
{
return false;
}
return true;
}//// <summary>
/// 是不是Int型的
/// </summary>
/// <param name="source"></param>
/// <returns></returns>
public static bool IsInt(string str)
{
Regex regex = new Regex(@"^(-){0,1}\d+$");
if (regex.Match(str).Success)
{
if ((long.Parse(str) > 0x7fffffffL) || (long.Parse(str) < -2147483648L))
{
return false;
}
return true;
}
return false;
}
}