判断字符串(是否数值型,脏话过滤,非法字符过滤)

/// <summary>
/// 判断给定的字符串(strNumber)是否是数值型
/// </summary>
/// <param name="strNumber">要确认的字符串</param>
/// <returns>是则返加true 不是则返回 false</returns>
public static bool IsNumber(string strNumber)
{
return new Regex(@"^([0-9])[0-9]*(/./w*)?$").IsMatch(strNumber);

}

/// <summary>
/// 脏话过滤
/// </summary>
/// <param name="inputString">要过滤的字符串</param>
/// <returns></returns>
public static string ReplaceString(string inputString)
{

string ReplaceString = "脏话|脏话|脏话|脏话|脏话|脏话|脏话|脏话|脏话|脏话|脏话|脏话|脏话|脏话|脏话|脏话|脏话|脏话|脏话|脏话|脏话|脏话|脏话|脏话|脏话|脏话|脏话|脏话|脏话|脏话|脏话|脏话|脏话|脏话|脏话|脏话|脏话|脏话|脏话|脏话|脏话|脏话|脏话|脏话";
string[] ArrReplaceString = ReplaceString.Split('|');
for (int i = 0; i < ArrReplaceString.Length; i++)
{
inputString = inputString.Replace(ArrReplaceString[i], "***");
}
return inputString;

}

/// <summary>
/// 过滤非法字符
/// </summary>
/// <param name="InputString">要输入的字符串</param>
/// <returns>true为合法的数据，false为非法的数据</returns>
public static bool FilterString(string InputString)
{

XmlDocument xmldoc = new XmlDocument();
xmldoc.Load(HttpContext.Current.Server.MapPath("~/CycbizManager/System/FilterWords.xml"));

XmlNodeList xNodeList = xmldoc.GetElementsByTagName("Info");

XmlNode xo = xNodeList[0];

//txtFilter.Text = xo.InnerText;

bool ReturnValue = true;
string ReplaceString = xo.InnerText;//"脏话|脏话|脏话|脏话|脏话|脏话|脏话|脏话|脏话|脏话|脏话|脏话|脏话|脏话|脏话|脏话|脏话|脏话|脏话|脏话|脏话|脏话|脏话|脏话|
脏话|脏话|脏话|脏话|脏话|脏话|脏话|脏话|脏话|脏话|脏话|脏话|脏话|脏话|脏话|脏话|脏话|脏话|脏话|脏话";
string[] ArrReplaceString = ReplaceString.Split('|');
for (int i = 0; i < ArrReplaceString.Length; i++)
{
if (ArrReplaceString[i] == "")
continue;
if (InputString.IndexOf(ArrReplaceString[i]) > -1)
{
ReturnValue = false;
break;
}

}
return ReturnValue;

}