/// <function>NumUtil.AddComma</function>
/// <summary>add thousand comm to a number string</summary>
/// <param name="strNum"></param>
/// <returns></returns>
/// <remarks></remarks>
public static string AddComma(string strNum)
{
if (strNum == null || strNum.Length == 0)
{
return(strNum);
}
int intLength = 0;
string num = "";
string number = StrUtil.Trim(strNum);
int dotIdx = number.IndexOf(".");
if (dotIdx >= 0)
{
num = number.Substring(dotIdx);
number = number.Substring(0, dotIdx);
}
intLength = number.Length;
for (int i = 1; i <= intLength / 3; i++)
{
number = number.Insert(intLength - i * 3, ",");
}
if (number.Length > 1)
{
if (number.Substring(0, 1).Equals(","))
{
number = number.Substring(1);
}
}
return(number + num);
}
/// <summary>
/// 如果字符串不是数字，返回0
/// </summary>
/// <param name="o"></param>
/// <returns></returns>
public static long TryGetVal_Long(object o)
{
string str = o == null ? "" : StrUtil.Trim(o.ToString());
if (str.Length == 0)
{
return(0);
}
if (!IsDemical(str, NumberFormat_Comma))
{
return(0);
}
return(GetVal_Long(str));
}
/// <summary>
/// 如果字符串不是数字，返回0
/// </summary>
/// <param name="o"></param>
/// <returns></returns>
public static decimal TryGetVal(object o)
{
string str = o == null ? "" : StrUtil.Trim(o.ToString().Replace("(", "").Replace(")", ""));
if (str.Length == 0)
{
return(0);
}
if (!IsDemical(str, NumberFormat_Comma))
{
return(0);
}
return(GetVal(str));
}