C# IsNumeric 來自官方的版本?

// 資料來源：http://support.microsoft.com/kb/329488/zh-tw
static bool IsNumeric(object Expression) {
	bool isNum;
	double retNum;

	isNum = Double.TryParse(Convert.ToString(Expression), System.Globalization.NumberStyles.Any, System.Globalization.NumberFormatInfo.InvariantInfo, out retNum);

	return isNum;
}