Visual Basic IsNumeric method for C#.

/// Check if obj is numeric
public static bool IsNumeric(object obj)
{
	double retNum;
	bool isNum = Double.TryParse(Convert.ToString(obj),
								 System.Globalization.NumberStyles.Any,
								 System.Globalization.NumberFormatInfo.InvariantInfo,
								 out retNum);
	return isNum;
}