/// <summary>Parses the date value using the given date formats.</summary>
/// <remarks>Parses the date value using the given date formats.</remarks>
/// <param name="dateValue">the date value to parse</param>
/// <param name="dateFormats">the date formats to use</param>
/// <param name="startDate">
/// During parsing, two digit years will be placed in the range
/// <code>startDate</code> to <code>startDate + 100 years</code>. This value may
/// be <code>null</code>. When <code>null</code> is given as a parameter, year
/// <code>2000</code> will be used.
/// </param>
/// <returns>the parsed date or null if input could not be parsed</returns>
public static DateTime ParseDate(string dateValue, string[] dateFormats, DateTime
startDate)
{
Args.NotNull(dateValue, "Date value");
string[] localDateFormats = dateFormats != null ? dateFormats : DefaultPatterns;
DateTime localStartDate = startDate != null ? startDate : DefaultTwoDigitYearStart;
string v = dateValue;
// trim single quotes around date if present
// see issue #5279
if (v.Length > 1 && v.StartsWith("'") && v.EndsWith("'"))
{
v = Sharpen.Runtime.Substring(v, 1, v.Length - 1);
}
foreach (string dateFormat in localDateFormats)
{
SimpleDateFormat dateParser = DateUtils.DateFormatHolder.FormatFor(dateFormat);
dateParser.Set2DigitYearStart(localStartDate);
ParsePosition pos = new ParsePosition(0);
DateTime result = dateParser.Parse(v, pos);
if (pos.GetIndex() != 0)
{
return(result);
}
}
return(null);
}