public object?Convert(object?[]?values, Type targetType, object?parameter, CultureInfo culture)
{
long ticks = long.MaxValue;
foreach (var value in values ?? Enumerable.Empty <object?>())
{
if (value is DateTime dt)
{
ticks = dt.Ticks;
}
else if (value is XmlLanguage language)
{
culture = language.GetSpecificCulture();
}
}
if (ticks == long.MaxValue)
{
return(null);
}
try
{
return(new DateTime(ticks).ToString(CalendarFormatInfo.FromCultureInfo(culture).YearMonthPattern, culture));
}
catch (ArgumentOutOfRangeException)
{
return(new DateTime(ticks).ToString("Y", CultureInfo.InvariantCulture));
}
}
public void TestFromCultureInfo(string cultureName, string yearMonth, string componentThree, string componentTwo, string componentOne)
{
var result = CalendarFormatInfo.FromCultureInfo(CultureInfo.GetCultureInfo(cultureName));
Assert.Equal(yearMonth, result.YearMonthPattern);
Assert.Equal(componentOne, result.ComponentOnePattern);
Assert.Equal(componentTwo, result.ComponentTwoPattern);
Assert.Equal(componentThree, result.ComponentThreePattern);
}
public void SettingYearPatternOfMultupleCultures()
{
string[] cultureNames = { "en-001", "en-150" };
CalendarFormatInfo.SetYearPattern(cultureNames, "B");
foreach (var cultureName in cultureNames)
{
var result = CalendarFormatInfo.FromCultureInfo(CultureInfo.GetCultureInfo(cultureName));
Assert.Equal("B", result.ComponentThreePattern);
}
}
public void SettingDayOfWeekStyleOfMultupleCultures()
{
string[] cultureNames = { "en-001", "en-150" };
CalendarFormatInfo.SetDayOfWeekStyle(cultureNames, new CalendarFormatInfo.DayOfWeekStyle("Z", "@", true));
foreach (var cultureName in cultureNames)
{
var result = CalendarFormatInfo.FromCultureInfo(CultureInfo.GetCultureInfo(cultureName));
Assert.Equal("d MMM", result.ComponentOnePattern);
Assert.Equal("Z@", result.ComponentTwoPattern);
}
}
public void ResettingDayOfWeekStyle()
{
const string cultureName = "en-001";
CalendarFormatInfo.SetDayOfWeekStyle(cultureName, new CalendarFormatInfo.DayOfWeekStyle("Z", "@", true));
CalendarFormatInfo.ResetDayOfWeekStyle(cultureName);
var result = CalendarFormatInfo.FromCultureInfo(CultureInfo.GetCultureInfo(cultureName));
Assert.Equal("d MMM", result.ComponentOnePattern);
Assert.Equal("ddd,", result.ComponentTwoPattern);
}
public void SettingYearPattern()
{
const string cultureName = "en-001";
CalendarFormatInfo.SetYearPattern(cultureName, "A");
var result = CalendarFormatInfo.FromCultureInfo(CultureInfo.GetCultureInfo(cultureName));
Assert.Equal("A", result.ComponentThreePattern);
CalendarFormatInfo.SetYearPattern(cultureName, null);
result = CalendarFormatInfo.FromCultureInfo(CultureInfo.GetCultureInfo(cultureName));
Assert.Equal("yyyy", result.ComponentThreePattern);
}
public object Convert(object[] values, Type targetType, object parameter, CultureInfo culture)
{
long ticks = long.MaxValue;
foreach (var value in values)
{
if (value is DateTime dt)
{
ticks = dt.Ticks;
}
else if (value is XmlLanguage language)
{
culture = language.GetSpecificCulture();
}
}
if (ticks == long.MaxValue)
{
return(null);
}
return(new DateTime(ticks).ToString(CalendarFormatInfo.FromCultureInfo(culture).YearMonthPattern, culture));
}