private DateTime?GetUtcDate(CustomDateField dateField)
{
DateTime?result = null;
TimeZoneItem tz = EventTimezone.Item;
DateTime eventDate = dateField.DateTime;
if (tz != null && eventDate != DateTime.MinValue)
{
// Ensure timezone is unspecified before converting to UTC
eventDate = DateTime.SpecifyKind(eventDate, DateTimeKind.Unspecified);
try
{
TimeZoneInfo eventTimezone = TimeZoneInfo.FindSystemTimeZoneById(tz.Timezone.Raw);
DateTime eventUtcDate = TimeZoneInfo.ConvertTimeToUtc(eventDate, eventTimezone);
result = eventUtcDate;
}
catch { }
}
return(result);
}
/// <summary>
/// Returns event start time in format 7:00pm EST
/// </summary>
/// <returns></returns>
public string GetFormattedEventStartTime()
{
DateTime eventDate = EventStartDate.DateTime;
if (eventDate != DateTime.MinValue)
{
TimeZoneItem timezone = EventTimezone.Item;
string zoneLabel = (timezone != null) ? timezone.Abbreviation.Rendered : string.Empty;
string meridian = eventDate.ToString("tt").ToLower();
return(String.Format("{0:h:mm}{1} {2}", eventDate, meridian, zoneLabel));
}
return(String.Empty);
}
/// <summary>
/// Loads cities from file
/// </summary>
private void LoadLocations()
{
lock (locker)
{
// Do not read cities again
if (allLocations.Count > 0)
{
return;
}
FileStream fileStream = null;
try
{
string stringPath = Path.Combine(Path.GetDirectoryName(Assembly.GetExecutingAssembly().Location), "Data", "Cities.dat");
fileStream = File.OpenRead(stringPath);
using (var fileReader = new StreamReader(fileStream, Encoding.UTF8))
{
string line = null;
while ((line = fileReader.ReadLine()) != null)
{
try
{
string[] chunks = line.Split('\t');
float latitude = float.Parse(chunks[4], CultureInfo.InvariantCulture);
float longitude = float.Parse(chunks[5], CultureInfo.InvariantCulture);
float elevation = float.Parse(string.IsNullOrWhiteSpace(chunks[15]) ? "0" : chunks[15], CultureInfo.InvariantCulture);
TimeZoneItem timeZone = timeZones.FirstOrDefault(tz => tz.TimeZoneId.Equals(chunks[17], StringComparison.InvariantCultureIgnoreCase));
var names = new List <string>();
names.Add(chunks[1]);
names.AddRange(chunks[3].Split(','));
allLocations.Add(new GeoLocation()
{
Names = names.ToArray(),
Country = chunks[8],
Elevation = elevation,
Latitude = latitude,
Longitude = -longitude,
TimeZone = timeZone,
});
}
catch (Exception ex)
{
Log.Error($"Unable to parse geographical location, line = {line}, error: {ex}");
}
}
}
fileStream.Close();
}
catch (Exception ex)
{
Log.Error($"Unable to load locations list, error: {ex}");
}
finally
{
if (fileStream != null)
{
fileStream.Close();
}
}
}
LocationsLoaded?.Invoke();
}
public TimeZoneEditViewModel()
{
TimeZone = new TimeZoneItem();
}
