/// <summary>
/// Searches for geographical locations synchronously.
/// </summary>
/// <param name="searchString">String to search</param>
/// <returns>List of location items matching the specified search string</returns>
private List <LocationSearchItem> Search(string searchString)
{
List <LocationSearchItem> results = new List <LocationSearchItem>();
if (searchString.Length == 0)
{
return(results);
}
var stringPath = Path.Combine(Path.GetDirectoryName(Assembly.GetExecutingAssembly().Location), "Data", "Cities.dat");
FileStream _FileStream = File.OpenRead(stringPath);
using (var fileReader = new StreamReader(_FileStream, Encoding.UTF8))
{
_LastSearchString = searchString;
string line = null;
try
{
while ((line = fileReader.ReadLine()) != null && searchString.Equals(_LastSearchString))
{
string[] chunks = line.Split('\t');
var names = new List <string>();
names.Add(chunks[1]);
names.AddRange(chunks[3].Split(','));
var name = names.FirstOrDefault(s => s.Replace("\'", "").StartsWith(searchString, StringComparison.InvariantCultureIgnoreCase));
if (name != null)
{
double latitude = double.Parse(chunks[4], CultureInfo.InvariantCulture);
double longitude = double.Parse(chunks[5], CultureInfo.InvariantCulture);
double elevation = double.Parse(string.IsNullOrWhiteSpace(chunks[15]) ? "0" : chunks[15], CultureInfo.InvariantCulture);
TimeZoneItem timeZone = TimeZones.FirstOrDefault(tz => tz.TimeZoneId.Equals(chunks[17], StringComparison.InvariantCultureIgnoreCase));
results.Add(new LocationSearchItem
{
Name = name,
Country = chunks[8],
Names = string.Join(", ", names.Distinct().Except(new[] { name }).ToArray()),
Location = new CrdsGeographical(-longitude, latitude, timeZone.UtcOffset, elevation, timeZone.TimeZoneId, name)
});
if (results.Count == 10)
{
break;
}
}
}
}
catch (Exception ex)
{
}
return(results.OrderBy(r => r.Name).ToList());
}
}
/// <summary>
/// Retrieves the <see cref="TimeZone" /> object for the specified
/// <see>
/// <cref>TZID</cref>
/// </see>
/// (Time Zone Identifier).
/// </summary>
/// <param name="tzid">
/// A valid
/// <see>
/// <cref>TZID</cref>
/// </see>
/// object, or a valid
/// <see>
/// <cref>TZID</cref>
/// </see>
/// string.
/// </param>
/// <returns>
/// A <see cref="TimeZone" /> object for the
/// <see>
/// <cref>TZID</cref>
/// </see>
/// .
/// </returns>
public ITimeZone GetTimeZone(string tzid)
{
return(TimeZones.FirstOrDefault(tz => Equals(tz.TzId, tzid)));
}
/// <summary>
/// Retrieves the <see cref="ITimeZone" /> object for the specified
/// <see cref="TZID"/> (Time Zone Identifier).
/// </summary>
/// <param name="tzid">A valid <see cref="TZID"/> object, or a valid <see cref="TZID"/> string.</param>
/// <returns>A <see cref="TimeZone"/> object for the <see cref="TZID"/>.</returns>
public ITimeZone GetTimeZone(string tzid)
{
return(TimeZones.FirstOrDefault(tz => object.Equals(tz.TZID, tzid)));
}