private async void ConversionType_SelectedIndexChangedAsync(object sender, EventArgs e)
{
await _dataPopulator.EnsureDataPopulationAsync();
if (!_dataPopulator.IsPopulated())
{
MessageBox.Show("An error has occured!");
return;
}
ClearInput();
conversionDirection = ConversionType.SelectedIndex == 0 ? ConversionDirection.ToWindows : ConversionDirection.ToIana;
switch (conversionDirection)
{
case ConversionDirection.ToWindows:
_dataPopulator.DataEntries.OrderBy(x => x.IANATimeZoneID)
.ToList()
.ForEach(entry => comboBox2.Items.Add(entry.IANATimeZoneID));
break;
case ConversionDirection.ToIana:
var distinctEntries = _dataPopulator.DataEntries.Select(x => x.WinTimeZoneID)
.Distinct()
.OrderBy(x => x).ToList();
distinctEntries.ForEach(entry => comboBox2.Items.Add(entry));
break;
}
}
public async Task EnsureDataIsPopulatedAsync()
{
DataPopulator dataPopulator = new DataPopulator();
await dataPopulator.EnsureDataPopulationAsync();
Assert.True(dataPopulator.IsPopulated());
}