public string FormatValue(string value, HistoryValueFormatterOptions options)
{
if (options is null)
{
throw new ArgumentNullException(nameof(options));
}
if (!decimal.TryParse(value, out var parsedValue))
{
// The value is no number so that formatting is not possible at all.
return(value);
}
if (options.Decimals.HasValue)
{
parsedValue = Math.Round(parsedValue, options.Decimals.Value);
}
if (!string.IsNullOrEmpty(options.Format))
{
return(parsedValue.ToString(options.Format, CultureInfo.InvariantCulture));
}
else
{
return(parsedValue.ToString(CultureInfo.InvariantCulture));
}
}
public HistoryValueFormatterOptions Create(IDictionary <string, object> componentSettings, IDictionary <string, object> defaultSettings)
{
var options = new HistoryValueFormatterOptions();
if (TryGetSetting(HistorySettingName.Decimals, componentSettings, defaultSettings, out var roundDigitsValue))
{
options.Decimals = Convert.ToInt32(roundDigitsValue, CultureInfo.InvariantCulture);
}
if (TryGetSetting(HistorySettingName.Format, componentSettings, defaultSettings, out var formatValue))
{
options.Format = Convert.ToString(formatValue);
}
return(options);
}