azure-search-blog-post-6.cs

private static void SelectFields(SearchOptions options, PackageSearchQuery query)
{
    SelectDefaultFields(options);

    if (!query.Fields.Any())
    {            
        return;
    }

    foreach (var field in query.Fields)
    {
        var fieldName = field.CamelCaseToPascalCase();
        PropertyInfo? property = typeof(PackageModel).GetProperty(fieldName);
        if (property == null)
        {
            continue;
        }

        if (options.Select.Contains(fieldName))
        {
            continue;
        }

        options.Select.Add(fieldName);
    }
}

private static bool IsFieldRequested(string field, IList<string> fields, [NotNullWhen(true)] out string? requestedField)
{
    requestedField = fields.FirstOrDefault(x => string.Equals(field, x, StringComparison.OrdinalIgnoreCase));
    return requestedField != null;
}

private static void SelectDefaultFields(SearchOptions options)
{
    options.Select.Add(nameof(PackageModel.Id));
    options.Select.Add(nameof(PackageModel.PackageId));
    options.Select.Add(nameof(PackageModel.Title));
    options.Select.Add(nameof(PackageModel.LatestVersionNumber));
}