public async Task LoadMoreAsync()
{
IsLoading = true;
var projectPreviews = await _projectsService.GetProjects(ProjectItems.Count, ProjectsPageSize);
var newProjects = projectPreviews.Where(preview => ProjectItems.All(item => item.ProjectId != preview.ProjectId));
var newItems = newProjects.Select(ToViewModel).ToArray();
foreach (var viewModel in newItems)
{
ProjectItems.Add(viewModel);
}
IsLoading = false;
}
