/// <summary>
/// Deletes a remfile and associated viewmodel.
/// </summary>
/// <param name="remFileViewModel">The associated viewmodel to the remFile model</param>
/// <returns>Task completed</returns>
private async Task DeleteRemFile(RemFileViewModel remFileViewModel)
{
RemFiles.Remove(remFileViewModel);
var remFile = await _remFileStore.GetRemFile(remFileViewModel.Id);
await _remFileStore.DeleteRemFile(remFile);
}
/// <summary>
/// Creates new empty remFile with viewmodel, navigates to DetailPage.
/// </summary>
/// <returns>Task completed</returns>
private async Task AddRemFile()
{
var viewModel = new RemFileDetailPageViewModel(new RemFileViewModel(), _remFileStore, _pageService);
viewModel.RemFileAdded += (source, remFile) => {
RemFiles.Add(new RemFileViewModel(remFile));
};
await this._pageService.PushAsync(new RemFileDetailPage(viewModel));
SelectedRemFile = null;
}
/// <summary>
/// Loads remFiles from Database, creates viewmodels and fills remFiles observable collection.
/// </summary>
/// <returns>Task completed</returns>
private async Task LoadData()
{
if (_isDataLoaded)
{
return;
}
_isDataLoaded = true;
var remfiles = await _remFileStore.GetRemFilesAsync();
foreach (var r in remfiles)
{
RemFiles.Add(new RemFileViewModel(r));
}
}
/// <summary>
/// Search command used when textChanged in SearchBar or when user pushes SearchButton.
/// Creates a copy of all remFiles which is restored when the search is empty or cancelled.
/// </summary>
/// <param name="text">Text to search for in title (contains)</param>
private void Search(string text)
{
IEnumerable <RemFileViewModel> searchedRemFiles = null;
if (!_isSearchActive)
{
_remFiles = new List <RemFileViewModel>(RemFiles);
}
if (String.IsNullOrWhiteSpace(text))
{
searchedRemFiles = _remFiles;
_isSearchActive = false;
}
else
{
searchedRemFiles = _remFiles.Where(r => (r.Title.ToLower() + r.Description.ToLower()).Contains(text.ToLower()));
_isSearchActive = true;
}
RemFiles.Clear();
foreach (var r in searchedRemFiles)
{
RemFiles.Add(r);
}
}
