public async Task AddAsync(StorageFile file)
{
Guard.NotNull(file, nameof(file));
var model = allFiles.OfType <DocumentFileModel>().FirstOrDefault(x => string.Equals(x.Path, file.Path, StringComparison.OrdinalIgnoreCase));
if (model == null)
{
model = new DocumentFileModel(await DocumentFile.OpenAsync(file, false), dialogService);
allFiles.Insert(0, model);
}
await OpenAsync(model);
}
public Task <bool> OpenAsync(bool hideDialogs = false)
{
return(DoAsync("Opening", () => documentFile.OpenAsync(), hideDialogs));
}