private void InitCollection()
{
try
{
if (this.CategoryViewModels == null)
{
this.CategoryViewModels = new ObservableCollection<CategoryViewModel>();
}
this.BuildCategoryList();
this.SelectedCategory = this.CategoryViewModels.First();
}
catch (Exception e)
{
this.Logger().ErrorFormat(e.Message);
}
}
private void BuildCategoryList(IEnumerable<Video> videos = null)
{
var selectedCategoryName = this.SelectedCategory == null ? String.Empty : this.SelectedCategory.Name;
this.CategoryViewModels.Clear();
var categoryViewModels = this._categoryService.GetCategories()
.Select(g => new CategoryViewModel
{
Count = g.Value,
Name = g.Key
});
this.CategoryViewModels.AddRange(categoryViewModels);
this.SelectedCategory = this.CategoryViewModels.SingleOrDefault(c => c.Name == selectedCategoryName) ??
this.CategoryViewModels.First();
}