Is it Possible to Get Multiple Data Type using a Single Query in Entity Framework?

Question

I have a ViewModel looks like this :

public int AllRecords { get; set; }
public int IsActiveRecords { get; set; }
public int IsDeletedRecords { get; set; }
public List<Setup_Country> Countries { get; set; }

Is it possible to write a single query using Entity Framework to get these data from database ?

If not , then what is the best way to do this ?

Answer 1

What is the multiplicity you want here? you can fill this ViewModel in like this:

model = new MyViewModel();
model.Countries = db.SetupCountry.ToList();
model.AllRecords  = model.Countries.Count();
model.IsActiveRecords = model.Countries.Count(c => c.IsActive);
model.IsDeletedRecords = model.Countries.Count(c => c.IsDeleted);

As Stephen Muecke Has noted in the comments, this will query the db only once.

Or, if you want a one-liner,

model = new MyViewModel{
    Countries = db.SetupCountry.ToList(),
    AllRecords = db.SetupCountry.Count(),
    IsActiveRecords = db.SetupCountry.Count(c => c.IsActive),
    IsDeletedRecords = db.SetupCountry.Count(c => c.IsDeleted),
}