Question

I am working with WPF application and I want to assign a value of the var query to the ObservableCollection. So how can I assign it?

userDetail = Query as ObservableCollection<UserDatail>;

This will give me null.

My code is here

        userDetail = new ObservableCollection<UserDatail>();
        SampleDB conn = new SampleDB(Helper.GetPath());
        var Query = from a in conn.UserInfo
        select      
          a;

        userDetail = Query as ObservableCollection<UserDatail>;

See I don’t want to use foreach loop to add this one by one.

Thanks…!!!

Answer 1

I think you want a collection of UserDatail and not UserInfo. If yes try this:

    SampleDB conn = new SampleDB(Helper.GetPath());
    var Query = from a in conn.UserInfo
    select      
      a.UserDatail; //I assume each user info object has a UserDatail property

    var userDetail = new ObservableCollection<UserDatail>(Query.ToList());