Adding a range of values to an ObservableCollection efficiently

Question

I have an ObservableCollection of items that is bound to a list control in my view.

I have a situation where I need to add a chunk of values to the star

Answer 1

Example: Desired steps 0,10,20,30,40,50,60,70,80,90,100 --> min=0, max=100, steps=11

    static int min = 0;
    static int max = 100;
    static int steps = 11; 

    private ObservableCollection restartDelayTimeList = new ObservableCollection (
        Enumerable.Range(0, steps).Select(l1 => (min + (max - min) * ((double)l1 / (steps - 1))).ToString())
    );