For loop inside List<Object>{ };

Question

I have a DropDownList for year selection and I filled it with following default values.

Instead of which, is there any option to fill it using for-loop like I have given in below code as comment.

var yr = new List<Object>
{ 
    new { value=0 ,text="--Select--"},
    new { value = 2015 , text = "2015" },
    new { value = 2016 , text = "2016" },
    new { value = 2017 , text = "2017" },
    new { value = 2018 , text = "2018" },
    new { value = 2019 , text = "2019" },
    new { value = 2020 , text = "2020" },
    //new { for(int i = 2010;i <= DateTime.Now.Year+5; i++) value = i , text = i },
};
ViewBag.Year = new SelectList(yr, "value", "text");

Yes - that has an Add method as well. (List<Object> is a List<T>...) — RB.
– RB., Commented Mar 15, 2016 at 11:34
You can use the loop, but create a SelectListItem not object and just assign that to ViewBag.Year - there is no need to the SelectList constructor. And add the labelOption in the DropDownListFor() method, not in the controller. — user3559349
– user3559349, Commented Mar 15, 2016 at 11:38
And you can simplify it even further using the Enumerable.Range() method — user3559349
– user3559349, Commented Mar 15, 2016 at 11:41
ViewBag.Year = Enumerable.Range(2010, DateTime.Now.Year + 5 - 2010).Select(x => new SelectListItem { Value = x.ToString(), Text = x.ToString() }); — user3559349
– user3559349, Commented Mar 15, 2016 at 11:50

Salah Akbari · Accepted Answer · 2016-03-15 12:40:45Z

1

You could initialize your List with value 0 by using collection initializer and then use for loop like this:

var yr = new List<Object> {new {value = 0, text = "--Select--"}};
for (var i = 2015; i <= 2020; i++)
{
    yr.Add(new { value = i, text = i.ToString() });
}

edited Mar 15, 2016 at 12:40

answered Mar 15, 2016 at 11:37

Salah Akbari

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Comments

Shanid · Accepted Answer · 2016-03-15 11:36:25Z

0

Will this work for you ?

List<object> l = new List<object>();
for (int i = 2015; i < 2020; i++ )
    l.Add(new { value = i, text = i });

answered Mar 15, 2016 at 11:36

Shanid

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Jéf Bueno · Accepted Answer · 2016-06-10 20:01:53Z

0

Yes, you can use method Add of List.

i.e.

for (int i = 2015; i < DateTime.Now.Year+5; i++ )
{
    yr.Add(new { value = i, text = i });
}

edited Jun 10, 2016 at 20:01

answered Mar 15, 2016 at 11:37

Jéf Bueno

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