How To asp.net MVC Two dates between All Dates

Question

I have two date example 12.1.2019 12.2.2019

 public class DatelistController : Controller
{

    [HttpGet]

    public ActionResult Index()
    {

       DateTime start = new DateTime(2012, 2, 1);
        DateTime end = new DateTime(2012, 3, 1); ;
        var dates = new List<DateTime>();

        for (var dt = start; dt <= end; dt = dt.AddDays(1))
        {
            dates.Add(dt);
        }
        Enumerable.Range(0, 1 + end.Subtract(start).Days)
         .Select(offset => start.AddDays(offset))
        .ToArray();
        ViewData["AllDate"] = new SelectList(dates);
        return View();
    }

Index

> @foreach (var item in ViewData["AllDate"] as List<DateTime>)
{
    <tr> 
    <td style="font-family:Verdana; font-size:12px;">@item</td>
        </tr>
        }

I can't Index page there are no structures that I built.

What i want to do it;

Select Start Date and End Date is two date between get All Date's then later I will put the value on the days obtained using the check box

I would be happy if you help Thank you!

Hi I for my english sorry I have two date between get all date example; (22-02-2020)-(25.02.2020) output:(23.02-2020),(24.02-2020),(25.02-2020) — Avni Kasikci, Jul 05 '20 at 14:26

score 0 · Accepted Answer · edited Jul 05 '20 at 15:48

0

You are doing it wrong. Comparing two Day will give you the wrong value. For example, You are comparing 11 of 11 Jan and 11 February and it will give you 0, but it is not.

Do like this.

DateTime start;
DateTime end;
var dates = new List<DateTime>();

for (var dt = start; dt <= end; dt = dt.AddDays(1))
{
    dates.Add(dt);
}

You can also use LINQ as explained here.

Enumerable.Range(0, 1 + end.Subtract(start).Days)
          .Select(offset => start.AddDays(offset))
          .ToArray();

view error=System.NullReferenceException: (... as System.Collections.Generic.List<System.DateTime>) returned null. Thank you

edited Jul 05 '20 at 15:48

Avni Kasikci

5
5

answered Jul 05 '20 at 06:01

Vivek Nuna

25,472
25
109
197

I very thank you; how can i send view these values now, I cant return dates how do it? – Avni Kasikci Jul 05 '20 at 14:23
like this `foreach (var item in ViewData["Data"] as List) { @item } ` – Vivek Nuna Jul 05 '20 at 14:33
I cant sorry I error:System.NullReferenceException: 'Nesne başvurusu bir nesnenin örneğine ayarlanmadı.' (... as System.Collections.Generic.List) returned null. – Avni Kasikci Jul 05 '20 at 15:29
Are you setting value of ViewData? – Vivek Nuna Jul 05 '20 at 15:31
DateTime start = new DateTime(2012, 2, 1); DateTime end = new DateTime(2012, 3, 1); ; var dates = new List(); for (var dt = start; dt <= end; dt = dt.AddDays(1)) { dates.Add(dt); } Enumerable.Range(0, 1 + end.Subtract(start).Days) .Select(offset => start.AddDays(offset)) .ToArray(); ViewData["AllDate"] = new SelectList(dates); – Avni Kasikci Jul 05 '20 at 15:37
view code======>@foreach (var item in ViewData["Data"] as List) { @item } – Avni Kasikci Jul 05 '20 at 15:39
It should be ViewData["AllDate"] in the view. Because you are using it in controller. – Vivek Nuna Jul 05 '20 at 15:44
I very very Thank you If I puzzling sorry – Avni Kasikci Jul 05 '20 at 16:01

How To asp.net MVC Two dates between All Dates

1 Answers1