Question

Let’s consider that I have two date fields.

DateTime dt1 = "01/04/2012"
DateTime dt2 = "31/08/2012"

Here my dates are in “DD/MM/YYYY” format. Here dt1 is the start date and dt2 is the end date. As from the two date fields, I can be able to know that it lies in 04,05,06,07,08 months.

So I want to show on my dropdown list items as combination of month and year.

04/2012
05/2012
06/2012
07/2012
08/2012

How can I achieve this?

Answer 1

Something like below will give you a list of string, that you can use to bind to the drop down.

 DateTime dt1 = DateTime.ParseExact("01/04/2012", "d/M/yyyy", CultureInfo.InvariantCulture);
 DateTime dt2 = DateTime.ParseExact("31/08/2012", "d/M/yyyy", CultureInfo.InvariantCulture);
List<string> list = new List<string>();
while (dt2 > dt1)
     {
      list.Add(dt1.Month + "/" + dt1.Year);
      dt1 = dt1.AddMonths(1);
      }

If you output it using foreach you will get:

    foreach (string str in list)
    {
        Console.WriteLine(str);
    }


4/2012
5/2012
6/2012
7/2012
8/2012

Later if its ASP.Net (because you used dropdownlist), you can do

    DropDownList1.DataSource = list;
    DropDownList1.DataBind();