从动态日期字段中删除月份和日期

Question

I am dynamically pulling in aa date field from my soql statement.

in my repeater i am getting the closeDate value.

my thought i would just pull the year in my set:

currently i am pulling data like: "2019-12-31" and i just want to display "2019"

private String closedateyear;
public String CloseDateYear 
{
    get { return closedateyear; }
    set
    {
        //pull year
    }
}

from what i read something like this may work:

string myDate = "05/11/2010"; 
DateTime date = Convert.ToDateTime(myDate);
int year = date.Year;

but when i implement it displays null

any help or guidance is appreciated

Answer 1

Conversion from string to date time works easier with DateTime.Parse or DateTime.ParseExact

So, you could try this:

string year = DateTime.Parse("2019-12-31").Year.ToString();

Answer 2

My issue was i was pulling null value for closedateyear on set. Once i set the value closedateyear = value; everything after worked:

private String closedateyear;
public String CloseDateYear
{
    get { return closedateyear; }
    set
    {
        closedateyear = value;
         //retrieving data "2019-12-31"
        DateTime date = Convert.ToDateTime(closedateyear);
         //convert closedateyear to date time: similar to: "12/31/2019 12:00:00 AM"
        int year = date.Year;
         //extracting year: "2019"
        closedateyear = year.ToString();
         //set closedateyear = year value "12/31/2019 12:00:00 AM"
    }
}