我從 soql 語句中動態(tài)提取日期字段。在我的中繼器中，我得到了 closeDate 值。我想我會把年份拉到我的集合中：目前我正在提取數(shù)據(jù)，例如：“2019-12-31”，我只想顯示“2019”private String closedateyear;public String CloseDateYear { get { return closedateyear; } set { //pull year }}從我讀到的內(nèi)容來看，這樣的內(nèi)容可能有效：string myDate = "05/11/2010"; DateTime date = Convert.ToDateTime(myDate);int year = date.Year;但是當(dāng)我實(shí)現(xiàn)它時(shí)它顯示 null感謝任何幫助或指導(dǎo)
2 回答
泛舟湖上清波郎朗
TA貢獻(xiàn)1818條經(jīng)驗(yàn) 獲得超3個(gè)贊
使用DateTime.Parse或DateTime.ParseExact從字符串到日期時(shí)間的轉(zhuǎn)換更容易
所以，你可以試試這個(gè)：
string?year?=?DateTime.Parse("2019-12-31").Year.ToString();
嚕嚕噠
TA貢獻(xiàn)1784條經(jīng)驗(yàn) 獲得超7個(gè)贊
我的問題是我在設(shè)置中拉取了 closeateyear 的空值。一旦我設(shè)置值 closedateyear = value; 工作后的一切：
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"
}
}
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