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Question : linq query handling null datetime
I have a dataset with two tables. I have a linq query that is joining the tables and returning data as expected unless EndDate is null. If the date field is null I get an error
"Cannot cast DBNull.Value to type 'System.DateTime'. Please use a nullable type."
I need all rows even if EndDate is null. What is the best way to handle the null issue and get all rows of data?
var query = from xxxxx
where xxxxx
select new ReturnResult
{
LastName = person.Field
("Last
Name"),
FirstName = person.Field
("Firs
tName"),
StartDate = person.Field
("St
artDate"),
EndDate = person.Field
("En
dDate")
}
ReturnResult is a class I defined.
public class PersonnelResult
{
public String LastName
{get; set;}
public String FirstName
{get; set;}
public DateTime StartDate
{get; set;}
public DateTime EndDate
{get; set;}
}
Answer : linq query handling null datetime
make your date time variables
DateTime? yourDate; (this is a nullabe datetime object)
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