ASP.NET Core - Operator '==' cannot be applied to operands of type 'DateTime?' and 'int' - asp.net-core

Question

In ASP.NET Core-5 Web API I have this code:
public class DashboardCountDto
{
public int? AllMandateCount { get; set; }
public int? CurrentYearMandateCount { get; set; }
}
public List<DashboardCountDto> GetDashboardFieldCount()
{
DashboardCountDto data = new DashboardCountDto();
DateTime current = DateTime.Now;
data.CurrentYearMandateCount = _context.zib_mandates.Where(m => m.CreatedDate == current.Year).Select(c => c.Id).Distinct().Count();
List<DashboardCountDto> dataCount = new List<DashboardCountDto>();
dataCount.Add(data);
return dataCount;
}
CreatedDate is DateTime datatype
This is to return the count of records for the current year.
I got this error:
Operator '==' cannot be applied to operands of type 'DateTime?' and 'int'
How do I get this corrected?
Thanks

Answer 1

In your line you write
data.CurrentYearMandateCount = _context.zib_mandates.Where(m => m.CreatedDate == current.Year).Select(c => c.Id).Distinct().Count();
But CreatedDate is Date Type and current.Year is int type. so If you compare with year you should write
data.CurrentYearMandateCount = _context.zib_mandates.Where(m => m.CreatedDate.Year == current.Year).Select(c => c.Id).Distinct().Count();
Hopefully it works

Answer 2

try it:
public List<DashboardCountDto> GetDashboardFieldCount()
{
DashboardCountDto data = new DashboardCountDto();
DateTime current = DateTime.Now;
DateTime currentYear= DateTime.Parse($"{current.Year}/01/01");
data.CurrentYearMandateCount = _context.zib_mandates.Where(m => m.CreatedDate >= currentYear).Select(c => c.Id).Distinct().Count();
List<DashboardCountDto> dataCount = new List<DashboardCountDto>();
dataCount.Add(data);
return dataCount;
}