使用 Entity Framework 将日期作为字符串传递给 Crystal 报告
Pass date as String to Crystal Report Using Entity Framework
当 DateOfBirth 为 Null 时,我想将类似“-”的字符串传递给 Crystal 报告,但出现此错误:
System.FormatException: 'String was not recognized as a valid DateTime.'
使用此代码时:
.Select(u => new
{
u.EmployeeCode,
u.EmployeeName,
JopName = string.IsNullOrEmpty(u.JopName) ? "-" : u.JopName,
Date_Hiring = u.Date_Hiring.GetValueOrDefault(),
AdministrationName = string.IsNullOrEmpty(u.AdministrationName) ? "-" : u.AdministrationName,
DepartmentName = string.IsNullOrEmpty(u.DepartmentName) ? "-" : u.DepartmentName,
PranchName = string.IsNullOrEmpty(u.PranchName) ? "-" : u.PranchName,
DateOfBirth =Convert.ToString(u.DateOfBirth) == string.Empty ? DateTime.Parse("-") : u.DateOfBirth
})
.ToList();
这是我的 Class :
public partial class SR1_Result
{
public int EmployeeCode { get; set; }
public string EmployeeName { get; set; }
public string JopName { get; set; }
public Nullable<System.DateTime> Date_Hiring { get; set; }
public Nullable<double> Nat_Salary { get; set; }
public string AdministrationName { get; set; }
public string DepartmentName { get; set; }
public string PranchName { get; set; }
public string MobilePersonalNo { get; set; }
public string MobileWorkNo { get; set; }
public Nullable<System.DateTime> DateOfBirth { get; set; }
}
没测试过,但不会是这样吧:
DateOfBirth = u.DateOfBirth == null ? "-" : u.DateOfBirth.Value.ToString("<your date format here>")
当 DateOfBirth 为 Null 时,我想将类似“-”的字符串传递给 Crystal 报告,但出现此错误:
System.FormatException: 'String was not recognized as a valid DateTime.'
使用此代码时:
.Select(u => new
{
u.EmployeeCode,
u.EmployeeName,
JopName = string.IsNullOrEmpty(u.JopName) ? "-" : u.JopName,
Date_Hiring = u.Date_Hiring.GetValueOrDefault(),
AdministrationName = string.IsNullOrEmpty(u.AdministrationName) ? "-" : u.AdministrationName,
DepartmentName = string.IsNullOrEmpty(u.DepartmentName) ? "-" : u.DepartmentName,
PranchName = string.IsNullOrEmpty(u.PranchName) ? "-" : u.PranchName,
DateOfBirth =Convert.ToString(u.DateOfBirth) == string.Empty ? DateTime.Parse("-") : u.DateOfBirth
})
.ToList();
这是我的 Class :
public partial class SR1_Result
{
public int EmployeeCode { get; set; }
public string EmployeeName { get; set; }
public string JopName { get; set; }
public Nullable<System.DateTime> Date_Hiring { get; set; }
public Nullable<double> Nat_Salary { get; set; }
public string AdministrationName { get; set; }
public string DepartmentName { get; set; }
public string PranchName { get; set; }
public string MobilePersonalNo { get; set; }
public string MobileWorkNo { get; set; }
public Nullable<System.DateTime> DateOfBirth { get; set; }
}
没测试过,但不会是这样吧:
DateOfBirth = u.DateOfBirth == null ? "-" : u.DateOfBirth.Value.ToString("<your date format here>")