C# Devexpress动态创建外部报告并将对象动态绑定为数据源

我有三个类（Employee、EmployeeCard和Children）是这样实现的

public class Employee
{
   public Employee()
   {
       Children = new List<Child>();
   }
   public virtual string FirstName { get; set; }
   public virtual string LastName { get; set; }
   public virtual EmployeeCard EmployeeCard { get; set; }
   public virtual IList<Child> Children { get; protected set; }
   public virtual void AddChild(Child child)
   {
       child.Employee = this;
       Children.Add(child);
   }
   public static List<Employee> GetData()
   {
       List<Employee> empList = new List<Employee>();
       for(i=0;i<5;i++)
       {
           Employee emp = new Employee();
           emp.FirstName = "Fname" + i.ToString();
           emp.LastName = "Lname" + i.ToString();
           emp.EmployeeCard = new EmployeeCard();
           emp.EmployeeCard.StartWorkingDate = DateTime.Now.Date.AddDays(-i);
           empList.Add(emp);
            for(int j=0;j<2;j++)
            {
                Children child = new Children();
                child.FirstName = "ChildFname" + j.ToString();
                child.LastName = "ChildLname" + j.ToString();
                empList.Children.Add(child);
            }
       }
       return empList;
   }
}

public class Child
{
   public virtual string FirstName { get; set; }
   public virtual string LastName { get; set; }
   public virtual Employee Employee { get; set; }  
}

public class EmployeeCard
{
   public virtual Employee Employee { get; set; }
   public virtual DateTime? StartWorkingDate { get; set; }
}

var detailReportBandEmployeeCard = new DetailReportBand
{
     KeepTogether = true,
     DataMember = "EmployeeCard",
     DataSource = ReportDataSource
};

for (int j = 0; j < 2; j++)
{
     Child child = new Child();
     child.FirstName = "ChildFname" + j.ToString();
     child.LastName = "ChildLname" + j.ToString();
     emp.AddChild(child);
}

公共类员工
{
公职人员（）
{
Children=新列表（）；
}
公共虚拟字符串FirstName{get；set；}
公共虚拟字符串LastName{get；set；}
公共虚拟员工卡员工卡{get；set；}
公共虚拟IList子项{get；protected set；}
公共虚拟void AddChild（子项）
{
child.Employee=this；
添加（child）；
}
公共静态列表GetData（）
{
List empList=新列表（）；
对于（i=0；i而言，问题在于您为卡片创建了这样的细节栏

public class Employee
{
   public Employee()
   {
       Children = new List<Child>();
   }
   public virtual string FirstName { get; set; }
   public virtual string LastName { get; set; }
   public virtual EmployeeCard EmployeeCard { get; set; }
   public virtual IList<Child> Children { get; protected set; }
   public virtual void AddChild(Child child)
   {
       child.Employee = this;
       Children.Add(child);
   }
   public static List<Employee> GetData()
   {
       List<Employee> empList = new List<Employee>();
       for(i=0;i<5;i++)
       {
           Employee emp = new Employee();
           emp.FirstName = "Fname" + i.ToString();
           emp.LastName = "Lname" + i.ToString();
           emp.EmployeeCard = new EmployeeCard();
           emp.EmployeeCard.StartWorkingDate = DateTime.Now.Date.AddDays(-i);
           empList.Add(emp);
            for(int j=0;j<2;j++)
            {
                Children child = new Children();
                child.FirstName = "ChildFname" + j.ToString();
                child.LastName = "ChildLname" + j.ToString();
                empList.Children.Add(child);
            }
       }
       return empList;
   }
}

public class Child
{
   public virtual string FirstName { get; set; }
   public virtual string LastName { get; set; }
   public virtual Employee Employee { get; set; }  
}

public class EmployeeCard
{
   public virtual Employee Employee { get; set; }
   public virtual DateTime? StartWorkingDate { get; set; }
}

var detailReportBandEmployeeCard = new DetailReportBand
{
     KeepTogether = true,
     DataMember = "EmployeeCard",
     DataSource = ReportDataSource
};

for (int j = 0; j < 2; j++)
{
     Child child = new Child();
     child.FirstName = "ChildFname" + j.ToString();
     child.LastName = "ChildLname" + j.ToString();
     emp.AddChild(child);
}

并将数据源绑定到此属性

public virtual EmployeeCard EmployeeCard { get; set; }

您只能将列表用作数据源，EmployeCard不是列表。
如果您只有一个对象，则不需要detailBandEmployeeCard，您可以将标签直接放入detailBandEmployee中

XRLabel lbStartDate = new XRLabel()
{
    LocationF = new PointF(200, 10),
    SizeF = new SizeF(440, 50),
    TextAlignment = TextAlignment.BottomLeft,
    Font = new Font("Arial", 24)
};
//detailBandEmployeeCard.Controls.Add(lbStartDate);
//lbStartDate.DataBindings.Add("Text", null, "StartWorkingDate");

detailBandEmployee.Controls.Add(lbLastName);
lbStartDate.DataBindings.Add("Text", null, "EmployeeCard.StartWorkingDate");

GetData（）在应该是Child的时候使用Children类，而且它不会填充列表

public class Employee
{
   public Employee()
   {
       Children = new List<Child>();
   }
   public virtual string FirstName { get; set; }
   public virtual string LastName { get; set; }
   public virtual EmployeeCard EmployeeCard { get; set; }
   public virtual IList<Child> Children { get; protected set; }
   public virtual void AddChild(Child child)
   {
       child.Employee = this;
       Children.Add(child);
   }
   public static List<Employee> GetData()
   {
       List<Employee> empList = new List<Employee>();
       for(i=0;i<5;i++)
       {
           Employee emp = new Employee();
           emp.FirstName = "Fname" + i.ToString();
           emp.LastName = "Lname" + i.ToString();
           emp.EmployeeCard = new EmployeeCard();
           emp.EmployeeCard.StartWorkingDate = DateTime.Now.Date.AddDays(-i);
           empList.Add(emp);
            for(int j=0;j<2;j++)
            {
                Children child = new Children();
                child.FirstName = "ChildFname" + j.ToString();
                child.LastName = "ChildLname" + j.ToString();
                empList.Children.Add(child);
            }
       }
       return empList;
   }
}

public class Child
{
   public virtual string FirstName { get; set; }
   public virtual string LastName { get; set; }
   public virtual Employee Employee { get; set; }  
}

public class EmployeeCard
{
   public virtual Employee Employee { get; set; }
   public virtual DateTime? StartWorkingDate { get; set; }
}

var detailReportBandEmployeeCard = new DetailReportBand
{
     KeepTogether = true,
     DataMember = "EmployeeCard",
     DataSource = ReportDataSource
};

for (int j = 0; j < 2; j++)
{
     Child child = new Child();
     child.FirstName = "ChildFname" + j.ToString();
     child.LastName = "ChildLname" + j.ToString();
     emp.AddChild(child);
}

for（int j=0；j<2；j++）
{
子项=新子项（）；
child.FirstName=“ChildFname”+j.ToString（）；
child.LastName=“ChildLname”+j.ToString（）；
行政长官AddChild（child）；
}
您可以发布如何进行绑定以及如何构建employee对象吗？@deramko请参阅更新