ASP NET MVC剑道网格和列绑定

Question

我有一个kendo网格，其中我从一个表中绑定列。但是当我想从另一个表（JobItemModel）添加一列时，该列中的数据为空。请帮忙。感谢

@(Html.Kendo().Grid<Modus.Presentation.Models.Jobs.JobModel>()
       .Name("#jobs-grid")
       .EnableCustomBinding(true)
       .DataSource(dataSource => dataSource
       .Ajax()
       .Model(model => model.Id(x => x.Id))
       .Read(read => read.Action("List", "Jobs"))
)
.Columns(columns =>
        {
             columns.Bound(x => x.Id).Visible(false);
             columns.Bound(x => x.JobItem).Visible(false);
             columns.Bound(x => x.JobNumber);
             columns.Bound(x => x.Customer.Id).ClientTemplate("#= Customer.Name #");
             columns.Bound(x => x.JobItem.Name); 
             columns.Bound(x => x.JobItem.DateCompletition);
             columns.Command(command => command.Custom("View Details").Click("showDetails"));

模特：

public class JobModel 
{
     //public virtual int Id { get; set; }
     public JobModel()
     {
          JobItems = new List<JobItemModel>();
     }

     [ModusResourceDisplayName("gp.Job.Fields.JobNumber")]
     public string JobNumber { get; set; }

     [ModusResourceDisplayName("gp.Job.Fields.Customer")]
     public int CustomerId { get; set; }

     [ModusResourceDisplayName("gp.Job.Fields.Contact")]
     [UIHint("CustomerContact")]
     public int ContactId { get; set; }

     public List<JobItemModel>JobItems { get; set; }

     public CustomerModel Customer { get; set; }

     public JobItemModel JobItem { get; set; }
}