duplicate last names are not displayed in report parameter dropdown

[Simon]

Hello,

I have an asp.net webproject including telerik reporting.

In a report there are several report parameters, two with datetime and one with string and multivalue.

In the report parameter with string and multivalue should be load the lastnames of the driver (car driver)

The company has 36 drivers and two of them have the same last name, here "Rick", namely Dennis and Micha Rick.

All driver are shown in the dropdown, except "Dennis Rick".

I don't know why.

Here is the class with its method for the datasource for this report parameter:

namespace ReportLibrary1
{
   public  class MyEmployees
    {
        //Report Parameter Driver LastName
        public object[] GetEmployees()

        {
            ResourcesDomainService rdservice = new ResourcesDomainService();
            object[] employees = new object[rdservice.Employees.Count];

            employees = rdservice.Employees.Where(x => x.DriverId.Length > 0).OrderBy(x => x.LastName).ToArray();

            return employees;
        }
    }
}

 

When I make a breakpoint in the row and go with my mouse pointer over empoyees I can see that all drivers are returned including Dennis Rick.

But in the report "Dennis Rick" is missing in the drodown list.

Have somebody an idea why it is so?

 

Regards

Simon