Asp.net 无法将自定义数据类型作为参数传递给wcf服务

我创建了一个自定义库项目，它有Employee类来保存员工信息

namespace Test.SampleLib
{

    public class Employee
    {

        public string EmployeeName { get; set; }

        public double EmployeeSalary {get; set; }
    }
}

我将Employee类库添加到WCF服务中

public Test.SampleLib.Employee GetDataUsingDataContract(Test.SampleLib.Employee composite)
{

    return composite;
}

我试图使用该服务并访问GetDataUsingDataContract（）方法

错误是

'Argument 1: cannot convert from 'Test.SampleLib.Employee' to 'Test.Web.ServiceReference1.Employee'

---

您需要在自定义数据类型及其要公开的属性上具有

[DataContract]

和

[DataMember]

属性

    [DataContract]
    public class Employee
    {
        [DataMember]
        public string EmployeeName { get; set; }

        [DataMember]
        public double EmployeeSalary {get; set; }
    }

---

您是否尝试将变量声明为Test.Web.ServiceReference1.Employee而不是Test.SampleLib.Employee？

    [DataContract]
    public class Employee
    {
        [DataMember]
        public string EmployeeName { get; set; }

        [DataMember]
        public double EmployeeSalary {get; set; }
    }