如何将两个班级成员组合成一个组合框的联合DisplayMember？

Question

我已经获得了以下代码，用通用列表的内容填充组合框，尝试使用FirstName和LastName的串联作为组合框的DisplayMember：

private void PopulateStudentsComboBox()
{
    if (System.IO.File.Exists(AYttFMConstsAndUtils.STUDENTS_FILENAME))
    {
        if (null == _studentsList)
        {
            var students = System.IO.File.ReadAllText(AYttFMConstsAndUtils.STUDENTS_FILENAME);
            _studentsList = JsonConvert.DeserializeObject<List<Student>>(students);
        }
        // Sort by firstname            
        _studentsList = _studentsList.OrderBy(i => i.FirstName).ToList();
        comboBoxStudents.DataSource = _studentsList; 
        string firstNameLastName = "FirstName LastName";
        comboBoxStudents.DisplayMember = firstNameLastName;
        comboBoxStudents.ValueMember = "StudentID";
    }
}

这不起作用; ValueMember成为DisplayMember。

这有效：

. . .
comboBoxStudents.DataSource = _studentsList; 
comboBoxStudents.DisplayMember = "FirstName";
comboBoxStudents.ValueMember = "StudentID";
. . .

...但是没有削减芥末 - 我需要给定的姓氏和姓氏，而不仅仅是给定的名字（反之亦然）。

如何组合两个类字段组成一个组合框的DisplayMember？

Answer 1

我会使用返回的Property扩展Student类 "FirstName + LastName"

像...

...
    public string DisplayName
        {
            get
            {
                return string.Format("{0} {1}", this.FirstName, this.LastName);
            }
        }
...

将此属性分配给DisplayMember

comboBoxStudents.DisplayMember = "DisplayName";