如何将两个 class 成员合并为组合框的联合 DisplayMember？

Question

我有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";
    }
}

这行不通； ValueMember 成为 DisplayMember。

这个有效：

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

...但不切芥末 - 我需要名字和姓氏，而不仅仅是名字（反之亦然）。

如何组合两个 class 字段来组成组合框的 DisplayMember？

Answer 1

我会用属性扩展 Student class returns "FirstName + LastName"

喜欢...

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

而不是将此属性分配给 DisplayMember

comboBoxStudents.DisplayMember = "DisplayName";

如何将两个 class 成员合并为组合框的联合 DisplayMember？

How can I combine two class members to be a combobox's joint DisplayMember?

c#

combobox

generic-list

valuemember