标签：ClassId StudentClassServer students comboBox 基础 studentClassServer comboBox1 下拉框
private void FrmAddStudent_Load(object sender, EventArgs e)
{
StudentClassServer studentClassServer = new StudentClassServer();
List<StudentClass> students = studentClassServer.GetStudentClasses(); //获取下拉框的数据
//向集合第一个位置插入一条数据
students.Insert(0,new StudentClass()
{
ClassId = 0,
ClassName="请选择班级"
});
this.comboBox1.DataSource = students; // 将数据赋值给下拉框
this.comboBox1.DisplayMember = "ClassName"; //设置下拉框的 label值
this.comboBox1.ValueMember = "ClassId"; //设置下拉框的value值
this.comboBox1.SelectedIndex = 1; //设置默认选择
}
StudentClassServer 类此次省略了,如果想查看的话可以点击 https://www.cnblogs.com/tlfe/p/18243303 查看
标签：ClassId,
StudentClassServer,
students,
comboBox,
基础,
studentClassServer,
comboBox1,
下拉框
From： https://www.cnblogs.com/tlfe/p/18243318