Question

我正在尝试做一些非常简单的事情 - 将CheckedListBox绑定到对象列表。

课程定义

namespace Models
{
    public class Department
    {
        public int ID { get; set; }
        public string Description { get; set; }
    }
}

复制问题的最小完整代码示例

（首先创建CheckedListBox clbDepartments）

    private void Form1_Load(object sender, EventArgs e)
    {
        List<Department> departmentList = new List<Department>();
        departmentList.Add(new Department { ID = 1, Description = "HR" });
        departmentList.Add(new Department { ID = 2, Description = "IT" });
        departmentList.Add(new Department { ID = 3, Description = "Sales" });

        var departmentBindingList = new BindingList<Department>(departmentList);
        var departmentSource = new BindingSource(departmentBindingList, null);
        clbDepartments.DisplayMember = "Description";
        clbDepartments.ValueMember = "ID";
        clbDepartments.DataSource = departmentSource;
    }

列表绑定 - 我可以在CheckboxList中的每个项目List<Department>中看到一个项目。

但是，不是显示"Description"字段DisplayMember的值，而是显示每个项目的"Models.Department"。

预期输出

HR

IT

销售

实际输出

Models.Department

Models.Department

Models.Department

我做错了什么？

Answer 1

您应该更改订单首先设置DataSource，然后设置DisplayMember和ValueMember

这应该有效：

clbDepartments.DataSource = departmentSource;
clbDepartments.DisplayMember = "Description";
clbDepartments.ValueMember = "ID";

为什么CheckedListBox DisplayMember不显示？

1 个答案: