c# - 组合框上的数据绑定(bind)

Question

我正在将项目添加到组合框中，如下所示:

   readonly Dictionary<string, string> _persons = new Dictionary<string, string>();
   ....
   //<no123, Adam>, <no234, Jason> etc..
   foreach (string key in _persons.Keys)
   {
        //Adding person code
        cmbPaidBy.Items.Add(key);                   
   }

我想通过显示字典中的值(即名称)使组合框更具可读性。但是我需要个人代码(no123 等)来根据用户输入从数据库中获取。

正确的做法是什么？如何将值和键绑定(bind)到组合框项目？

Answer 1

DisplayMember 和 ValueMember 属性为您准备就绪:

cmbPaidBy.DataSource = new BindingSource(_persons, null); 
cmbPaidBy.DisplayMember = "Value"; 
cmbPaidBy.ValueMember = "Key"; 

更深入 information here ,在 BindingSource Class 上

The BindingSource component serves many purposes. First, it simplifies binding controls on a form to data by providing currency management, change notification, and other services between Windows Forms controls and data source