我主要是ASP.NET开发人员，但我工作的一个WinForms应用程序，并注意到了ASP.NET组合框（HTML选择），而的WinForms之间的较大差异。我发现（也许不正确的话）的WinForm中的组合框只有一个标签，而ASP.NET允许你指定一个标签和价值。

I am mostly an ASP.NET developer but I am working on a WinForms app and noticed a large difference between the ASP.NET combobox (html select) and that of WinForms. I found (maybe incorrectly so) that WinForm's combobox only has a "label" whereas ASP.NET allows you to specify a "label" and a "value".

我期待使用的WinForms组合框（或其他可比较的控制）与一个标签和一个值（Foobar的/ 42329）。这可能吗？我试图寻找答案，但没有拿出太多。如果没有办法实现这个目标，一个人如何继续前进，设计一个WinForm组合框，将重新present说与他们相关联的数据库ID城市？

I am looking to use a WinForms combobox (or another comparable control) with a label and a value (Foobar / 42329). Is this possible? I have attempted to search for the answer but haven't come up with much. If there is no way to accomplish that, how does one go ahead and design a WinForm combobox that would represent say Cities with their associated database id?

在多伦多/ 2324 在蒙特利尔/ 64547 在温哥华/ 1213

推荐答案

我能想到的几种方法：

覆盖的ToString（） A 城类返回名称+的/ +标识; 同上，但与类型转换器 添加 DisplayText 属性返回相同的，并使用的DisplayMember 的数据建立一个垫片类 override the ToString() of a City class to return Name + " / " + Id; ditto, but with a TypeConverter add a DisplayText property that return the same, and use DisplayMember build a shim class for the data

在过去的：

var data = cities.Select(city => new {
     Id = city.Id, Text = city.Name + " / " + city.Id }).ToList();
cbo.ValueMember = "Id";
cbo.DisplayMember = "Text";
cbo.DataSource = data;