来自 LINQ 查询的 ListBox 数据源

Question

Let's say there is a List<Person> where Person{Name, age, etc} .

What I want is a ListBox with all Person's names as items. Only detail. I want it to update automatically.

I wonder if it is possible to create a dynamic datasource that gets the names of the List<Person> and then the ListBox is binded to that datasource.

Any suggestions other than using a datasourse are welcome. I found LinqDataSource that is used in .net 4. Anything similar to.Net3.5?

Answer 1

I believe you are looking for something "more" than this but I am not sure from your question what that is. So I am posting this code for you to further explain your goal.

    namespace SO_Forms_Demo
{
   public partial class Form1 : Form
   {
      List<person> people;
      public Form1()
      {
         InitializeComponent();

         List<string> dataList = new List<string>(){"Moe","Larry","Curly"};
         listBox1.DataSource = dataList;

          people = new List<person>(){new person(){name="Moe",age=44,shoeSize=9},
                                       new person(){name="Larry",age=45,shoeSize=10},
                                       new person(){name="Curly",age=46,shoeSize=11}
                                      };
          bindList2();
      }

      private void button1_Click(object sender, EventArgs e)
      {
         person Shemp = new person() { name = "Shemp", age = 49, shoeSize = 12 };
         people.Add(Shemp);
         bindList2();
      }

      private void bindList2()
      {
         listBox2.DataSource = null;
         listBox2.DisplayMember = "name";
         listBox2.DataSource = people;
      }

   }

   public class person
   {
      public string name { get; set; }
      public int age { get; set; }
      public int shoeSize { get; set; }
   }


}