C# - Cannot do Key-Value in a ListBox in WinForms

Question

I'm writing a C# app using a ListBox in WinForms.

I get my data (id and full name) from an XML file. I want to show full names in the listbox and when I select one of them, I want to get the relevant id.

I tried using SelectedValue property with no luck.

I also tried KeyValuePair and it shows "[full name, id]" in the listbox, which is not what I wanted:

LB_UserList.Items.Add(new KeyValuePair<string, string>(full_name, node["user_id"].InnerText));

How can I simulate a HTML select in C# in short? I want to show full names in the listbox and to get relevant id in the backend.

Answer 1

use c# dictionary for this,

Dictionary<string, string> list = new Dictionary<string, string>();
list.Add("item 1", "Item 1");
list.Add("item 2", "Item 2");
list.Add("item 3", "Item 3");
list.Add("item 4", "Item 4");

dropdown.DataSource = list;
dropdown.DataTextField = "Value";
dropdown.DataValueField = "Key";
dropdown.DataBind();

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EDIT:

listBox.DataSource = new BindingSource(list, null); 
listBox.ValueMember = "Key";
listBox.DisplayMember = "Value";