C#

int i = Convert.ToInt32 (binaryString, 2);

Convert.ToInt32("0110101", 2);

public class MyClass
{
    public MyClass(string text, int value)
    {
        Text = text;
        Value = value;
    }
    public string Text
    {
        get;
        set;
    }
    public int Value
    {
        get;
        set;
    }
    public override string ToString()
    {
        return string.Format("{0}, Value={1}", Text, Value);
    }
}

listBox.Items.Add(new MyClass("Hello World", 1));

// ...

MyClass myClass = listBox.Items[0] as MyClass;
MessageBox.Show(myClass.Text);

ListView listView1 = new ListView()
lv.Items.Add("Key", "Text", null)

ListViewItem lvi;
lvi.BackColor = Color.Blue;
lvi.Focused = true;
lvi.Selected = true;
lvi.Text = "This is text of an item";
lvi.Name = "This is hidden name of an item";
listView1.Items.Add(lvi);

Saksida Bojan wrote:

Listbox stores only item as a Object (String, int, bool,...). You can't store Value and Text in a single item