Question

I got another problem with my ListBox.

I have a class Entity with string Forename, Surname.
Now I would like to show the user every Entity in a ListBox personList.
Therefor I do this:

foreach(Entity e in EntityHandler.entityList)
{
    personList.Items.Add(e.Name);
}

The user can select multiple entries of personList.

After clicking a button the application shall evaluate every selected entry in a foreach-loop.
For this I simply use

foreach(string selected in personList.SelectedItems)
{
    //do some stuff
}

The problem is now that there could be multiple Entity instances with exactly the same values.
The only static difference between every Entity is its UID but I don’t want to write this ugly UID into their entries.

Is there a way how I could get the corresponding Entity out of the string value that I get from SelectedItems?
I read about overriding GetHashCode() and Equal() but I didn’t get an idea why this should work?

Thanks in advance!

Answer 1

You should bind actual entitys to ListBox instead only names and set DisplayMemeber property of ListBox to “Name” property of Entity. This will give you direct access to ListBox items – Entities.

Take a look at this link on how to bind objects to ListBox:
http://sharpertutorials.com/list-box-data-binding/