Combobox Data Binding (independent choice)

Question

i bind some data at two different combobox like this:

BindingList<Customer> customers = new BindingList<Customer>();
customer.Add(new Customer(1, "Mike"));
customer.Add(new Customer(2, "Max"));
customer.Add(new Customer(3, "Taylor"));

combobox1.DisplayMember = "Name";
combobox1.ValueMember = "Id";
combobox1.DataSource = customers;

combobox2.DisplayMember = "Name";
combobox2.ValueMember = "Id";
combobox2.DataSource = customers;

It's working good, but if i selecting some item in combobox1 this item automatically select in combobox2. How to resolve this problem (need independent choice) ?

Not quite, copy it's create a new object, but my BindingList having more then 100 rows. — deeperzone, May 17 '15 at 20:57
But my solution is the only one which is working. Even the answers in the duplicate are quite similar to mine.... If it helped you anyway,, can you please mark it as solevd? Thanjs — cramopy, May 17 '15 at 21:10

cramopy · Accepted Answer · 2015-05-17T19:01:22.853

1

The following code does work seamlessly for me:

BindingList<Customer> customer = new BindingList<Customer>();
customer.Add(new Customer(1, "Mike"));
customer.Add(new Customer(2, "Max"));
customer.Add(new Customer(3, "Taylor"));

BindingList<Customer> customer2 = new BindingList<Customer>(customer);

combobox1.DisplayMember = "Name";
combobox1.ValueMember = "Id";
combobox1.DataSource = customer;

combobox2.DisplayMember = "Name";
combobox2.ValueMember = "Id";
combobox2.DataSource = customer2;

edited May 17 '15 at 19:01

answered May 17 '15 at 18:18

cramopy

3,459
6
28
42

1

customers2 = customers --> is the same instance. Isn't it? My advice to create a new instance by passing a list of items into constructor or something like that. – George Mamaladze May 17 '15 at 18:22
Thanks, but it's not working, same effect. – deeperzone May 17 '15 at 18:36
@deeperzone I've seen there is a `CopyTo` extension method so please try this one,, I'll add it in a couple of minutes. – cramopy May 17 '15 at 18:46
@deeperzone now fixed, works fine for me. Tested it also!! – cramopy May 17 '15 at 19:01

Combobox Data Binding (independent choice)

1 Answers1