Lookup Contacts using a listbox

[thartung]

I am trying to learn how to create a listbox that is populated by the PIM contacts, and being a noob, I am a bit confused. I have found some examples that show how to add the contacts collection and so forth, but I am not sure how to extact the selected item in the list. So far this is what I have:

form2.show
sendlist.New1
ContactsCollection.New1("Contacts")
ContactsCollection.SortItems("LastName",false) 'sorts the contacts using the last name field.
For i = 0 To ContactsCollection.Count - 1
Contact.Value = ContactsCollection.GetItem(i)
listbox1.Add(Contact.LastName & " " & Contact.firstName) 'Add the contact's first and last name to ListBox1.
Next
Contact.Value = ContactsCollection.GetItem(listbox1.SelectedIndex)

It errors out on the last line. Error says object reference not set

Thank you for any help provided

[Erel]

What is sendlist?
Did you add the ContactsCollection object and the Contact object (with Tools - Add Object)?
You are also missing Contact.New1 in the beginning.

[RandomCoder]

This might help, I did it for someone else asking a very similar question.
It only shows contacts that have a mobile number listed.
Modify it to your own needs,

PS don't forget to add the Outlook.dll's to the working directory.

Regards,
RandomCoder

[thartung]

Thank you for the code. I loaded it on my device making sure the outlook.dll was in the working directory. When I run it on my device the listbox "Select Name" and "Mobile Number" are blank. No errors, but I would have expected to see a list of my contacts with a mobile number. I realize when running on the desktop they would be blank because of the "dummy" dll, but shouldn't I see something on the device?

[thartung]

I just thought..... I have basic4PPC and all my sample code on my storage card. Could this be a problem?? I have been able to successfully run other samples

[Erel]

I don't think that the storage card is the problem.
Please try the attached example.

[RandomCoder]

I'm sorry to hear that you had problems with the code.
Is it possible that you have a blank entry within your contacts?
Because the listbox is set to a height of only one entry, it may be that the box is populated but just showing the blank entry, try scrolling down.
As it didn't error I would guess that it is working, you could also try making the listbox larger.

Regards,
RandomCoder

[thartung]

Thank you for the code Erel. This snippet works, yet the example that RandomCoder provided still doesn't seem to show any contacts even after I made the listbox larger. Not a big deal. I appreciate the time both of you spent helping me.

Thanks again!!

[Erel]

RandomCoder's example shows only contacts which have a MobilePhoneNumber.
I've changed his example to show all contacts.

[RandomCoder]

Sorry for the confusion caused, but I did state that it selects only contacts having a mobile number.
If loading all contacts regardless of the contact details then there is no need to keep track of the index as this will be unaltered.

Regards,
RandomCoder