Visual C++ and MFC Programming 2nd Edition

Visual C++ and MFC Fundamentals Chapter 20: List-Based Controls

// Fill out the Sample Fields list and select the first item

for(int j = 0; j < SizeContacts; j++)

m_SampleFields.AddString(Contacts[j]);

m_SampleFields.SetCurSel(0);

}

void CTableWizardDlg::OnSelectPersonal()

{

// TODO: Add your control notification handler code here

// Empty the lists

m_SampleTables.ResetContent();

m_SampleFields.ResetContent();

// Fill out the list

for(int i = 0; i < SizePersonal; i++)

m_SampleTables.AddString(Personal[i]);

// Select the first item in the list

m_SampleTables.SetCurSel(0);

// Fill out the Sample Fields list and select the first item

for(int j = 0; j < SizeAddresses; j++)

m_SampleFields.AddString(Addresses[j]);

m_SampleFields.SetCurSel(0);

}

16. Test your program and return to MSVC

20.1.4..List Box Messages and Events..........................................................

In order to user the list box as a control, it must first receive focus. This can be visible by

either the first item having a rectangle drawn around it or at least on the items being

selected. When the list box receives focus, it sends the LBN_SETFOCUS notification

message. On the other hand, once the user clicks another control or another application,

the list box loses focus and consequently sends the LBN_KILLFOCUS notification

message.

As clicking is the most performed action on a list box, when the user clicks an item, it

becomes selected. If the user clicks another item of a non-Multiple Selection list box, as

the selection is going to be changed, the LBN_SELCHANGE notification message is

sent. If the selection is cancelled, the LBN_SELCANCEL notification message is sent.

If the user double-clicks an item in the list box, the LBN_DBLCLK notification message

is sent.

Practical Learning: Exploring List Boxes

1. When the user clicks a table in the Sample Tables list box, we must change the
   content of the Sample Fields list box and fill it out with the fields that are part of the
   selected table.
   Right-click the IDC_SAMPLE_TABLES list box and click Add Event Handler


2. In the Messages Type list, click LBN_SELCHANGE and, in the Class List, make
   sure CTableWizardDlg is selected