8. Get Item Infomation

TCHAR szBuf[1024];
LVITEM lvi;
lvi.iItem = nItemIndex;
lvi.iSubItem = 0;
lvi.mask = LVIF_TEXT;
lvi.pszText = szBuf;
lvi.cchTextMax = 1024;
m_list.GetItem(&lvi);

More infomation: Q173242: Use Masks to Set/Get Item States in CListCtrl

9. Get the header titile of CListCtrl

LVCOLUMN lvcol;
char  str[256];
int   nColNum;
CString  strColumnName[MAX_COL];
nColNum = 0;
lvcol.mask = LVCF_TEXT;
lvcol.pszText = str;
lvcol.cchTextMax = 256;
while(m_list.GetColumn(nColNum, &lvcol))
{
    strColumnName[nColNum] = lvcol.pszText;
    nColNum++;
}

10. Scoll the scollbar to ensure item visible

 

m_list.EnsureVisible(i, FALSE);

11. Get the column count of CListCtrl

int nHeadNum = m_list.GetHeaderCtrl()->GetItemCount();

12. Delete all the columns

Method 1:

while ( m_list.DeleteColumn (0));

Once you delete the first column, the next columns will move above.

Method 2:

for (int i=nColumns-1; i>=0; i–)

          m_list.DeleteColumn (i);

13. Get the row and column index of the clicked item

Method 1:

void CTestDlg::OnClickList1(NMHDR* pNMHDR, LRESULT* pResult)
{
   DWORD dwPos = GetMessagePos();
   CPoint point( LOWORD(dwPos), HIWORD(dwPos) );
   m_list.ScreenToClient(&point);
   LVHITTESTINFO lvinfo;
   lvinfo.pt = point;
   lvinfo.flags = LVHT_ABOVE;
   int nItem = m_list.SubItemHitTest(&lvinfo);
   if(nItem != -1)
   {
        CString strtemp;
        strtemp.Format(”You clicked row %d column %d”, lvinfo.iItem, lvinfo.iSubItem);
        AfxMessageBox(strtemp);
   }
}

Method 2:

void CTestDlg::OnClickList1(NMHDR* pNMHDR, LRESULT* pResult)
{
   NM_LISTVIEW* pNMListView = (NM_LISTVIEW*)pNMHDR;
   if(pNMListView->iItem != -1)
   {
        CString strtemp;
        strtemp.Format(”You clicked row %d column %d”,
                        pNMListView->iItem, pNMListView->iSubItem);
        AfxMessageBox(strtemp);
   }
}

14. Check if you clicked on the checkbox

void CTestDlg::OnClickList1(NMHDR* pNMHDR, LRESULT* pResult)
{
   DWORD dwPos = GetMessagePos();
   CPoint point( LOWORD(dwPos), HIWORD(dwPos) );
   m_list.ScreenToClient(&point);
   LVHITTESTINFO lvinfo;
   lvinfo.pt = point;
   lvinfo.flags = LVHT_ABOVE;
   UINT nFlag;
   int nItem = m_list.HitTest(point, &nFlag);
   if(nFlag == LVHT_ONITEMSTATEICON)
   {
        AfxMessageBox(”clicked on the checkbox”);
   }
   *pResult = 0;
}

15. pop up menu when right mouse button clicked

void CTestDlg::OnRclickList1(NMHDR* pNMHDR, LRESULT* pResult)
{
    NM_LISTVIEW* pNMListView = (NM_LISTVIEW*)pNMHDR;
    if(pNMListView->iItem != -1)
    {
        DWORD dwPos = GetMessagePos();
        CPoint point( LOWORD(dwPos), HIWORD(dwPos) );
        CMenu menu;
        VERIFY( menu.LoadMenu( IDR_MENU1 ) );
        CMenu* popup = menu.GetSubMenu(0);
        ASSERT( popup != NULL );
        popup->TrackPopupMenu(TPM_LEFTALIGN | TPM_RIGHTBUTTON, point.x, point.y, this );
    }
    *pResult = 0;
}

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Permalink: Code Library - 30 Great Tips of CListCtrl Program(2)

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