Using F2 as a hot key to Rename an Item in a ListCtrl or TreeCtrl

I had learned how to use ListCtrl and TreeCtrl using the examples given in CodeGuru. Soon I felt the need for a hotkey F2 to rename an Item (As in Internet Explorer), and add CUT, COPY, PASTE and Undo on the EditCtrl that appears. These functionality can be achieved by a small modification to the Article posted by Zafir Anjum.

Although I have taken great care while coding this use this code at your own risk.

Add the following code to the .cpp file of your CListCtrl or CListView

BEGIN_MESSAGE_MAP(CMyListView, CListView)
    ON_WM_KEYDOWN()
    ON_NOTIFY_REFLECT_EX( LVN_BEGINLABELEDIT, OnBeginLabelEdit )
    ON_NOTIFY_REFLECT_EX( LVN_ENDLABELEDIT, OnEndLabelEdit )
END_MESSAGE_MAP()

void CMyListView::OnKeyDown( UINT nChar, UINT nRepCnt, UINT nFlags )
{
    CListCtrl& oListCtrl = GetListCtrl( );
    switch( nChar )
    {
    case VK_F2:
        {
            // To Use F2 as hot Key to get EditCtrl on the ListView it must have 
            // the Style LVS_EDITLABELS
            ASSERT( oListCtrl.GetStyle() & LVS_EDITLABELS );

            // don't do an Edit Label when the multiple Items are selected
            if( oListCtrl.GetSelectedCount( ) == 1 )
            {
                UINT nListSelectedItem = GetSelectedItem();
                VERIFY( oListCtrl.EditLabel( nListSelectedItem ) != NULL );
            }
            else
                CListView::OnKeyDown( nChar, nRepCnt, nFlags );
        }
        break;

    default:
        CListView::OnKeyDown( nChar, nRepCnt, nFlags );
        break;
    }

}

// this Function Returns the first Selected Item In the List
UINT CMyListView::GetSelectedItem()
{
    CListCtrl& oListCtrl = GetListCtrl( );
    // this Function Valid Only when a Single Item Is Selected
    ASSERT( oListCtrl.GetSelectedCount( ) == 1 );

    UINT nNoOfItems = oListCtrl.GetItemCount( );

    for( UINT nListItem = 0; nListItem < nNoOfItems; nListItem++ )
        if( oListCtrl.GetItemState( nListItem, LVIS_SELECTED )  )
            break;

    ASSERT( nListItem < nNoOfItems );
    return nListItem;
}

Add this in the MessageMap section of CMyListView or CMyListCtrl file.
    afx_msg void OnKeyDown( UINT nChar, UINT nRepCnt, UINT nFlags );

Add this Function as a private Member Fn to your CMyListView or CMyListCtrl .h file.

    UINT GetSelectedItem();

Download demo project - 20 KB



Comments

  • no longer getting error

    Posted by Legacy on 04/28/1999 12:00am

    Originally posted by: Edward Evans

    I had close msdev and the next time I started it it worked just fine. Don't know why it couldn't find it the first time. In other words I had started up MSDev.exe and checked the AddIns boxes for the 2 addins and then loaded a project into that instance and got the errors. After closing and opening a new instace it worked just fine. Thanks for your help and efforts.

    Reply
Leave a Comment
  • Your email address will not be published. All fields are required.

Top White Papers and Webcasts

  • Organizations are increasingly gravitating toward mobile-first application development as they assess the need to revamp their application portfolios to support touch computing and mobility. Consumerization has brought higher expectations for application usability along with the mobile devices themselves. Enterprises are increasingly shifting their new application acquisitions and development efforts toward mobile platforms. With this backdrop, it is natural to expect application platform vendors to invest in …

  • Do you spend a lot of time thinking about your enemies? Attacker attribution - figuring out who's out to get you - is one of the most important things an organization can do to protect itself.  Because you have no hope of defending yourself if you don't understand who the attackers are. Good news? Every organization isn't targeted by all the attackers. Bad news? No one can identify your potential attackers as well as you. Read this graphics-rich threat summary for 2014 to determine who might be your next …

Most Popular Programming Stories

More for Developers

RSS Feeds

Thanks for your registration, follow us on our social networks to keep up-to-date