Help Needed - How to draw Gridlines in ListBox (Non MFC) Win32
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Thread: Help Needed - How to draw Gridlines in ListBox (Non MFC) Win32

  1. #1
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    Exclamation Help Needed - How to draw Gridlines in ListBox (Non MFC) Win32

    Hi all.. i'm having a problem with the Listbox control in a Window. I need to display Gridlines(Horizontical lines) in the listbox control.

    I Searched the MSDN Documentation and found that, the LVS_EX_GRIDLINES style setting can do it for me.. and also, it must be used in conjunction with LVS_REPORT style.

    I tried, but was in vein.. nothing happened.. i used the ListView_SetExtendedStyleView() API and also tried out using the SendMessage() API... And that too failed.

    I searched google for sample codes, but didnt find any useful.. there are soo many codes and articles on MFC, but i dont know MFC.. i need only Win32 code.

    I will post my code snippet here..

    Code:
    icce.dwSize = sizeof(icce);
        icce.dwICC = ICC_LISTVIEW_CLASSES;
        InitCommonControlsEx(&icce);
    
    	hList = CreateWindowEx(WS_EX_CLIENTEDGE,"listbox","MyListBox...",WS_CHILD|WS_VISIBLE|LVS_REPORT ,5,40,480,290,appWindow, (HMENU)1003,hInst,(LPVOID)lpParam);
    	
    	ListView_SetExtendedListViewStyleEx(hList, LVS_EX_GRIDLINES, LVS_EX_GRIDLINES);
    Now, whats wrong with the code, where am i err-ing?

    I use this code inside a function named RenderList() and calls it from the WM_CREATE message handler of the Main window(Parent) hWnd.

    I will apreciate all your valuable inputs..

    Thanks in advance, and i'll vote you for sure if you helps me

  2. #2
    ovidiucucu's Avatar
    ovidiucucu is offline Moderator/Reviewer Power Poster
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    Re: Help Needed - How to draw Gridlines in ListBox (Non MFC) Win32

    [ Moved thread ]

    LVS_REPORT as LVS_EX_GRIDLINES styles are for listview control (having class name "SysListView32") and not for listbox (having class name "ListBox").
    Ovidiu Cucu
    "When in Rome, do as Romans do."
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  3. #3
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    Thumbs up Re: Help Needed - How to draw Gridlines in ListBox (Non MFC) Win32

    Thanks for your most valuable reply, ovidiucucu.

    Actually that will be the problem.. i will try it out, and come back.

    I'll reply if it does works or not..

    [Edit]

    Yes! It worked fine....

    Thanks once again...

  4. #4
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    Unhappy Re: Help Needed - How to draw Gridlines in ListBox (Non MFC) Win32

    One more help required...

    I have added some columns into the SysListView32 control

    Code :

    Code:
    LVCOLUMN hCtlListView1Column;
    			ZeroMemory(&hCtlListView1Column, sizeof(LVCOLUMN));
    			hCtlListView1Column.mask = LVCF_FMT | LVCF_WIDTH | LVCF_TEXT;
    			hCtlListView1Column.fmt = LVCFMT_LEFT;
    			hCtlListView1Column.cx = 100;
    			hCtlListView1Column.pszText = "Column 1";
    			ListView_InsertColumn(hList, 0, &hCtlListView1Column);
    			hCtlListView1Column.pszText = "Column 2";
    			ListView_InsertColumn(hList, 1, &hCtlListView1Column);
    Now, please tell me how can i set text in the columns? I tried with SendMessage() API

    and passed LB_ADDSTRING... but it didnt get work..

    Thanks in advance...

  5. #5
    ovidiucucu's Avatar
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    Re: Help Needed - How to draw Gridlines in ListBox (Non MFC) Win32

    Again, LB_ADDSTRING is a message for lisbox and not for listview (this two are quite different controls).
    To a listview you have to send LVM_xxx messages.

    Here is a brief examples which fills a listview with two lines and two columns.
    Code:
        // add two columns
        LVCOLUMN lvc = {0};
    
        lvc.mask = LVCF_TEXT|LVCF_FMT|LVCF_WIDTH|LVCF_SUBITEM;
        lvc.pszText = _T("Column 0"); // text
        lvc.fmt = LVCFMT_LEFT;        // left align text
        lvc.cx = 100;                 // column width
        lvc.iSubItem = 0;             // subitem
        ListView_InsertColumn(hList, 0, &lvc);
    
        lvc.pszText = _T("Column 1"); // text
        lvc.iSubItem = 1;             // subitem
        ListView_InsertColumn(hList, 1, &lvc);
    
        LVITEM lvi = {0};
    
        // add two "empty" items ("rows" for a report style listview)
        lvi.iItem = 0; // item index
        ListView_InsertItem(hList, &lvi);
        lvi.iItem = 1;
        ListView_InsertItem(hList, &lvi);
    
        // set items/subitems text
        ListView_SetItemText(hList, 0, 0, _T("line 0, col 0"));
        ListView_SetItemText(hList, 0, 1, _T("line 0, col 1"));
        ListView_SetItemText(hList, 1, 0, _T("line 1, col 0"));
        ListView_SetItemText(hList, 1, 1, _T("line 1, col 1"));
    Last edited by ovidiucucu; April 23rd, 2009 at 11:19 AM.
    Ovidiu Cucu
    "When in Rome, do as Romans do."
    Visit: Microsoft Virtual Academy
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  6. #6
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    Re: Help Needed - How to draw Gridlines in ListBox (Non MFC) Win32

    Read MSDN and use MS Grid controls instead

  7. #7
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    Thumbs up Re: Help Needed - How to draw Gridlines in ListBox (Non MFC) Win32

    @ ovidiucucu

    Thanks again bro.. your help is very very appreciative. thanks for sparing your valuable time to prepare a small snippet.

    Actually i wansn't awared about the SysListView32 control. Now i learnt many things about that control.. and surely i read MSDN and got more API's related to this control.

    @ Carl666

    can you please tell more detail about MS Grid? Sorry, i didnt find a match in the MSDN Documentation. can you atleast tell me the corect classname? is it advanced than the listview control?

    Thanks.

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