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

[CoolPG]

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..

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

[ovidiucucu]

[ 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").

[CoolPG]

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...

[CoolPG]

One more help required...

I have added some columns into the SysListView32 control

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...

[ovidiucucu]

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.

    // 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"));

[carl666]

Read MSDN and use MS Grid controls instead

[CoolPG]

@ 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.