Thread: List view without images...

Can it be done? After several days of messing around with this control, and not finding any online examples that don't use an image list, I'm wondering if the fact that I'm not supplying one is causing the control to fail and display none of the items I add to it, even though LVM_INSERTITEM returns successfully every time.

Is an image list required for the control, or am I just missing something else? Is there another control that might work better that I don't know about? I'd use a ListBox if it could handle subitems.

I think an image list would be required, unless the ListView is in details mode (which acts quite like a listbox, except with subitems). Is details mode what you want, and did you set the style appropriately? If so, did you add the columns? (Items will not show until you add columns.)

Details/Report view is what I am going for. When I first started working on it, within my actual project, I added two columns, yes. When nothing came up, I figured I was doing it wrong, so I opened a test project to experiment with the control a bit, and since I decided to start with just a single column in the test, I did not add any columns. Are column inserts required when only a single column is being used?

Here's the more important bits of code from the test project...

Code:

  HWND hList = CreateWindowEx(WS_EX_OVERLAPPEDWINDOW, WC_LISTVIEW, NULL,
                              WS_CHILD | WS_VISIBLE | LVS_REPORT,
                              0, 0, 300, 300,
                              hwnd, 0, hInstance, NULL);
  if(hList == NULL)
   {
    printf("CreateWindowEx() Failure\n");
    return 0;
   }

  LVITEM ItemInfo;
  ZeroMemory(&ItemInfo, sizeof(ItemInfo));
  ItemInfo.mask = LVIF_TEXT;
  ItemInfo.iSubItem   = 0;

  ItemInfo.iItem      = 0;
  ItemInfo.pszText    = "Test Account #1";
  ItemInfo.cchTextMax = 20;
  uint result = SendMessage(hList, LVM_INSERTITEM, 0, (LPARAM)&ItemInfo);
  if(result == -1)
    printf("LVM_INSERTITEM Failure\n");
  else
    printf("LVM_INSERTITEM Success: %i\n", result);
  SendMessage(hList, LVM_SETITEMTEXT, 0, (LPARAM)&ItemInfo);

  ItemInfo.iItem      = 1;
  ItemInfo.pszText    = "Test Account #2";
  ItemInfo.cchTextMax = 20;
  result = SendMessage(hList, LVM_INSERTITEM, 0, (LPARAM)&ItemInfo);
  if(result == -1)
    printf("LVM_INSERTITEM Failure\n");
  else
    printf("LVM_INSERTITEM Success: %i\n", result);
  SendMessage(hList, LVM_SETITEMTEXT, 1, (LPARAM)&ItemInfo);

  ItemInfo.iItem      = 2;
  ItemInfo.pszText    = "Test Account #3";
  ItemInfo.cchTextMax = 20;
  result = SendMessage(hList, LVM_INSERTITEM, 0, (LPARAM)&ItemInfo);
  if(result == -1)
    printf("LVM_INSERTITEM Failure\n");
  else
    printf("LVM_INSERTITEM Success: %i\n", result);
  SendMessage(hList, LVM_SETITEMTEXT, 1, (LPARAM)&ItemInfo);

Note that I have called InitCommonControlsEx().

Yes -- even for single column listviews, you need to add that column.

Subitem 0 or 1 for a single column?

Originally Posted by Jaken Veina

Subitem 0 or 1 for a single column?

zero

I find the Listview_XX macros helpful (ie Listview_InsertItem())

item is row,
subitem is column.
both are zero based.
If you delete rows (items) the remaining rows are re-numbered.

Set the listview to REPORT style
Add the columns
Listview_InsertItem only for a new item (create a new row with this entry in the first col)
ListView_SetItemText() for each other col [subitem] in the row (apart from the first col).

Excellent! All is well. Thanks a bunch.