Print Page - Listview control item problem

Title: Listview control item problem
Post by: halsten on November 19, 2008, 09:34:59 AM

I am trying to add items to my listview, but they always show up empty. Here's what am using:


static void InsertItem(HWND hwndParent, PCHAR pszAddress, PCHAR pszByteCode, PCHAR pszDisassembly, PCHAR pszComment) {
	static HWND			hWndListView;
	static LV_ITEM			lvI;
	
	
	ZeroMemory(&lvI, sizeof(lvI));

	hWndListView = GetDlgItem(hwndParent, IDC_DISASMLIST);

	lvI.mask	 = LVCF_TEXT | LVCF_WIDTH | LVCF_SUBITEM;

	lvI.iItem	 = 1;
	lvI.iSubItem = 0;
	lvI.pszText  = (LPWSTR)pszAddress;
	ListView_InsertItem(hWndListView, &lvI);

	g_iItem = ListView_GetItemCount(hWndListView);

	lvI.iSubItem = g_iItem;
	lvI.pszText  = (LPWSTR)pszByteCode;
	ListView_SetItem(hWndListView, &lvI);

	g_iItem++;

	lvI.iSubItem = g_iItem;
	lvI.pszText  = (LPWSTR)pszDisassembly;
	ListView_SetItem(hWndListView, &lvI);

	g_iItem++;

	lvI.iSubItem = g_iItem;
	lvI.pszText  = (LPWSTR)pszComment;
	ListView_SetItem(hWndListView, &lvI);
}

Am I doing something wrong? any ideas would be really helpful? Thanks in advance.

Regards,
halsten

Title: Re: Listview control item problem
Post by: TimoVJL on November 19, 2008, 01:44:36 PM

Maybe like this

Code Select


lvI.iItem = ListView_GetItemCount(hWndListView);
g_iItem = 0;

Title: Re: Listview control item problem
Post by: halsten on November 19, 2008, 02:49:49 PM

No it's not working. The problem is that the items are empty strings.

Title: Re: Listview control item problem
Post by: DMac on November 19, 2008, 06:03:28 PM

Take a look at the attached demo.

Perhaps this will help.

Regards,
DMac

Title: Re: Listview control item problem
Post by: halsten on November 19, 2008, 06:37:02 PM

Thanks DMac, I checked the src, and am pretty much doing the same. Any other comments on the code I have posted? No idea what's wrong with it. Thanks in advance.

Regards,
halsten

Title: Re: Listview control item problem
Post by: DMac on November 19, 2008, 07:13:50 PM

Try this:

Code Select

static void InsertItem(HWND hwndParent, PCHAR pszAddress, PCHAR pszByteCode, PCHAR pszDisassembly, PCHAR pszComment) {
	static HWND                                 hWndListView;
	static LV_ITEM                              lvI;
	static int                                      iSubitem;
	
	ZeroMemory(&lvI, sizeof(lvI));

	hWndListView = GetDlgItem(hwndParent, IDC_DISASMLIST);

             iSubItem = 0;//<-- subitem 0 == Column 1

	lvI.mask	= LVCF_TEXT;//<-- only adding text

	lvI.iItem	= ListView_GetItemCount(hWndListView); //<-- start with the next row
	lvI.iSubItem = iSubItem;
	lvI.pszText  = (LPWSTR)pszAddress;
	ListView_InsertItem(hWndListView, &lvI);

             iSubItem++

	lvI.iSubItem = iSubItem;
	lvI.pszText  = (LPWSTR)pszByteCode;
	ListView_SetItem(hWndListView, &lvI);

	iSubItem++;

	lvI.iSubItem = iSubItem;
	lvI.pszText  = (LPWSTR)pszDisassembly;
	ListView_SetItem(hWndListView, &lvI);

	iSubItem++;

	lvI.iSubItem = iSubItem;
	lvI.pszText  = (LPWSTR)pszComment;
	ListView_SetItem(hWndListView, &lvI);
}

Title: Re: Listview control item problem
Post by: halsten on November 19, 2008, 11:02:40 PM

Still no effect, the row is added with an empty string. I am going to upload what I have maybe there is something else am doing wrong. Sorry for the inconvenience.

Title: Re: Listview control item problem
Post by: DMac on November 20, 2008, 02:48:43 AM

ok fixed.

Main problem:

Code Select

	lvI.mask	= LVCF_TEXT; // <-- Should be LVIF_TEXT

Peles C compiler found some other type cast errors I patched them up to get the example to run.

Title: Re: Listview control item problem
Post by: halsten on November 20, 2008, 08:01:45 AM

Thanks a lot DMac. It worked perfectly! Much appreciated.

Pelles C forum

C language => Windows questions => Topic started by: halsten on November 19, 2008, 09:34:59 AM