search a list control

rahuljin

i have to list control in a mfc dialog application. first one is ipList. i want to search an item in the list.

int i = 0;
TCHAR ss[50] = {0};
ipAdd.GetAddress(m_M1, m_M2, m_M3, m_M4);
_stprintf_s(ss, _T("%d : %d : %d : %d"), m_M1, m_M2, m_M3, m_M4);

for(int j=0; j < ipList.GetItemCount(); j++)
{
if(ipList.GetItem(j) != ss)
i=0;
else
i = 1;
}

it gives the error ---

error C2664: 'CListCtrl::GetItem' : cannot convert parameter 1 from 'int' to 'LVITEMW *'

what i should do now ? btw thanks

carter2000

Hi, GetItem has the declaration like this:BOOL GetItem(LVITEM* pItem) const; So it can't accept a int type parameter. besides, it return a BOOL value; I think you must misunderstand the function.

Naveen

In addition to the above comment, you can use the FindItem() function of list control directly. No need to loop.

nave [OpenedFileFinder] [My Blog]

rahuljin

thanks for the reply. please tell me how to search an item in list control.

carter2000

Use FindItem() to get the index of the list control you want. int FindItem(LVFINDINFO* pFindInfo, int nStart = -1) const; ipAdd.GetAddress(m_M1, m_M2, m_M3, m_M4); LVFINDINFO temp; temp.flags = LVFI_PARTIAL|LVFI_STRING; _stprintf_s(temp.psz, _T("%d : %d : %d : %d"), m_M1, m_M2, m_M3, m_M4); //I'm not sure if this would work int i = ipList.FindItem(&temp);

rahuljin

this code is giving error ----

_stprintf_s(temp.psz, _T("%d : %d : %d : %d"), m_M1, m_M2, m_M3, m_M4);

error

error C2664: 'int swprintf_s(wchar_t *,size_t,const wchar_t *,...)' : cannot convert parameter 1 from 'LPCWSTR' to 'wchar_t *'

rahuljin

thanks for the reply.

carter2000

I'm sorry for that. You can try the code below. wchar_t ss[100]; _stprintf_s(ss, _T("%d : %d : %d : %d"), m_M1, m_M2, m_M3, m_M4); //I'm not sure if this would work temp.psz = ss; Hope it can run.

rahuljin

thanks, it is working now. also, in the second list control in application, there is check box in first column for ach item. please tell me how to get the items which are checked ?

carter2000

But I know you can add 'LVN_ITEMCHANGED' Message handling functions for the CListCtrl, when checkbox's state is changed, the function would be activated, and you can check if the checkbox is be selected in the Message handling functions.

rahuljin

thanks. i am facing a new problem. i am trying to save the items of list control which are checked to a text file. here is the code ---

TCHAR ff\[100\] = {0};
CFile srvc;
    srvc.Open(\_T("c:\\\\srvc.txt"), CFile::modeCreate|CFile::modeReadWrite);
for (int nItem = 0; nItem < srvcList.GetItemCount(); nItem++)
{
	if (srvcList.GetCheck(nItem))
	{
		
		srvcList.GetItemText(nItem, 0, (LPTSTR)ff, 98);
		wcscat\_s(ff, L"\\n");
		srvc.SeekToEnd();
		srvc.Write(ff, 100);
		ZeroMemory(ff, 100);
		
	}

}

the content of the file is not right ---

A e L o o k u p S v c
þþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþA p p H o s t S v c
þþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþA V P
þþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþB F E
þþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþB I T S
þþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþþ

there is extra space between each letter and the symble 'þ'. there is also no new line even with the use of '\n'.

modified on Saturday, July 18, 2009 11:05 PM

carter2000 · modified on Saturday, July 18, 2009 11:05 PM

Hi. I use " CString temp(ff); srvc.Write(ff, 2 * temp.GetLength() - 1); " instead of your "srvc.Write(ff, 100);", and it's works OK in my computer. Maybe you can try it, but it must not be a good solution. If it couldn't work, tell me and I would try to find another solution.

carter2000 · modified on Saturday, July 18, 2009 11:05 PM

srvc.Write(ff, 2 * lstrlen(ff) - 1); This can work in my computer too, maybe it's better than the last one I gave you.

rahuljin

now the content of the file is this ----

A p p M g m t A V P B F E

the content should be like this --- AppMgmt AVP BFE

rahuljin

same problem as other. there is a extra space between each letter and no new line.

carter2000

My OS is winows XP. And if I view the text by Notepad.exe, it's the same as you. But if I use anothor software to view the text, it just be OK.

carter2000

wcscat_s(ff, L"\n"); Em, try to replace the code by 1. wcscat_s(ff, L"\r\n"); 2. wcscat_s(ff, L"\r"); 3. wcscat_s(ff, L"\n\r");

rahuljin

i do some changes ----

for (int nItem = 0; nItem < srvcList.GetItemCount(); nItem++)
{
if (srvcList.GetCheck(nItem))
{
srvcList.GetItemText(nItem, 0, (LPTSTR)ff, 98);
//wcscat_s(ff, L"\r\n");
srvc.SeekToEnd();
int i = 2 * lstrlen(ff) - 2;
int j = 0;
while(i)
{
srvc.Write(&ff[j], 1);
i--;
j++;
}
}
}

the content is ---

AVP BFE BITS

if i use wcscat_s(ff, L"\r\n"), then

AVP
þþþBFE
þþþBITS
þþþþ

this text file will be used by other program, therefore cant compromise with it.

carter2000

It looks inefficient :)

rahuljin

still there is a problem, there is no new line. i want the content of the text file like this ----- AVP BFE BITS