ListView InsertItem

[hajer]

Hi ALL,

I'm writing a code inserting an item in a listview control,

TCHAR tstr[255];
_tcscpy(tstr,_T("something"));
                
CListCtrl& m_itemsCtl = m_listview.GetListCtrl ();
LV_ITEM lv_item;
lv_item.mask = LVIF_TEXT|LVIF_PARAM;
lv_item.iSubItem = 0;
lv_item.iItem = 0;
lv_item.state = ~LVIS_SELECTED|~LVIS_FOCUSED;
lv_item.stateMask = LVIS_SELECTED|LVIS_FOCUSED;
lv_item.pszText = tstr; 
int iItem = m_itemsCtl.InsertItem(&lv_item);

The code above inserts a listitem at position 0 (lv_item.iItem = 0), but when i execute this code the InsertItem returns different values and doesn't insert the listiem in the first position.
How to resolve this problem?
I need help.
Thanks in advance.

[gstercken]

The code above inserts a listitem at position 0 (lv_item.iItem = 0), but when i execute this code the InsertItem returns different values and doesn't insert the listiem in the first position.
How to resolve this problem?

Does your list control have the LVS_SORTASCENDING or LVS_SORTDESCENDING style set?

[VictorN]

Hi ALL,

I'm writing a code inserting an item in a listview control,
.......................

The code above inserts a listitem at position 0 (lv_item.iItem = 0), but when i execute this code the InsertItem returns different values and doesn't insert the listiem in the first position.
How to resolve this problem?
I need help.
1. Thanks in advance.

What do you mean by "when i execute this code "?
2. According to MSDN ( CListCtrl::InsertItem )

........
Return Value

The index of the new item if successful or -1 otherwise.

If you'd call InsertItem more than once - it could return you any (also not zero) values depending on the sort style of your list control

[hajer]

Thank you,

The style of my listview control is :
WS_CHILD | WS_VISIBLE | WS_BORDER | LVS_REPORT | LVS_EX_FULLROWSELECT | LVS_EX_HEADERDRAGDROP;

I don't have the LVS_SORTASCENDING or LVS_SORTDESCENDING style set.

Hajer.

[hajer]

I mean by "when i execute this code" , when i execute my whole code, in which i have my listView.

Hajer.

[cilu]

I'm nor sure about this, but since you set the LVIF_PARAM mask

lv_item.mask = LVIF_TEXT|LVIF_PARAM;

the lParam member is valid or must be filled in. So it takes the trash data from it and use it and affect the insertion. But this is just a hunch.

[Alin]

try this:

	TCHAR tstr[255];
	_tcscpy(tstr,_T("something"));
	LV_ITEM lv_item;
	lv_item.mask = LVIF_TEXT|LVIF_PARAM;
	int i  = 0;                
	lv_item.iItem = i;	
	lv_item.iSubItem = 0;
	lv_item.state = ~LVIS_SELECTED|~LVIS_FOCUSED;
	lv_item.stateMask = LVIS_SELECTED|LVIS_FOCUSED;
	lv_item.pszText = tstr; 
	
	for(;i < 5; i++)
		int iItem = m_list.InsertItem(&lv_item);

[hajer]

Hi ALL,

When i tried to check if the LVS_SORTDESCENDING or LVS_SORTASCENDING are set, i wrote the following code :

	
style = WS_CHILD | WS_VISIBLE | WS_BORDER | LVS_REPORT | LVS_EX_FULLROWSELECT | LVS_EX_HEADERDRAGDROP;
if (style & LVS_SORTDESCENDING)
      AfxMessageBox("LVS_SORTDESCENDING ");

if (style & LVS_SORTASCENDING )
      AfxMessageBox("LVS_SORTASCENDING ");

When i launch the program, the two box messages appeared
How may i resolve this?
Hajer.

[hajer]

I don't understand the behaviour, but il made some modifications and when i set the LVS_EX_FULLROWSELECT style or the LVS_EX_HEADERDRAGDROP,
The LVS_SORTDESCENDING style is set automatically.


The problem i encountred now is how to add the LVS_EX_FULLROWSELECT style without the LVS_SORTDESCENDING style.

Hajer.

[gstercken]

I don't understand the behaviour, but il made some modifications and when i set the LVS_EX_FULLROWSELECT style or the LVS_EX_HEADERDRAGDROP,
The LVS_SORTDESCENDING style is set automatically.

The problem i encountred now is how to add the LVS_EX_FULLROWSELECT style without the LVS_SORTDESCENDING style.

Note that LVS_EX_FULLROWSELECT and LVS_EX_HEADERDRAGDROP are extended styles, you can't combine them with your normal window styles. Use SetExtendedStyle() for them.

[hajer]

Thank you gstercken,
I used SetExtendedStyle (LVS_EX_FULLROWSELECT | LVS_EX_HEADERDRAGDROP);

It works allright.
Hajer.

[atif_ilm]

Hi I also similar kind of probelm , In Report style fot a list ctrl .

When I insert items , every new item enters at the top , so if I enter 1,2,3,4 in list control one by one it will look like

4
3
2
1

But I want that every new item should be entered at bottom and i also dont want sorting , sequence in my case is very important.

So how to insert every new item at the last of list ctrl. to have such kind of result
1
2
3
4
where 1 entered first , 2 secondly and so on.

[cilu]

Well, first make sure that you're list is not sorted. Second, can do something like this:

CListCtrl &list = GetListCtrl();
int n = list.GetItemCount();
n = list.InsertItem(n,"last item");
list.SetItemText(n,...);

[atif_ilm]

thanx it really worked.