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Error on listbox with more lines in each item

Hi.
I picked the answer of ListBox with more lines in each item. I tried it and it worked when I use addString with a text directly, but when I put text in a varible like CString or others, I only see unknown or no characters in the items. I am sending some code...

In the CtrlTest example of VC++ 1.52 (custlist.cpp)I did the following:
1). for the class CColorListBox, I wrote a function
void AddTextItem (LPCSTR text)
{ AddString(text);
}
2). I change the item height to 80
#define TEXT_ITEM_HEIGHT 80
void CColorListBox::MeasureItem(LPMEASUREITEMSTRUCT lpMIS)
{      // all items are of fixed size
      // must use LBS_OWNERDRAWVARIABLE for this to work
      lpMIS->itemHeight = TEXT_ITEM_HEIGHT;
}
3).I change the first "if" statement of this function using a Drawtext()
void CColorListBox::DrawItem(LPDRAWITEMSTRUCT lpDIS)
{
CDC* pDC = CDC::FromHandle(lpDIS->hDC);
COLORREF cr = (COLORREF)pDC->GetBkColor();
LPCSTR szText=(LPCSTR)lpDIS->itemData;

if (lpDIS->itemAction & ODA_DRAWENTIRE)
{
pDC->DrawText(szText,-1,&lpDIS->rcItem,DT_LEFT |
DT_EXTERNALLEADING | DT_NOCLIP | DT_NOPREFIX |
DT_WORDBREAK);
}
....
.the same code.
....
}

4).On the Dialog part(OnInitDialog) I insert my strings

//this works

AddTextItem("Name:jespadas\nJob:Engineer\nAge:28")

//this does´t work
char mistr[300]="Name:jespadas\nJob:Engineer\nAge:28"
m_colors.AddTextItem(mistr);

Acording to this code what it is going on?
Why I am loosing the string value?

Thanks, I will appreciate any help.

Dex_Man

Two things I'm thinkin.

1) For List Boxes in VC 5.0, I send the box a message, like this:

SendDlgItemMessage(IDC_HOSTNAME, CB_ADDSTRING, (WPARAM)0, (LPARAM)host);

Where IDC_HOSTNAME is the name of the ListBox,
CB_ADDSTRING tells it to add a string,
host is the parameter (char, not CString, but CString might work, not sure), but this does add a dtring to the next line in the box. Do a search for "CB_" to find all the things you can send to a box though SendDlg...

2) The other thing, if your \n's. I had trouble with this come to think of it, in an edit box. Try \r\n or \n\r instead of just \n. Worth a try.

You could also do some error checking (assuming you haven't already), output the value of mistr to the screen in a AfxMessageBox (or the debugger could help, I'm not familiar with it...) and make sure it has in it the value you think it does.

Hope something here helps.

-Dex Man

jespadas

ASKER

What I have is a OwnerDraw ListBox that I did with different behaivor. this is a copy of the question I picked from "jeeg" user.

Hi experts!
I would like to do a ListBox with several lines in each item, like this:
--------------------------
id:nnnn |
name: xxxxxxxxxxx > item 1
hobie: yyyyyyyyy |
--------------------------
id:nnnn |
name: xxxxxxxxxxx > item 2
hobie: yyyyyyyyy |
--------------------------

I tried using an AddString with "\n" and "\r" between strings, but it does not work. I have reviewed some multicolumn samples
but I need a diferent kind of viewing my data.

In addtion I new in MFC and need to do it on VC++ 1.52.

Somebody answer to him that the CtrlTest sample on VC 1.5x had something like that, but he needed use DrawText rather then paint a color...

ASKER CERTIFIED SOLUTION

prasanth

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jespadas

ASKER

I am sorry if I did not accept before.
I just was evaluating and doing some code.

very good answer!
Thank you,