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MFC- Tab Control - Problem implementing dynamic tabs.

Posted on 2003-02-22
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Last Modified: 2013-11-20
I want to be able to add tabs dyanmicly to the tab control during program operation, I will not know witch tabs or in what order they will need to be added.
I tried solving this problem by assigning an index to each tab so I could add and remove them by useing there index however If I have tabs 1,2 and 3 on a form and 1 is removed then 2 becomes 1 and 3 becomes 2. This messess things up.
To solve the probelm I want to identify the tabs by there names. So I added a "add tab by name" and "remove tab by name" meathod.

[code]
int CappDlg::DeleateTabByName (char name[])
{
     TCITEM CurTab;
     CurTab.mask = TCIF_TEXT;

     int num = SubMen.GetItemCount();
     num++;

     int cout;
     for ( cout = 0 ; cout <= num ; cout++)
     {
          BOOL fail = SubMen.GetItem ( cout , &CurTab );
          if ( fail = FALSE )
          {
               AfxMessageBox ("ERROR");
          }
          if ( CurTab.pszText == name)
          {
               SubMen.DeleteItem ( cout );
               return 1; // 1 == succses
          }
     }

     return 0; // 0 == failure
     return -1; // -1 means not implemented    

}

int CappDlg::addTabByName (char name[])
{
     TC_ITEM TabCtrlItem;
     TabCtrlItem.mask = TCIF_TEXT;
     TabCtrlItem.pszText = name;
     SubMen.InsertItem ( 1 , &TabCtrlItem );

     return 1; // 1 == succsess
}
[code/]

The add tab by name function works correcly but the remove tab by name tab does not. Why does the remove tab by name function fail to work?
I tried debuging and I find that CurTab's sting value is bad, it says that the pointer is invalied. I don't see how this could be however becuse the GetItem meathod returns true.
I have no idea why thid does not work but it might have something to do with the invalid string in CurTab.
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Question by:Arrummzen
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3 Comments
 
LVL 1

Author Comment

by:Arrummzen
ID: 8001515
oopps, I didnt meen to post to, Is there anyway I can get this one deleated? If not just dont relpy to this one.
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Accepted Solution

by:
aparyani earned 1200 total points
ID: 8030544
Do not try to store CWnd objects globally.

Try getting the tab control locally such as

CTabCtrl* pTabCtrl;
pTabCtrl;= (CTabCtrl*) GetDlgItem(IDC_EDIT1);

Then use your code using pTabCtrl;
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