Ccombobox Addstring Error
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Ccombobox Example
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Ccombobox Mfc
practices Servers and Enterprise Development Speech Technologies Web Development Windows Desktop App Development TOC Collapse the table of content Expand the table of content This documentation is archived and is not being maintained. Switch Visual Studio The topic you requested is included in another documentation set. For convenience, it's displayed below. Choose Switch to see ccombobox setcursel the topic in its original location. This documentation is archived and is not being maintained. CComboBox::AddString Other Versions Visual Studio 2013 Visual Studio 2012 Visual Studio 2010 Visual Studio 2008 Visual Studio 2005 Visual Studio .NET 2003 Adds a string to the list box of a combo box.Syntax Copy int AddString( LPCTSTR lpszString ); ParameterslpszStringPoints to the null-terminated string that is to be added.Return ValueIf the return value is greater than or equal to 0, it is the zero-based index to the string in the list box. The return value is CB_ERR if an error occurs; the return value is CB_ERRSPACE if insufficient space is available to store the new string. RemarksIf the list box was not created with the CBS_SORT style, the string is added to the end of the list. Otherwise, the string is inserted into the list, and the list is sorted.Note This function is not supported by the Windows ComboBoxEx control. For more information on this control, see ComboBoxEx Controls
Forum Visual C++ & C++ Programming Visual C++ Programming CComboBox problem with AddString ? If this is your first visit, be sure to check out the FAQ by clicking the link above. You may have to
Ccombobox Addstring Example
register or Login before you can post: click the register link above to proceed. To mfc ccombobox insertstring start viewing messages, select the forum that you want to visit from the selection below. Results 1 to 9 of 9 Thread: CComboBox add string c++ problem with AddString ? Tweet Thread Tools Show Printable Version Email this Page… Subscribe to this Thread… Display Linear Mode Switch to Hybrid Mode Switch to Threaded Mode June 20th, 2007,08:39 PM #1 sstainba View Profile View Forum https://msdn.microsoft.com/en-us/library/x9y44b47.aspx Posts Member Join Date Feb 2005 Posts 98 CComboBox problem with AddString ? I have a dialog with two combo box controls in it. I have associated a control variable with each but I can't add a string to them. Can anyone help? I just keep getting an access violation when I try. I've also tried the InsertString() function and even tried to initialize it with way more memory than needed... ... CComboBox myBox; myBox.AddString( _T( "Add http://forums.codeguru.com/showthread.php?426685-CComboBox-problem-with-AddString this") ); ... Reply With Quote June 20th, 2007,09:48 PM #2 sstainba View Profile View Forum Posts Member Join Date Feb 2005 Posts 98 Re: CComboBox problem with AddString ? Hmmm... It works as long as I cast it to a CString... what's up with that? This works: ??? ... myBox.AddString( CString("HI!")); Reply With Quote June 21st, 2007,01:02 AM #3 cilu View Profile View Forum Posts Visit Homepage Elite Member Power Poster Join Date Oct 2002 Location Timisoara, Romania Posts 14,360 Re: CComboBox problem with AddString ? What access violation. I hope you don't call AddString before the control is created. Please read this FAQ. Marius Bancila Home Page My CodeGuru articles I do not offer technical support via PM or e-mail. Please use vbBulletin codes. Reply With Quote June 21st, 2007,06:55 AM #4 sstainba View Profile View Forum Posts Member Join Date Feb 2005 Posts 98 Re: CComboBox problem with AddString ? No... if I had done that, it wouldn't work at all. It does work, as long as I pass it a CString. But the function prototype says it needs a LPCTSTR Reply With Quote June 21st, 2007,10:00 AM #5 VictorN View Profile View Forum Posts Super Moderator Power Poster Join Date Jan 2003 Location Wallisellen (ZH), Switzerland Posts 18,663 Re: CComboBox problem with AddString ? Which VS are you using? Could you p
everyone, I am going to fill an empty CComboxBox at run-time with elements. The problem is that calling CComboBox::AddString always returns an error. Do I have to preset http://www.verycomputer.com/418_933bc75797d44d47_1.htm specific properties of the combobox with the resource (dialog) editor. I placed the http://osdir.com/ml/programming.msvc/2005-02/msg00050.html call inside of XXXXXDlg::OnInitDialog. Is is the wrong place? Thnx much for ya help. cu, Thomas Top Adding elements to CComboBox at run-time - AddString does not work... :((( by Chris Marriot » Wed, 03 Mar 1999 04:00:00 Quote:>Hi everyone, >I am going to fill an empty CComboxBox at run-time with ccombobox addstring elements. The >problem is that calling CComboBox::AddString always returns an error. >Do I have to preset specific properties of the combobox with the >resource (dialog) editor. I placed the call inside of >XXXXXDlg::OnInitDialog. Is is the wrong place? Thnx much for ya help. No; "OnInitDialog" is the correct place. Post your code here so we can see what you're doing wrong. Chris ----------------------------------------------------------------------- Visit our web site ccombobox addstring error at http://www.skymap.com Astronomy software written by astronomers, for astronomers Top Adding elements to CComboBox at run-time - AddString does not work... :((( by Katy Mulvey [MV » Wed, 03 Mar 1999 04:00:00 >I am going to fill an empty CComboxBox at run-time with elements. The >problem is that calling CComboBox::AddString always returns an error. Which error? I assume you mean that it's returning CB_ERR or CB_ERRSPACE. Which one? And what does your call look like? Katy -- Katy Mulvey Please post support questions - I won't answer emailed ones. Software Development Engineer ORMEC Systems http://www.ormec.com MVP/VC++ What's an MVP? See
I'm confused. But what > happens now is that there is a CDialog that contains a CComboBox. > In the 'OnInitDialog' function of the dialog, the combo box is > populated using the CComboBox::AddString() function. However, > the combo box isn't a window yet, so it's failing with an > assertion in the AddString function for ::IsWindow(m_hWnd). > > When should AddString() be called, if it can't be called during > OnInitDialog()? If you are trying to refer to the combo box via a mapped CCombobox variable, be sure to not try using it until after CDialog::OnInitDialog() (i.e., the base class call) is called, since that is where variable / control mappings are hooked together. Trying to call it prior to that will cause the above error. -- Jason Teagle jason-54H+pym0vsC9FHfhHBbuYA@xxxxxxxxxxxxxxxx Thread at a glance: Previous Message by Date: CComboBox AddString VC++ 6.0, Win2K For some reason a problem is showing up in a dialog box that didn't seem to be a problem before, so I'm confused. But what happens now is that there is a CDialog that contains a CComboBox. In the 'OnInitDialog' function of the dialog, the combo box is populated using the CComboBox::AddString() function. However, the combo box isn't a window yet, so it's failing with an assertion in the AddString function for ::IsWindow(m_hWnd). When should AddString() be called, if it can't be called during OnInitDialog()? Jean Palmer Northrop Grumman > * jean.palmer-itBhTGHPdi0@xxxxxxxxxxxxxxxx > * (410-993-2627) > > Next Message by Date: Re: CComboBox AddString Jason Teagle wrote: When should AddString() be called, if it can't be called during OnInitDialog()? If you are trying to refer to the combo box via a mapped CCombobox variable, be sure to not try using it until after CDialog::OnInitDialog() (i.e., the base class call) is called, since that is where variable / control mappings are hooked together. Trying to call it prior to that will cause the above error. (Note: I'm assuming MFC here) Maybe I'm getting you wrong here, but isn't it enough to call UpdateData() somewhere at in the beginning of OnInitDialog()? cheers, roel Previous Message by Thread: CComboBox AddString VC++ 6.0, Win2K For some reason a problem is showing up in a dialog box that didn't seem to be a problem before, so I'm confused. But what happens now is that there is a CDialog that contains a CComboBox. In the 'OnInitDialog' function of the dialog, the combo box is populated using the CComboBox::AddString() function. However, the combo box isn't a window yet, so it's failing with an assertion in the AddString function