CString return
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i m using following function in my project but gtng an exception error: CString CMyProj::OnTextList() { int index; CString _case; index = m_caselist.GetCurSel(); m_caselist.GetText(index,_case); return _case; } can any body tell me why i m getting error in this code????????? NT
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may check if the index is >= 0 If no item is selected the index has a value of -1. Check LastError code using GetLastError() Otherwise please post the error message / exception.
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GetText is checking its input data. What are you inputting to it? Use the debugger to set a breakpoint and check the value.
Though I speak with the tongues of men and of angels, and have not money, I am become as a sounding brass, or a tinkling cymbal.
George Orwell, "Keep the Aspidistra Flying", Opening words -
GetText is checking its input data. What are you inputting to it? Use the debugger to set a breakpoint and check the value.
Though I speak with the tongues of men and of angels, and have not money, I am become as a sounding brass, or a tinkling cymbal.
George Orwell, "Keep the Aspidistra Flying", Opening words -
Sure. But you are calling
GetText()withindexand_case. AndGetTextis checking its paramteres... Did you ever check the value ofindex?
Though I speak with the tongues of men and of angels, and have not money, I am become as a sounding brass, or a tinkling cymbal.
George Orwell, "Keep the Aspidistra Flying", Opening words -
Sure. But you are calling
GetText()withindexand_case. AndGetTextis checking its paramteres... Did you ever check the value ofindex?
Though I speak with the tongues of men and of angels, and have not money, I am become as a sounding brass, or a tinkling cymbal.
George Orwell, "Keep the Aspidistra Flying", Opening words -
But i think the function of GetText() is that watever text is at index(watevr value) will be stored in _case. just tell the way i m returning the value of _case is correct or not???? NT
tyagineha wrote:
But i think the function of GetText() is that watever text is at index(watevr value) will be stored in _case.
You could have read MSDN about GetText(). The index is zerobased. Hence my repeated question (which you seem to refuse to answer): What are you calling
GetText()with? Are you calling it with invalid indices (like, perchance, -1)?
Though I speak with the tongues of men and of angels, and have not money, I am become as a sounding brass, or a tinkling cymbal.
George Orwell, "Keep the Aspidistra Flying", Opening words -
tyagineha wrote:
But i think the function of GetText() is that watever text is at index(watevr value) will be stored in _case.
You could have read MSDN about GetText(). The index is zerobased. Hence my repeated question (which you seem to refuse to answer): What are you calling
GetText()with? Are you calling it with invalid indices (like, perchance, -1)?
Though I speak with the tongues of men and of angels, and have not money, I am become as a sounding brass, or a tinkling cymbal.
George Orwell, "Keep the Aspidistra Flying", Opening words -
And your Listbox does have 5 entries? Or does it have 4, and the last one is selected? Then you have falling in the ole off-by-one trap. ;P Indices are counting from 0: the last element of the Listbox has the index (SizeOfListbox -1)
Though I speak with the tongues of men and of angels, and have not money, I am become as a sounding brass, or a tinkling cymbal.
George Orwell, "Keep the Aspidistra Flying", Opening words -
And your Listbox does have 5 entries? Or does it have 4, and the last one is selected? Then you have falling in the ole off-by-one trap. ;P Indices are counting from 0: the last element of the Listbox has the index (SizeOfListbox -1)
Though I speak with the tongues of men and of angels, and have not money, I am become as a sounding brass, or a tinkling cymbal.
George Orwell, "Keep the Aspidistra Flying", Opening wordsrite now listbox has only one entry. this function i m defining in one class and calling in another class... the problem which u r saying.. that problem i m nt gntng when i m in same class but when calling this function fron another class then error is cuming. tell me watshld i do now?? Nt
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rite now listbox has only one entry. this function i m defining in one class and calling in another class... the problem which u r saying.. that problem i m nt gntng when i m in same class but when calling this function fron another class then error is cuming. tell me watshld i do now?? Nt
tyagineha wrote:
tell me watshld i do now??
Write proper English. I am not a native speaker and may get your abbreviations wrong. Also, this stuff is complicated enough.
Though I speak with the tongues of men and of angels, and have not money, I am become as a sounding brass, or a tinkling cymbal.
George Orwell, "Keep the Aspidistra Flying", Opening words -
tyagineha wrote:
tell me watshld i do now??
Write proper English. I am not a native speaker and may get your abbreviations wrong. Also, this stuff is complicated enough.
Though I speak with the tongues of men and of angels, and have not money, I am become as a sounding brass, or a tinkling cymbal.
George Orwell, "Keep the Aspidistra Flying", Opening words -
Set a breakpoint on return _case; and see if it looks OK in the debugger. If it does, single step into your other class and look if it is still OK.
Though I speak with the tongues of men and of angels, and have not money, I am become as a sounding brass, or a tinkling cymbal.
George Orwell, "Keep the Aspidistra Flying", Opening words -
rite now listbox has only one entry. this function i m defining in one class and calling in another class... the problem which u r saying.. that problem i m nt gntng when i m in same class but when calling this function fron another class then error is cuming. tell me watshld i do now?? Nt
tyagineha wrote:
rite now listbox has only one entry.
But you are calling for the 4th one? Could this work?
Though I speak with the tongues of men and of angels, and have not money, I am become as a sounding brass, or a tinkling cymbal.
George Orwell, "Keep the Aspidistra Flying", Opening words -
Set a breakpoint on return _case; and see if it looks OK in the debugger. If it does, single step into your other class and look if it is still OK.
Though I speak with the tongues of men and of angels, and have not money, I am become as a sounding brass, or a tinkling cymbal.
George Orwell, "Keep the Aspidistra Flying", Opening words -
its not ok in debugger... its giving debug error. i just want to return the value which is in _case. i want to use this value furthur. NT
tyagineha wrote:
i just want to return the value which is in _case.
So the CString _case is ok at the end of your function (as listed above). And it is not OK in the function calling that?
Though I speak with the tongues of men and of angels, and have not money, I am become as a sounding brass, or a tinkling cymbal.
George Orwell, "Keep the Aspidistra Flying", Opening words -
tyagineha wrote:
rite now listbox has only one entry.
But you are calling for the 4th one? Could this work?
Though I speak with the tongues of men and of angels, and have not money, I am become as a sounding brass, or a tinkling cymbal.
George Orwell, "Keep the Aspidistra Flying", Opening words -
You said: "The index is 4" and "rite now listbox has only one entry." Are you calling CListBox::GetText( 4, _case) in a CListBox that has only 1 entry?
Though I speak with the tongues of men and of angels, and have not money, I am become as a sounding brass, or a tinkling cymbal.
George Orwell, "Keep the Aspidistra Flying", Opening words -
Okey let me explain in detail. void CMyProj::OnSelchangeList() { CClientdemoDlg dlgobj; dlgobj.OnClientChangeListbox(); } void CClientdemoDlg::OnClientChangeListbox() { CMyProj objnew; CString _temp; _temp=objnew.OnTextList(); } CString CMyProj::OnTextList() { int index; CString _case; index = m_caselist.GetCurSel(); m_caselist.GetText(index,_case); return _case; } notice the classes....... NT -- modified at 5:54 Thursday 16th August, 2007 NT
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You said: "The index is 4" and "rite now listbox has only one entry." Are you calling CListBox::GetText( 4, _case) in a CListBox that has only 1 entry?
Though I speak with the tongues of men and of angels, and have not money, I am become as a sounding brass, or a tinkling cymbal.
George Orwell, "Keep the Aspidistra Flying", Opening words