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Read the text from the file into a CString (or char array, or std::string) -- if you can't work that out, then resign your job, or go ask your tutor...
Verify it's the right length!
If its in a CString, then you can extract bits of it using...
CString::Mid ().
So you could do...
int dt_end_pic = atol (stringWhole.Mid (1+6+8, 8));
etc.
You can do similar with std::string, and you can do it the hard with with char arrays too.
I've had to save data for excel to process before. I know there are APIs out there which tell you how to connect to Excels DOM model, etc.
I've cheated, and written out the data in CSV format, and let excel do the heavy lifting itself.
sprintf (buf, "%i,%i,%i,%i\n", ty_record, id_participant, dt_start, dt_end);
then output the string to a new file.
I hope that helped with the hard bits!
Iain.
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mrr2 wrote: or at least somebody pls guide me to figure out ways to create the program.
Create a class that represents one of the lines:
class Line
{
public:
Line() {}
~Line() {}
private:
std::string TY_RECORD;
std::string ID_PARTICIPANT;
std::string DT_START;
std::string DT_END;
}; Then use the std::copy() function to read each line of the file into a vector of Line objects.
"A good athlete is the result of a good and worthy opponent." - David Crow
"To have a respect for ourselves guides our morals; to have deference for others governs our manners." - Laurence Sterne
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Hi All,
I have created a dialog for wizard which hosts another dialogs into itself.
Everything works fine, but it is necessary to call DoDataExchange() method of
child dialogs from within parent dialogs DoDataExchange() method.
Can anyone tell me how can I do this?
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and why so? isn't it possible for you to call functions of Child Dialog from Parent Dialog. you have a wizard implemented. How do you implement it? Using CPropertySheet?
Somethings seem HARD to do, until we know how to do them.
_AnShUmAn_
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OK, let me make it clear.
1. I have a child dialogs whose dialog style is set to DS_CONTROL .
2. In parent dialog's InitDialog() , I have created variables for child dialogs.
The problem is that when (in normal conditions) DoDataExchange(CDataExchange* pDX) is called, the pDX parameter is passed to it. And I think MFC does it for us.
But from within
<br />
void CDriveNewWizard::DoDataExchange(CDataExchange* pDX)<br />
{<br />
CDialog::DoDataExchange(pDX);<br />
<br />
DDX_Control(pDX, IDC_cmdBack, m_cmdBack);<br />
DDX_Control(pDX, IDC_cmdNext, m_cmdNext);<br />
}<br />
what should I pass to child dialog's DoDataExchange() method?
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Your query doesn't sound complete yet. Can you explain what exactly to you want to do, If you wish you can ignore the technical details for DoDataExchange for now for a better explanation of your problem.
If you want to call functions of child dialog from parent, since you have a variable(that you create in OnInitDialog() and I don't know why) when you can create it as a member variable of your class and access functions of child dialogs.
Somethings seem HARD to do, until we know how to do them.
_AnShUmAn_
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OK.
I have created wizard according to Creating embedded dialogs in MFC article.
The author states in the article before the "Points of Interest" as follows:
"One final point to note that even though it is not in the code, from within CEmbeddedDialogDlg::DoDataExchange you should call both the m_dlg1 and m_dlg2 DoDataExchange methods."
When i want to call DoDataExchane() method of child dialog, i must pass a data
exchange variable to it, and it is not worth to pass variable of parent dialog
to child dialog.
So what should I pass to it?
May be this had made my point clear...
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Rather than calling the childs DoDataExchange method directly, can you not do:
void CParentDlg::DoDataExchange (CDataExchange *pDX)
{
...
m_Child1.UpdateData (pDX->m_bSaveAndValidate);
m_Child2.UpdateData (pDX->m_bSaveAndValidate);
...
}
And let MFC do the heavy lifting of setting up and calling the DoDataExchage method?
Iain.
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Oh, thanks a lot...
I guess i am new to MFC, and don't know much in's and out's...
i'm trying to learn...
Thanks a lot....
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In addition to what Ian already stated:
From MSDN about DoDataExchange: Never call this function directly. It is called by the UpdateData member function. Call UpdateData to initialize a dialog box’s controls or retrieve data from a dialog box.
Thus, you don't call this function at all.
Depending on your design and how you use your dialogs, perhaps you shouldn't even call UpdateData either. See here[^] for an alternative.
a_b_pathak wrote:
I guess i am new to MFC, and don't know much in's and out's...
i'm trying to learn...
Then I suggest you take a look at Joe Newcomer's excellent site where he's gathered quite a few very useful tips: http://www.flounder.com/mvp_tips.htm[^].
"It's supposed to be hard, otherwise anybody could do it!" - selfquote "High speed never compensates for wrong direction!" - unknown
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Hello,
can someone help me to remove a item from a vector?
I try to use vector::erase(vectoritem); but i resive an error!
Thanks
termal
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This is not much to go on. What error message? What data types are you using for the short sample code shown?
Here is an example
<br />
std::vector<int> intvec;
<br />
intvec.push_back(23);<br />
intvec.push_back(24);<br />
<br />
intvec.erase(intvec.begin());<br />
Hope that helps.
I Dream of Absolute Zero
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termal wrote: but i resive an error!
Which error ?
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Hi all:
I have been given a quiz:
If I want to make a local function visible from outside of the file in which it is declared. I should make this function ________.
Can anyone help?
Thank you
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C_Zealot wrote: If I want to make a local function visible from outside of the file in which it is declared. I should make this function ________.
Not static I guess. But I'm not sure what you mean by a local function.
codito ergo sum
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Public ?
I Dream of Absolute Zero
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You don't have to do anything at all in the file where the function is written.
<br />
void AFunc(int& i)<br />
{<br />
}<br />
<br />
<br />
extern void AFunc(int i);<br />
<br />
int BFunc(void)<br />
{<br />
int i = 6;<br />
AFunc(i);<br />
return i;<br />
}<br />
It's the C way of doing things but it works just fine in C++. Often the prototype is actually in a header file so you can pull in lots of functions with one #include
Nothing is exactly what it seems but everything with seems can be unpicked.
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Matthew Faithfull wrote: You don't have to do anything at all in the file where the function is written.
But you can't make the function static, I believe
Matthew Faithfull wrote: //somecode.cpp
static void AFunc(int& i)
{
//Do Stuff
}
Because that would hide the function and bind it to the local scope, being the file where its defined.
-- modified at 4:11 Tuesday 19th June, 2007
codito ergo sum
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Yes, as far I know you are correct.
I would ask please don't alter the text of quotes. In this case with the highlight and as it's code I don't mind but if it was ordinary prose you were quoting I would be quite upset.
Nothing is exactly what it seems but everything with seems can be unpicked.
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Ok will take the advice into account.
Didn't though it over that I was changing someones quote.
Guess I was in a hurry.
codito ergo sum
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Thank you.
I think this is what I need.
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Fill in the blank? One word?
"global"
"Posting a VB.NET question in the C++ forum will end in tears." Chris Maunder
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When I try to builder a aplication on VC++
I see error below:
"Microsoft Visual Studio C Runtime Library has detected a fatal error in devenv.exe"
How to fix ?
tuongnd
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Thanks.
I found error.
I reinstall visual studio 8.
After then build seccessfull
tuongnd
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HELLO to every one..
my question is how i can switch from one menu window to another?
help me plz ..
vikram..
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