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Validation and regular expressions were made for each other...
One
Two
 Pssst. You see that little light on your monitor? That's actually a government installed spy camera. Smile and wave to big brother!
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void DDV_ValidateResult(CDataExchange* pDX,CString& rstrResult)
{
if(pDX->m_bSaveAndValidate)
{
if (rstrResult.IsEmpty())
return;
for(int index=0; index < rstrResult.GetLength() ; index ++)
{
int nAsciiValue=rstrResult.GetAt(index);
if((nAsciiValue>=33 && nAsciiValue<=47) || (nAsciiValue>=58 && nAsciiValue<=64)
||(nAsciiValue>=91 && nAsciiValue<=96)|| (nAsciiValue>=123 && nAsciiValue<=126))
{
if(nAsciiValue!=46)//here 46 is .
{
AfxMessageBox("Please enter a valid value.");
pDX->Fail();
break;
}
}
}
}
}
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Hi everyone,
I have a CDaoDatabase connection, I open a CDaoRecordset with this.
The problem is: I have more of 30000 records stored in tables. How to get portion of this data.?
for example:
query1 : first 1000 records
query2 : next 1000 records (1001 to 2000)
query# :...
I'm using the RDBMS MSDE2000.
The statement "select TOP ..." only retrieve the first records.
Thanks in advance.
Ivan Cachicatari
www.latindevelopers.com
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here's one way:
1. create a temp table with all the fields in your recordset and an identity int column.
2. put all the results from your query into that table (INSERT INTO...)
3. SELECT from that temp table WHERE ID BETWEEN 1001 AND 2000
or, if your original recordset has an identity column, you can just use that.
Cleek | Image Toolkits | Thumbnail maker
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Thanks for you post.
This option downs the performance of the database server. I have a Pentium III 550Mhz on Win98 and MSDE2000 as data server. You Known another method to do this.
Ivan Cachicatari
www.latindevelopers.com
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Ivan Cachicatari wrote:
You Known another method to do this
sorry, i don't.
i don't know of any Microsoft SQL iimplementations that allow it, but
with MySQL you can use "SELECT * FROM whatever LIMIT low,high".
with SQLServer and Access, i've always had to use the temp table+identitiy field trick
Cleek | Image Toolkits | Thumbnail maker
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i had made the win32 static library in vc6 and code is given both decleration and implemention are
class CKeyLogger : public CObject
{
public:
CKeyLogger();
virtual ~CKeyLogger();
void KeyLoggerMain();
CKeyLogger::CKeyLogger()
{
}
CKeyLogger::~CKeyLogger()
{
}
void CKeyLogger::KeyLoggerMain()
{
MessageBox("library is called");
}
i made the new MFC application class that includes this as below.
#include "..\\KeyLoggerLibrary\\KeyLogger.h"
and in one of its function in this calss i used the code below.
CKeyLogger obj1;
obj.KeyLoggerMain();
it gives no compiler errors but gives the linking error described below.
error LNK2001: unresolved external symbol "public: virtual __thiscall CKeyLogger::~CKeyLogger(void)" (??1CKeyLogger@@UAE@XZ)
file2.obj : error LNK2001: unresolved external symbol "public: __thiscall CKeyLogger::CKeyLogger(void)" (??0CKeyLogger@@QAE@XZ)
file2.obj : error LNK2001: unresolved external symbol "public: void __thiscall CKeyLogger::KeyLoggerMain(void)" (?KeyLoggerMain@CKeyLogger@@QAEXXZ)
Debug/CH3.exe : fatal error LNK1120: 3 unres
can anybody tell me what to do,
ddd
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You obviously didn't link your static library. I don't remember how to do it exactly in VC6, but look in the linker options for "additional libraries" or something like that.
--
Schni Schna Schnappi! Schnappi Schnappi Schnapp!
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i had made the win32 static library in vc6 and code is given both decleration and implemention are
class CKeyLogger : public CObject
{
public:
CKeyLogger();
virtual ~CKeyLogger();
void KeyLoggerMain();
CKeyLogger::CKeyLogger()
{
}
CKeyLogger::~CKeyLogger()
{
}
void CKeyLogger::KeyLoggerMain()
{
MessageBox("library is called");
}
i made the new MFC application class that includes this as below.
#include "..\\KeyLoggerLibrary\\KeyLogger.h"
and in one of its function in this calss i used the code below.
CKeyLogger obj1;
obj.KeyLoggerMain();
it gives no compiler errors but gives the linking error described below.
error LNK2001: unresolved external symbol "public: virtual __thiscall CKeyLogger::~CKeyLogger(void)" (??1CKeyLogger@@UAE@XZ)
file2.obj : error LNK2001: unresolved external symbol "public: __thiscall CKeyLogger::CKeyLogger(void)" (??0CKeyLogger@@QAE@XZ)
file2.obj : error LNK2001: unresolved external symbol "public: void __thiscall CKeyLogger::KeyLoggerMain(void)" (?KeyLoggerMain@CKeyLogger@@QAEXXZ)
Debug/CH3.exe : fatal error LNK1120: 3 unres
can anybody tell me what to do,
ddd
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Is there an echo in here? 
--
Schni Schna Schnappi! Schnappi Schnappi Schnapp!
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no dear !
i was not satisfied with ur answer so i re-posted aga in.
ddd
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I am not sure what you called your static library, let us suppose it is called 'KeyLogger.Lib'
Open the workspace for your new program.
Go to he Project menu and select Settings.
Click on the Link tab and choose Input from the Category drop down list box.
You need to do separately this for the debug and release builds.
In 'Additional library path' enter the relative path to the folder where the KeyLogger.Lib file is located. You might have different folders for the debug and release versions of the KeyLogger static library.
In the 'Object/Library Moduloes" enter KeyLogger.Lib
Click OK for the project settings dialog.
Now your project should link.
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i called it the static library bcos i had made by choosing the win32 static libraries in vc6.
i was not able to understand ur comment which is below
You might have different folders for the debug and release versions of the KeyLogger static library.
so tell me form which folder's relative path i should give. debug or relese of keylogger library. what is meant by relative path full path like C:\library\keylogger.lib" or "..\\library\\keyloger.lib".
ddd
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You can enter a fully qualified path.
If you enter a relative path, it is from where your current project's .DSP file is located.
Also when you enter the relative path, do not use the double backslashes.
So you might have something like this in the 'additional library/path' field
..\Library\Debug
for the debug, and for the relase you would have
..\Library\Release
Then in the 'object/library module' settings, you only enter the name of the library by itself: KeyLogger.Lib
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thank u it works perfectaly.
ddd
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I have just asked a question the day before yesterday, And thanks to Alok and Jörgen Sigvardsson who gave me nice ways to solve my last question.
Now I have got a new question to ask. Can I set the keyboard focus on a radio button when the dialog pop up?
I use GetDlgItem(IDC_RADIO1)->SetFocus(); in the OnInitDialog(). But it didn't work.
//IDC_RADIO1 is the ID of the radio button in the dialog
//where I wish the keyboard focus to stay at when the dialog pop up
Thanks!
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If you set the focus in OnInitDialog(), you must return FALSE from OnInitDialog(). If you don't, the normal Windows dialog handling will set the focus to the first control in the tab order.
Software Zen: delete this;
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Thanks!
I tried the method you told me, And it did work in the dialog.
But when I tried this in a fromview, which contains the item I want to set the keyboard focus at, it didn't work.
Because the OnInitialUpdate() function in the CFormView class doesn't have a return value.
What can I do in this case?
Thanks!
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You could try to post your form view a special message, that once recieved, will set the focus for you, after the formview has initialized. Once you are out of an 'init' handler, like OnInitDialog it is easy to set the focus to any control you want. The default handlers almost always try to set one for you, which as you have discovered is not always convenient.
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Has anyone been able to determine the state of the checkbox on the standard CDateTimeCtrl?
It is driving me bonkers and I cannot find any documentation realting to it.
Thanks
Polly punter
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If you wish, check BCGDateTime control, which is free on there site, you can download code and example, which may give you some idea.
Anand
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Hi,
I want to use STL containers(list,string.....) in my MFC application.
The problem is that I keep getting errors.
for example, when I declare :
using namespace std;
I get this error:
--------------------Configuration: DLLTest - Win32 Debug--------------------
Compiling...
DLLTestDlg.cpp
D:\eli_v\DLLTest\DLLTestDlg.cpp(12) : error C2871: 'std' : does not exist or is not a namespace
Error executing cl.exe.
DLLTest.exe - 1 error(s), 0 warning(s)
and when i declare :
#include <string>
string s;
I get these strange errors:
--------------------Configuration: DLLTest - Win32 Debug--------------------
Compiling...
DLLTestDlg.cpp
D:\eli_v\DLLTest\DLLTestDlg.cpp(12) : error C2871: 'std' : does not exist or is not a namespace
c:\program files\microsoft visual studio\vc98\include\new(35) : error C2061: syntax error : identifier 'THIS_FILE'
c:\program files\microsoft visual studio\vc98\include\new(35) : error C2091: function returns function
c:\program files\microsoft visual studio\vc98\include\new(35) : error C2809: 'operator new' has no formal parameters
c:\program files\microsoft visual studio\vc98\include\new(36) : error C2061: syntax error : identifier 'THIS_FILE'
c:\program files\microsoft visual studio\vc98\include\new(37) : error C2091: function returns function
c:\program files\microsoft visual studio\vc98\include\new(37) : error C2556: 'void *(__cdecl *__cdecl operator new(void))(unsigned int,const struct std::nothrow_t &)' : overloaded function differs only by return type from 'void *(__cdecl *__cdecl op
erator new(void))(unsigned int)'
c:\program files\microsoft visual studio\vc98\include\new(35) : see declaration of 'new'
c:\program files\microsoft visual studio\vc98\include\new(41) : error C2061: syntax error : identifier 'THIS_FILE'
c:\program files\microsoft visual studio\vc98\include\new(42) : error C2091: function returns function
c:\program files\microsoft visual studio\vc98\include\new(42) : error C2556: 'void *(__cdecl *__cdecl operator new(void))(unsigned int,void *)' : overloaded function differs only by return type from 'void *(__cdecl *__cdecl operator new(void))(unsig
ned int)'
c:\program files\microsoft visual studio\vc98\include\new(35) : see declaration of 'new'
c:\program files\microsoft visual studio\vc98\include\new(42) : error C2809: 'operator new' has no formal parameters
c:\program files\microsoft visual studio\vc98\include\new(42) : error C2065: '_P' : undeclared identifier
D:\eli_v\DLLTest\DLLTestDlg.cpp(14) : error C2146: syntax error : missing ';' before identifier 's'
D:\eli_v\DLLTest\DLLTestDlg.cpp(14) : error C2501: 'string' : missing storage-class or type specifiers
D:\eli_v\DLLTest\DLLTestDlg.cpp(14) : fatal error C1004: unexpected end of file found
Error executing cl.exe.
DLLTest.exe - 15 error(s), 0 warning(s)
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eli15021979 wrote:
using namespace std;
This is generally a very bad idea! This exposes everything in the std namespace to the current (mostly global) namespace. You ask for problems if you do this...
You should use: #include <string><br>std::string s; instead. I don't know if it solves your problem, but it is a better programming practice.
eli15021979 wrote:
D:\eli_v\DLLTest\DLLTestDlg.cpp(12) : error C2871: 'std' : does not exist or is not a namespace
This error implies that the std namespace is not known. There can be many reasons for this. Some of the many reasons could be:
<list> You din't include a header from the std library before the declaration
You are in a other namespace (except for the global namespace) in which the 'std' namespace is not declared.
You included a std header in a namespace other than the global and made the std namespace part of the other namespace and now you are trying to access it from the global namespace...
etc..
I hope that this information helps you to narrow down your problem.
Good luck!
I also got the blogging virus..[^]
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Hello
I was download the "MOTLY FOOL" toolbar project and I build it
And every thing become right
But when I want to add a Dialog Using MFC the project rejected that
So
How I can add a new MFC object to "MOTLYFOOL" project?Thanks.
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Hi,
does anybody knows if I can programmatically add and remove controls to a CView(derived) class and attach event handlers without message maps? If it is possible please refer to an article or describe the method.
Thanks
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