C / C++ / MFC Discussion Boards

karmendra_js13-Oct-05 4:07

13-Oct-05 4:07

Hi,
I want to disable multiple row select in a list control. It should select only one row at a time how can i do this.

Thanks

Re: ListCtrl

muthuramji13-Oct-05 5:26

muthuramji

13-Oct-05 5:26

In design view select list control properties->styles->single selection

check this box , u r job is done !

Muthu Ramji.Al.V
Software developer(VC++)
Sify Limited
muthu_ramji@sifycorp.com

Re: ListCtrl

karmendra_js14-Oct-05 0:00

karmendra_js

14-Oct-05 0:00

I want to do it programatically. It is in LVS_REPORT style.

What you are saying is for ListBoxCtrl.

Thanks

Re: ListCtrl

muthuramji14-Oct-05 6:29

muthuramji

14-Oct-05 6:29

Dear friend,
if u have 2 do in code then try this,
1.

//-------- Start create a list control using dwstyle LVS_SINGLESEL
CListCtrl* pmyListCtrl=new CListCtrl;
pmyListCtrl->Create(WS_CHILD|WS_VISIBLE|WS_BORDER|LVS_REPORT|LVS_SINGLESEL ,CRect(10,10,300,200), this, 1);
//---------

2.same can be done with visual design mode as i said earlier. Both in list box & list control v have that check box. Kindly check in property dialog box

3.if u want i will help with a demo program

function TransmitFile( )

REU13-Oct-05 2:28

REU

13-Oct-05 2:28

does somebody knows how to use this function
I know that it gets 7 param ,

but the weird thing is that theres is no other function to receive the File
something like ReceiveFile , there is no other function, sooo
how can I receive the transmited file ??????????????????

so how can I receive the file ??

I need to transfer one file through a sockte,,
the socket is working right , I can send and receive with functions
send () , and recv ()
but I want to know the ease way to transfer a file,,

can somebody help me ???

THANX

GOD BLESS YA

REU

Who can tell me how to use Serialize

Fired Fish13-Oct-05 1:55

Fired Fish

13-Oct-05 1:55

I meet problem about read and write file

my email is fisheryj@gmail.com

----------------------------
Jerry yu
Chinese
programming fans

Re: Who can tell me how to use Serialize

ThatsAlok13-Oct-05 2:24

ThatsAlok

13-Oct-05 2:24

try this series
http://www.codeproject.com/cpp/serialization_primer1.asp[^]

"Opinions are neither right nor wrong. I cannot change your opinion. I can, however, change what influences your opinion." - David Crow

cheers,
Alok Gupta
VC Forum Q&A :- I/ IV

Re: Who can tell me how to use Serialize

ddmcr13-Oct-05 2:48

ddmcr

13-Oct-05 2:48

In addition to Alok-s post , maybe this quick tutorial will be also useful to you Serialization in non - Document/View arch. projects [^]

"Success is the ability to go from one failure to another with no loss of enthusiasm." - W.Churchill

Re: Who can tell me how to use Serialize

David Crow13-Oct-05 3:33

David Crow

13-Oct-05 3:33

Jerry yu wrote:
I meet problem about read and write file

And what exactly would that problem be?

"One must learn from the bite of the fire to leave it alone." - Native American Proverb

Re: Who can tell me how to use Serialize

Fired Fish14-Oct-05 1:39

Fired Fish

14-Oct-05 1:39

I use vc++ just several times .I use Delphi before .
So I hope some one to help me .Because mfc is too difficult for me

thx

----------------------------
Jerry yu
Chinese
programming fans

How to get the total sectors for USB flash disk ?

bghuang13-Oct-05 1:46

bghuang

13-Oct-05 1:46

Which function can I use in VC6?
Prompt : there are not the CHS parameters for USB flash disk .

Wrong date from CDateTimeCtl

vikas amin13-Oct-05 1:31

vikas amin

13-Oct-05 1:31

I have used a date time control in my
project which i need to get the date from
teh user ,
I get everthing fine but the date retrived
is wrong.When again i select the same date
i get the date write by the same code .
Has anyone faced such problem.

Vikas Amin
Embin Technology
Bombay
vikas.amin@embin.com

Re: Wrong date from CDateTimeCtl

The NULL Developer13-Oct-05 1:35

The NULL Developer

13-Oct-05 1:35

I couldnt exactly get your problem. Maybe you should call UpdateData(FALSE) before using the associated variable.

"Do first things first, and second things not at all."
— Peter Drucker.

Re: Wrong date from CDateTimeCtl

ThatsAlok13-Oct-05 7:38

ThatsAlok

13-Oct-05 7:38

The NULL Developer wrote:
Maybe you should call UpdateData(FALSE) before using the associated variable.
Just a little Correction.. there is no need of use UpdateData(FALSE) on CDateTimeCtrl

"Opinions are neither right nor wrong. I cannot change your opinion. I can, however, change what influences your opinion." - David Crow

cheers,
Alok Gupta
VC Forum Q&A :- I/ IV

Re: Wrong date from CDateTimeCtl

vikas amin13-Oct-05 20:15

vikas amin

13-Oct-05 20:15

Thank you Alok
in the MSDN samples just search for floder named "cmnctrl1"
open the project and in the file "datetime.cpp" replace the function as below

<br />
<br />
<br />
void CDateTimePage::OnDTNotify(NMHDR *pHdr, LRESULT * pRes)<br />
{<br />
//->----declater the variable ----<br />
	CTime ct;<br />
	CString st;<br />
//->------------------------------<br />
<br />
switch( pHdr->code)<br />
	{<br />
		<br />
	case DTN_CLOSEUP:<br />
		m_lbNotifyList.AddString(_T("DTN_CLOSEUP"));<br />
		<br />
		break;<br />
	case DTN_DATETIMECHANGE:<br />
<br />
		m_lbNotifyList.AddString(_T("DTN_DATETIMECHANGE"));<br />
//->---------------------------------------------------------------------------<br />
//->this code added by Vikas Amin to display the date from the datetime control  //->in the listbox<br />
		(m_DateTime.GetMonthCalCtrl())->GetCurSel(ct);<br />
		ct.GetMonth ();<br />
		m_DateTime.UpdateData (TRUE);<br />
		st.Format(_T(" ---  %02d/%02d/%2d ---%2d"),ct.GetMonth(),ct.GetDay(),ct.GetYear(),((ct.GetDay())-12 ));<br />
		m_lbNotifyList.AddString(st);<br />
//->---------------------------------------------------------------------------<br />
		break;<br />
<br />
	case MCN_SELECT:<br />
		m_lbNotifyList.AddString(_T("asdf"));<br />
		break;<br />
<br />
	case DTN_DROPDOWN:<br />
		m_lbNotifyList.AddString(_T("DTN_DROPDOWN"));		<br />
		break;<br />
	case DTN_FORMAT:<br />
		m_lbNotifyList.AddString(_T("DTN_FORMAT"));<br />
		break;<br />
	case DTN_FORMATQUERY:<br />
		m_lbNotifyList.AddString(_T("DTN_FORMATQUERY"));<br />
		break;<br />
	case DTN_USERSTRING:<br />
		m_lbNotifyList.AddString(_T("DTN_USERSTRING"));<br />
		break;<br />
	case DTN_WMKEYDOWN:<br />
		m_lbNotifyList.AddString(_T("DTN_WMKEYDOWN"));<br />
		break;<br />
	}<br />
<br />
}<br />

The code in between the //->---- ... ... . //->-----
is added by me actully according to the theory it should display
the data in the datetime control but it displays a wrong date that
is 12 days before .

I found a solution to directly get the text from the date time control
with GetWindowText ();
but i have to parse it by my self & cannot use the direct function like GetMonth(),GetDay(),GetYear(),etc.

Vikas Amin
Embin Technology
Bombay
vikas.amin@embin.com

Re: Wrong date from CDateTimeCtl

ThatsAlok13-Oct-05 20:21

ThatsAlok

13-Oct-05 20:21

vikas amin wrote:
I found a solution to directly get the text from the date time control
with GetWindowText ();

What about calling

DWORD CDateTimeCtrl::GetTime(
   CTime& timeDest 
) const;

"Opinions are neither right nor wrong. I cannot change your opinion. I can, however, change what influences your opinion." - David Crow

cheers,
Alok Gupta
VC Forum Q&A :- I/ IV

Re: Wrong date from CDateTimeCtl

vikas amin13-Oct-05 21:28

vikas amin

13-Oct-05 21:28

actually alok
I have used DateTime control as an acitveX in my MFC project.
the control is placed on on DialonBar
I got the handle to the control by using this code

CWnd* pCtrl1 = m_dlgbar.GetDlgItem(IDC_DTPICKER1);
ASSERT(pCtrl1 != NULL);

Then i tried to get the text from the Datetime control by using the
code
pCtrl1->GetWindowText (st);
but it retives not data .Do u hav any idea why
i tested this code on a Dlgbase project

Vikas Amin
Embin Technology
Bombay
vikas.amin@embin.com

Re: Wrong date from CDateTimeCtl

vikas amin13-Oct-05 23:27

vikas amin

13-Oct-05 23:27

i actully wanted to get the window text of a control
so i created a pointer to that control .

CDateTimeCtrl * pwnd =(CDateTimeCtrl *) m_dlgbar.GetDlgItem(IDC_DATE_PICKER);

now i tired to get the window text by this but

CString st;
pwnd->GetWindowText (st);

I dont understand why this dont work ..........
do u have any idea.

Yeh actuly i got the date and time by using the

pwnd->GetTime(ct);

Thank u

Vikas Amin
Embin Technology
Bombay
vikas.amin@embin.com

Re: Wrong date from CDateTimeCtl

David Crow13-Oct-05 3:27

David Crow

13-Oct-05 3:27

vikas amin wrote:
I get everthing fine but the date retrived
is wrong.

What do you mean by "wrong?" What does the code look like?

"One must learn from the bite of the fire to leave it alone." - Native American Proverb

Re: Wrong date from CDateTimeCtl

vikas amin13-Oct-05 20:17

vikas amin

13-Oct-05 20:17

Thank you David
in the MSDN samples just search for floder named "cmnctrl1"
open the project and in the file "datetime.cpp" replace the function as below

<br />
<br />
<br />
void CDateTimePage::OnDTNotify(NMHDR *pHdr, LRESULT * pRes)<br />
{<br />
//->----declater the variable ----<br />
	CTime ct;<br />
	CString st;<br />
//->------------------------------<br />
<br />
switch( pHdr->code)<br />
	{<br />
		<br />
	case DTN_CLOSEUP:<br />
		m_lbNotifyList.AddString(_T("DTN_CLOSEUP"));<br />
		<br />
		break;<br />
	case DTN_DATETIMECHANGE:<br />
<br />
		m_lbNotifyList.AddString(_T("DTN_DATETIMECHANGE"));<br />
//->---------------------------------------------------------------------------<br />
//->this code added by Vikas Amin to display the date from the datetime control  //->in the listbox<br />
		(m_DateTime.GetMonthCalCtrl())->GetCurSel(ct);<br />
		ct.GetMonth ();<br />
		m_DateTime.UpdateData (TRUE);<br />
		st.Format(_T(" ---  %02d/%02d/%2d ---%2d"),ct.GetMonth(),ct.GetDay(),ct.GetYear(),((ct.GetDay())-12 ));<br />
		m_lbNotifyList.AddString(st);<br />
//->---------------------------------------------------------------------------<br />
		break;<br />
<br />
	case MCN_SELECT:<br />
		m_lbNotifyList.AddString(_T("asdf"));<br />
		break;<br />
<br />
	case DTN_DROPDOWN:<br />
		m_lbNotifyList.AddString(_T("DTN_DROPDOWN"));		<br />
		break;<br />
	case DTN_FORMAT:<br />
		m_lbNotifyList.AddString(_T("DTN_FORMAT"));<br />
		break;<br />
	case DTN_FORMATQUERY:<br />
		m_lbNotifyList.AddString(_T("DTN_FORMATQUERY"));<br />
		break;<br />
	case DTN_USERSTRING:<br />
		m_lbNotifyList.AddString(_T("DTN_USERSTRING"));<br />
		break;<br />
	case DTN_WMKEYDOWN:<br />
		m_lbNotifyList.AddString(_T("DTN_WMKEYDOWN"));<br />
		break;<br />
	}<br />
<br />
}<br />

Re: Wrong date from CDateTimeCtl

David Crow14-Oct-05 2:44

David Crow

14-Oct-05 2:44

vikas amin wrote:
st.Format(_T(" --- %02d/%02d/%2d ---%2d"),ct.GetMonth(),ct.GetDay(),ct.GetYear(),((ct.GetDay())-12 ));
m_lbNotifyList.AddString(st);
...
but it displays a wrong date that
is 12 days before .

Do you suppose it has to do with the 12 that is being subtracted from GetDay()?

"One must learn from the bite of the fire to leave it alone." - Native American Proverb

how to use Class matrix in VC++

chen100013-Oct-05 1:27

chen1000

13-Oct-05 1:27

hi,can you tell me how to use Class matrix in VC++,and will implement so kind of operation like mulitply,contradictorily and so on

Re: how to use Class matrix in VC++

ddmcr13-Oct-05 1:31

ddmcr

13-Oct-05 1:31

You can use CMatrix[^] class also , it supports all methods and operations you may need while working with matrices.

"Success is the ability to go from one failure to another with no loss of enthusiasm." - W.Churchill

Re: how to use Class matrix in VC++

chen100013-Oct-05 1:40

chen1000

13-Oct-05 1:40

can you give me some examples about how to use this Class CMatrix,Thank you very much.if you can provide some program about this Class ,you will make me very happy

Re: how to use Class matrix in VC++

ddmcr13-Oct-05 2:13

ddmcr

13-Oct-05 2:13

Ok I'll try to make you very happy Smile | :)

#1. Include the "matrix.h" file in you project

#2. Now for example if you want to add two matrices do following :

int main()<br />
{<br />
        //Construct 3x3 matrices<br />
        CMatrix a(3,3);<br />
	CMatrix b(3,3);<br />
	CMatrix c(3,3);<br />
<br />
	//Initialize elements of a and b matrices<br />
	for(int i=0;i<3;i++)<br />
		for(int j=0;j<3;j++){<br />
			a.SetElement(i,j,i+j);//just example<br />
			b.SetElement(i,j,i-j);//just example<br />
	}<br />
<br />
	//Add a and b matrices<br />
		c = a+b;<br />
<br />
	//Get elements of c matrix<br />
	for(int i=0;i<3;i++){<br />
		for(int j=0;j<3;j++)<br />
	            printf("%.f ",c.GetElement(i,j));<br />
	   printf("\n");<br />
	}<br />
return 0;<br />
}

All other operations you can implement similar to this , just take a good look to the link I posted .

"Success is the ability to go from one failure to another with no loss of enthusiasm." - W.Churchill

Use Ctrl+Left/Right to switch messages, Ctrl+Up/Down to switch threads, Ctrl+Shift+Left/Right to switch pages.