C / C++ / MFC

Re: Calling UpdateData(FALSE) will screw my RadioButton-group selection

5-Jan-04 10:05

Associate a CStatic object with static text control and call staticobj.SetWindowText("text") to change the text of static control instead of calling UpdateData

Smile | :)

Muhammad Shoaib Khan
http://geocities.com/lansolution

David Crow5-Jan-04 10:13

David Crow

5-Jan-04 10:13

andreir23 wrote:
But MY PROBLEM IS THAT IN THAT MOMENT THE RADIO BUTTON SELECTION SCREWS UP.
How is that? If "Decode" was selected before UpdateData(2nd radio button - "1") then "Encode" will become selected (1st radio button - "0").

HOW CAN I AVOID THIS? Not calling UpdateData or UpdateData() or UpdateData(TRUE) will cause this: m_Source = "C:\\AnyFile.txt"; does not update visually the static text control in my app.

Which is why UpdateData() should be used as little, if at all, as necessary. Use member control variables instead.

A rich person is not the one who has the most, but the one that needs the least.

Re: Calling UpdateData(FALSE) will screw my RadioButton-group selection

andreir235-Jan-04 11:17

andreir23

5-Jan-04 11:17

Allrighte...
But if I don't use that darn UpdateData, I CANNOT UPDATE the static text.

Let me put the problem in a simpler manner:

You have a static text (in Delphi it was called "Label")
How do you modify its content and then update it visually so the darn thing on the screen reflects what you wrote in it?!

I mean I mapped thru ClassWizard a CString to that static text control named m_Source.

If I just say

m_Source = "My text!!";

nothing on the screen changes. Especially that darn static text.

How exactly do you recommend me to do it?
TIA! Wink | ;-)

Re: Calling UpdateData(FALSE) will screw my RadioButton-group selection

abc8765-Jan-04 20:20

Re: Calling UpdateData(FALSE) will screw my RadioButton-group selection

5-Jan-04 20:20

andreir23 wrote:
I mean I mapped thru ClassWizard a CString to that static text control named m_Source.

Dont map a CString to that static text control. Map a CStatic to that static text control m_source( Just select Control in the combobox where u map a variable, it will autmatically show CStatic in the datatype field)

Now if u just want to change the text of static control, and want other controls like radio to remain unchanged, just call this function

<br />
 m_source.SetWindowText("My Text!!");<br />

It will modify its contents and update it visually.. Now to retrieve the text from static control call

<br />
 CString str;<br />
 m_source.GetWindowText(str);<br />

OR
U can also use

<br />
SendMessage(m_source.GetSafeHwnd(),WM_SETTEXT,(WPARAM)0,(LPARAM)"My Text"); <br />

to achieve the same task *visually updating static text without chaning any
other control.

This will definately solve your problem..

Smile | :)

Muhammad Shoaib Khan
http://geocities.com/lansolution

Nick Hodapp5-Jan-04 10:27

Nick Hodapp

5-Jan-04 10:27

Add a handler for BN_CLICKED for each of your radio buttons. In the handler, set the m_Operation member to the button that was just clicked. It isn't otherwise being updated, which is why it reverts to the old setting when UpdateData(FALSE) is called.

void CDlgtestDlg::OnRadio1()
{
m_Radio = 0;
}

void CDlgtestDlg::OnRadio2()
{
m_Radio = 1;
}

or you can add a single handler for this using ON_CONTROL_RANGE(BN_CLICKED ...)

Nick

This posting is provided “AS IS” with no warranties, and confers no rights. You assume all risk for your use. © 2003 Microsoft Corporation. All rights reserved.

sprintf formatting with conditional statement

shultas5-Jan-04 8:45

shultas

5-Jan-04 8:45

Hello all.

I can't seem to find this anywhere, but I do remember at some point in time I've used this in c, for printf.

What I'm basically trying to do is conditionally format my sprintf() statement to display an "s" character if an integer is greater than one.

Sort of like this:
if (x>1) {
sprintf(buf,"%d files processed",x);
} else {
sprintf(buf,"%d file processed,x);
}

Except I do not wish to use an if statement like that.

I remember somewhere that you can do this with some sort of printf(...? i>1...); I remember it had something to do with a question mark in there but that's all I can remember. Unfortunately a google search of "printf ?" doesn't seem to help me out.

Tyler Kellen5-Jan-04 8:49

Tyler Kellen

5-Jan-04 8:49

You're thinking of a lisp statement.
printf(buf,(x > 1 ? "%d files processed" : "%d file processed"),x);

conditional ? true : false

Hope this helps,
Tyler Kellen

abc8765-Jan-04 8:57

5-Jan-04 8:57

<br />
int i=5;<br />
int j=6;<br />
printf("Hello %d", i>0?i:j);<br />

Muhammad Shoaib Khan
http://geocities.com/lansolution

Prakash Nadar5-Jan-04 16:08

5-Jan-04 16:08

int i=5;
int j=6;
printf("Hello %d", i>0?i:j);

hahahaha

Programming is an art not a skill, every one can be a skilled programmer but not an artist.

abc8765-Jan-04 19:47

5-Jan-04 19:47

is it funny???

Muhammad Shoaib Khan
http://geocities.com/lansolution

Prakash Nadar5-Jan-04 20:15

5-Jan-04 20:15

yeah it is, what he asked for and what you giving answer for.

Programming is an art not a skill, every one can be a skilled programmer but not an artist.

abc8765-Jan-04 20:34

5-Jan-04 20:34

he was just asking for syntax that how to use ternary operator in a sngle printf statement

Not everyone is dumb like u ..that he wont get his answer from

printf("Hello %d", x>0?i Smile | :)

;

mr.prakash wrote:
Programming is an art not a skill, every one can be a skilled programmer but not an artist.

and think over it before posting..

Smile | :)

Muhammad Shoaib Khan
http://geocities.com/lansolution

Prakash Nadar5-Jan-04 21:28

5-Jan-04 21:28

sprintf(buf, "%d file%s processed", x, ( x == 1 ? "" : "s" ) );

is art.

printf("Hello %d", x>0?i); is skill.

and hey sorry to hurt your ego.

Programming is an art not a skill, every one can be a skilled programmer but not an artist.

Ian Darling5-Jan-04 9:01

5-Jan-04 9:01

How about:

sprintf(buf, "%d file%s processed", x, ( x == 1 ? "" : "s" ) );

(Yuck

)

--
Ian Darling
"The moral of the story is that with a contrived example, you can prove anything." - Joel Spolsky

Tyler Kellen5-Jan-04 9:05

Tyler Kellen

5-Jan-04 9:05

Clever

Jörgen Sigvardsson5-Jan-04 9:45

Jörgen Sigvardsson

5-Jan-04 9:45

I was wondering who'd come up with the sane solution, and here you are! Smile | :)

--
You're entertaining at least.

Ian Darling5-Jan-04 9:53

5-Jan-04 9:53

Jörgen Sigvardsson wrote:
I was wondering who'd come up with the sane solution, and here you are!

I thought it was fairly obvious, myself Smile | :)

--
Ian Darling
"The moral of the story is that with a contrived example, you can prove anything." - Joel Spolsky

Jörgen Sigvardsson5-Jan-04 9:58

Jörgen Sigvardsson

5-Jan-04 9:58

Indeed! A textbook C solution. Sometimes I miss getting down and dirty with raw bits Smile | :)

--
You're entertaining at least.

Ian Darling5-Jan-04 10:06

5-Jan-04 10:06

Jörgen Sigvardsson wrote:
Indeed! A textbook C solution.

Thank you Smile | :)

Jörgen Sigvardsson wrote:
Sometimes I miss getting down and dirty with raw bits

I don't miss void * at all though Smile | :)

And I'm quite happy programming at almost any level - each has it's own appeals and virtues. using VB.NET is a bit like going on a hedonistic and debauched holiday, C++ provides some much appreciated feelings of divinity, Lisp is all about artistry, and I'll leave Assembly to the philosophers Big Grin | :-D

--
Ian Darling
"The moral of the story is that with a contrived example, you can prove anything." - Joel Spolsky

Prakash Nadar5-Jan-04 16:09

5-Jan-04 16:09

You got my 5.

Programming is an art not a skill, every one can be a skilled programmer but not an artist.

shultas5-Jan-04 9:55

shultas

5-Jan-04 9:55

Thank you guys for the posts Big Grin | :-D

I knew that thing was in there somewhere!!!!!

I was trying to consolidate the code and make it in as less lines as possible (to make it easier to read / go through) but now I see that in this case it would probably be a bit better to do the IF statement because "sprintf(buf2,"%d File%s Processed",i,(i==1 ? "":"s"));" isn't exactly an eye appeal (although it works exactly like I want it to!) ... and since I do most of my work after a few Jack&Coke's ...... heheheh

Thanks again!

Ian Darling5-Jan-04 9:57