Re: how to do validation of radiobuttons - C# Discussion Boards

WhiteGirl234-Jul-07 1:53

4-Jul-07 1:53

I use tx textcontrol to transform a word document in pdf.

but if my document is to big I can't see the all pdf,I can see only a part of it.
Because of this I use textcontrol function: LoadSaveAttribute where I need the width,Height,LeftMargin of the document.

Thanks for you help.

Re: Width of a document

Pete O'Hanlon4-Jul-07 2:05

Pete O'Hanlon

4-Jul-07 2:05

I would think that the forums for this control would be the best place to start. BTW - I found this[^] blog entry about licensing which addresses your earlier post.

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Deja View - the feeling that you've seen this post before.

Re: Width of a document

Christian Graus4-Jul-07 4:18

Christian Graus

4-Jul-07 4:18

You can use the office tools to control Word within your app, that may help. Otherwise, you are asking a lot of questions here about a control that, in all probability, most of us have not used. I don't want to discourage you from posting here in general, but these questions will probably get better answers if you ask them in forums for the product you're using.

Christian Graus - Microsoft MVP - C++

"I am working on a project that will convert a FORTRAN code to corresponding C++ code.I am not aware of FORTRAN syntax" ( spotted in the C++/CLI forum )

how to do validation of radiobuttons

srinivassam4-Jul-07 0:55

srinivassam

4-Jul-07 0:55

in my application i have one table control in that i took 5 radiobutton,
my problem is no one select atleast one radio button then he won't go next page.how can validate these radiobuttons

srinivas

Re: how to do validation of radiobuttons

Tamimi - Code4-Jul-07 1:10

Tamimi - Code

4-Jul-07 1:10

you can set a default one

When you get mad...THINK twice that the only advice
Tamimi - Code

Re: how to do validation of radiobuttons

Muhammad Gouda4-Jul-07 1:44

Muhammad Gouda

4-Jul-07 1:44

if(!(rdioBtn1.Checked || rdioBtn2.Checked || rdioBtn3.Checked || rdioBtn4.Checked || rdioBtn5.Checked ))<br />
{<br />
MessageBox.Show("Please, select one.");<br />
//Here stop the action of going to next page<br />
}

Mohamed Gouda
Egypt

Re: how to do validation of radiobuttons

Ravindra Nidhonkar4-Jul-07 1:57

Ravindra Nidhonkar

4-Jul-07 1:57

You can use Required field validator control...

Enjoy coding....

Re: how to do validation of radiobuttons

srinivassam4-Jul-07 2:27

srinivassam

4-Jul-07 2:27

Hi Mohamed Gouda garu ,
THANKYOU VERYMUCH
your code is very useful to me
THANKYOU VERYMUCH
Regards,
srinivas

srinivas

Reversing String-Recursive

jalburzicon4-Jul-07 0:31

jalburzicon

4-Jul-07 0:31

I am studying c# myself. It's some piece of code from Herbert Schildt's book, it's working but I cannot understand displayRev part, like return gives what..
Can you explain the code line by line?

using System;

class RevStr
{
    public void displayRev(string str) 
   {
      if(str.Length>0){
       displayRev(str.Substring(1, str.Length-1));}
     else{ 
       return;}
     Console.Write(str[0]);
  }
}
class RevStrDemo
{
   public static void Main()
   {
     string s = "jale";
     RevStr rosb = new RevStr();

     Console.WriteLine(s);
     rosb.displayRev(s);
   }
}

Insistence

Re: Reversing String-Recursive

Pete O'Hanlon4-Jul-07 0:41

Pete O'Hanlon

4-Jul-07 0:41

I won't do it line by line, but I will explain what recursion does and hopefully that will help you. Basically, recursion refers to a method calling itself until some condition is met - (if there is no condition to meet, this is referred to as infinite recursion and is generally seen as a bad thing).

The code above is stepping into the displayRef method repeatedly, and is subtracting a character from the string that it passes into itself on each recursion. The terminating condition is the string being empty. When the string is empty, it exits from the method (the return statement) and unwinds itself back up the stack.

As you can see, the unwind simply writes the first character of the substring to the console.

I hope that helps.

Please visit http://www.readytogiveup.com/ and do something special today.
Deja View - the feeling that you've seen this post before.

Re: Reversing String-Recursive

CPallini4-Jul-07 2:36

CPallini

4-Jul-07 2:36

jalburzicon wrote:
Can you explain the code line by line?

Please, first read [^]
Smile | :)

If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler.
-- Alfonso the Wise, 13th Century King of Castile.

Re: Reversing String-Recursive

jalburzicon4-Jul-07 2:51

jalburzicon

4-Jul-07 2:51

in the end of recursion,does it return "e" from if-statement,
with every recursion , does it writes str[0]?
these are my problems =(

I understand the logic, but I cant get into code, it is necessary to write by myself, thanks

Insistence

Re: Reversing String-Recursive

Paul Conrad4-Jul-07 6:02

Paul Conrad

4-Jul-07 6:02

Just single step through the code in the debugger and watch what it is doing. Basically your recursive step occurs while the length of str is greater than zero. The base case is when the length of str is 0. From a quick glance, the recursive function doesn't look like as good of an example as something like the basic recursive factorial function, which is more clear about what is going on...

Essentially, the displayRev puts the original string onto the stack in forward order, but displays as reverse when popping off the stack...

"Any sort of work in VB6 is bound to provide several WTF moments." - Christian Graus

Re: Reversing String-Recursive

jalburzicon4-Jul-07 7:57

jalburzicon

4-Jul-07 7:57

Thanks about the debugger idea, I am not that practical on programming yet as you see..

Insistence

Re: Reversing String-Recursive

Paul Conrad4-Jul-07 8:14

Paul Conrad

4-Jul-07 8:14

Since I get the impression you are just learning about recursion, learning how to use the debugger to assist you in looking through code execution, now isn't too bad of a time to get familiar with using debuggers Big Grin | :-D

"Any sort of work in VB6 is bound to provide several WTF moments." - Christian Graus

Re: Reversing String-Recursive

jalburzicon5-Jul-07 6:23

jalburzicon

5-Jul-07 6:23

Insistence

Format of the initialization string does not conform to specification starting at index 0 in my connection establishing statement .

kalaveer4-Jul-07 0:20

kalaveer

4-Jul-07 0:20

Hi,
Does anybody knows why this unhandled exception occurs and how to resolve this.

"Format of the initialization string does not conform to specification starting at index 0" in my oledb connection string

Thanks in advance. Smile | :)

Re: Format of the initialization string does not conform to specification starting at index 0 in my connection establishing statement .

Pete O'Hanlon4-Jul-07 0:57

Pete O'Hanlon

4-Jul-07 0:57

Well, google only has about 292000 hits. I'm sure that one of them might be able to help.

http://www.google.co.uk/search?hl=en&q=Format+of+the+initialization+string+does+not+conform+to+specification+starting+at+index+0%22[^]

Please visit http://www.readytogiveup.com/ and do something special today.
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Re: Format of the initialization string does not conform to specification starting at index 0 in my connection establishing statement .

kalaveer4-Jul-07 1:06

kalaveer

4-Jul-07 1:06

Hurry! problem has gone!!!

There was a very little mistake in the connection string path of the database is wrongly mensioned. Correcting the path solved the issue.

System.Net.WebRequest to list contents of remote directory

mfmaneef4-Jul-07 0:20

mfmaneef

4-Jul-07 0:20

hello, is it possible to get the contents list of a remote http folder thorugh th system.net.webrequest() method..or is there any other way for to get the directory listing the contents

aneef

Re: System.Net.WebRequest to list contents of remote directory

SHatchard4-Jul-07 2:15

SHatchard

4-Jul-07 2:15

I know that it can be done with FTP, which might be useful to you - I dont have any code to hand but you would

1. Create an FtpWebRequest
2. Set the method property to ListDirectoryDetails
3. Set credentials
4. Call the GetResponseStream method
5. Pass it to a StreamReader and use the readline function to iterate though the lines in the file

Note that you get more than just the filename, you get some other information too such as the size, etc and folders are included so you might need to format the responses in some way.

Re: System.Net.WebRequest to list contents of remote directory

mfmaneef4-Jul-07 6:04

mfmaneef

4-Jul-07 6:04

wow thanx alot.. i will give a try on this... thanx again Laugh | :laugh:

aneef

How to use ShowDialog in the click event of menu item

Muhammad Gouda4-Jul-07 0:18

Muhammad Gouda

4-Jul-07 0:18

How to make my form acts as a dialog box when it is called from a menu item.
I could do this using Form.ShowDialog() within any event of any control on a form.
But when I called this function on the click event of a menu item, I got the following exception Mad | :mad:

.
"Forms that are not top level forms cannot be displayed as a modal dialog. Remove the form from any parent form before calling showDialog"

Mohamed Gouda
Egypt

Re: How to use ShowDialog in the click event of menu item

JeffPClark4-Jul-07 7:58

JeffPClark

4-Jul-07 7:58

Try:
Form.ShowDialog(this);

This will create a modal dialog form on top of the main form.

Jeff Clark
Systems Architect
JP Clark, INC.
Columbus, Ohio

Re: How to use ShowDialog in the click event of menu item

Muhammad Gouda4-Jul-07 22:18

Muhammad Gouda

4-Jul-07 22:18

Thanks Jeff .
It did not work. But you helped me rethinking about my code and discover my fault D'Oh! | :doh:

.
The problem was that I defined the MdiParent property of the dialog form to be this
My code was some thing like this.

MyDialogForm dialogForm = new MyDialogForm();<br />
dialogForm.MdiParent = this;  // This was my fault<br />
dialogForm.ShowDialog();

However, Thanks a lot

Mohamed Gouda
Egypt

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