C# Discussion Boards - CodeProject

Re: Copying Dictionaries

AmorphisOne2-Mar-07 4:05

AmorphisOne

2-Mar-07 4:05

Thanks, that was the info I needed - now it works as expected Smile | :)

Regards,
Amorphis

convert protected Audio files into unprotected audio files.

Balakrish2-Mar-07 0:36

Balakrish

2-Mar-07 0:36

How can i convert DRM protected Audio files(M4p,WMA format) into Unprotected audio file(WMA,MP3 format).

Bala

Re: convert protected Audio files into unprotected audio files.

sharpiesharpie2-Mar-07 1:41

sharpiesharpie

2-Mar-07 1:41

Put it simply, you can't.

Re: convert protected Audio files into unprotected audio files.

iqueiroz2-Mar-07 2:26

iqueiroz

2-Mar-07 2:26

If you have the licence of file it´s easy. Big Grin | :-D

Re: convert protected Audio files into unprotected audio files.

Balakrish4-Mar-07 22:21

Balakrish

4-Mar-07 22:21

Yes i have a audio files which are downloaded by payment from Apple website.
So please tell me how to proceed further.

Bala

Combo box -- Locking

Biswajit Ghosh2-Mar-07 0:21

Biswajit Ghosh

2-Mar-07 0:21

I just added three items in combo box and I made the SelectedIndex = 0. I would like to lock the combo box so that the user not be able to select other than the first item.

Re: Combo box -- Locking

stancrm2-Mar-07 0:31

stancrm

2-Mar-07 0:31

Just set comboBox.Enabled = false;

Re: Combo box -- Locking

Biswajit Ghosh2-Mar-07 0:52

Biswajit Ghosh

2-Mar-07 0:52

I dont like to make the enable property to false. I just want the combox to be visible and the user can show all the items in it. But will not be able to select any items from it(combo box).

Re: Combo box -- Locking

sharpiesharpie2-Mar-07 1:02

sharpiesharpie

2-Mar-07 1:02

        <br />
private void comboBox1_SelectedIndexChanged(object sender, EventArgs e)<br />
        {<br />
            comboBox1.SelectedIndex = 0;<br />
        }<br />

numeric textbox

vijayashanthi2-Mar-07 0:20

vijayashanthi

2-Mar-07 0:20

how to create a numeric textbox!
i want coding...

Re: numeric textbox

Stefan Troschuetz2-Mar-07 0:29

Stefan Troschuetz

2-Mar-07 0:29

MaskedTextBox[^]

"Programming today is a race between software engineers striving to build bigger and better idiot-proof programs, and the Universe trying to produce bigger and better idiots. So far, the Universe is winning." - Rick Cook

www.troschuetz.de

Re: numeric textbox

Frank Kerrigan2-Mar-07 2:26

Frank Kerrigan

2-Mar-07 2:26

You could use a validator with a regular expression that only excepts number.

Do the code youself its more fun and you'll never learn otherwise.

Grady Booch: I told Google to their face...what you need is some serious adult supervision. (2007 Turing lecture)

http:\\www.frankkerrigan.com

help regarding .NET Remoting

Zuhair Rizvi1-Mar-07 23:07

Zuhair Rizvi

1-Mar-07 23:07

I m getting this error "Because of security restrictions,the type System.Runtime.Remoting.ObjRef cannot be accessed."I have tried many things like
<clientproviders>
<formatter ref="binary">

<serverproviders>
<formatter ref="binary" typefilterlevel="Full">

writing this in XML or in source code file like

Hashtable props = new Hashtable();
props.Add( "port", "0" );
BinaryServerFormatterSinkProvider serverProvider = new BinaryServerFormatterSinkProvider();
serverProvider.TypeFilterLevel = TypeFilterLevel.Full;
chan = new TcpChannel( props, null, serverProvider );
ChannelServices.RegisterChannel( chan );
string url = String.Format( "tcp://{0}:9000/ChatServer", textServer.Text );
chatServer = (ChatApplication.ChatServerObject)Activator.GetObject( typeof(ChatApplication.ChatServerObject),url);

but it doesn't work.Itz urgent.Plz help.
Thanx in advance.
Rizvi

Help regarding XML

anu811-Mar-07 22:48

anu81

1-Mar-07 22:48

hi all,

I have a dataview where i have included sorting.
I need to have all the rows of a dataview (sorted values) as a XMLNodeList. How can i convert the dataview sorted values into a xmlnodelist.

Can anyone help me plz

Thanks in advance. Smile | :)

Regards

Anuradha

Try Catch 101

Ian Uy1-Mar-07 22:23

Ian Uy

1-Mar-07 22:23

Good Day Sir/Maam,

I wish to ask a very basic question. As I understand, the Try-Catch method catches all the error exception thrown and execute something inside the catch clause. The basic try-catch example:

<br />
try<br />
{<br />
//something erroneous<br />
}<br />
catch<br />
{<br />
MessageBox.Show("ERROR!");<br />
}<br />

A more advance try catch is indicating the exception thrown..

<br />
try<br />
{<br />
//something erroneous<br />
}<br />
catch(some exception)<br />
{<br />
MessageBox.Show("ERROR!");<br />
}<br />
catch(another exception)<br />
{<br />
MessageBox.Show("ERROR!");<br />
}<br />

My Question is this, if I indicated what exceptions to catch (like in the example above), How can I tell the try-catch to catch even the exemptions that wasn't indicated.

I Mean, when comparing it to an If-ElseIf-Else statement, what is the equivalent of "ELSE" in try catch?

I hope im not confusing you. Laugh | :laugh:

Thank you in advance.

Re: Try Catch 101

Guffa1-Mar-07 22:30

Guffa

1-Mar-07 22:30

You can specify a specific exception, a base exception (that matches all specific exceptions that inherit from it), the base for all .NET exceptions, or no specific exception class at all:

try {
   // do something dangerous
} catch(NullReferenceException ex) {
   // handles null reference exceptions
} catch(SystemException ex) {
   // handles all other system exceptions
} catch(Exception ex) {
   // handles all other .NET exceptions
} catch {
   // handles any exception, wherever it comes from
}

---
single minded; short sighted; long gone;

Re: Try Catch 101

Russell Jones1-Mar-07 23:42

Russell Jones

1-Mar-07 23:42

be very careful catching totally unexpected errors. Trapping errors and 'swallowing' them can lead to some very hard to find problems further down the road.

Russ

Re: Try Catch 101

Luc Pattyn2-Mar-07 0:46

Luc Pattyn

2-Mar-07 0:46

Hi,

yes, just specify one or more catch blocks; their order is important, the first one
that matches gets executed, the others not.
And in general dont ignore exceptions, i.e. dont create empty catch blocks; they
would completely hide a malfunction that sooner or later will puzzle you forever.

Smile | :)

Luc Pattyn

[My Articles]

Re: Try Catch 101

Ian Uy2-Mar-07 1:30

Ian Uy

2-Mar-07 1:30

Totally Right! I once created a catch block that contains //Do Nothing then I created an unexpected exception and it took me 7 hours to find.

Printing inforamtion Dialog

sathishtl0071-Mar-07 22:18

sathishtl007

1-Mar-07 22:18

How can I disable the 'information dialog' that pops up before the print
preview form shows itself?

Re: Printing inforamtion Dialog

Luc Pattyn2-Mar-07 0:47

Luc Pattyn

2-Mar-07 0:47

by not using PrintDialog at all. Smile | :)

Luc Pattyn

[My Articles]

how to capture packet in promiscus mode

prabir kishore1-Mar-07 22:07

prabir kishore

1-Mar-07 22:07

how to capture packet in promiscus mode using dotnetwinpcap.dll.
coz i want to capture all the packets passing in the kernel level.

Free resources of user control

Robert Rohde1-Mar-07 22:06

Robert Rohde

1-Mar-07 22:06

Hi,

I'm having a user control in .Net 2.0 created with Visual Studio 2005. Where would you place cleanup code? I ask because the partial file of the designer contains the Dispose method where I normally placed my cleanup code. But generally I'm trying to avoid to manually change the code of the Designer.cs files.
What are the common practices concerning this?

Robert

Re: Free resources of user control

Hayder Marzouk1-Mar-07 22:11

Hayder Marzouk

1-Mar-07 22:11

Hi,
When a form is disposed, all child controls are disposed. So you have hust to dispose the form.
HTH.

Re: Free resources of user control

Guffa1-Mar-07 22:24

Guffa

1-Mar-07 22:24

You can use the Disposed event to add an event handler that will be called when the controls is being disposed.

---
single minded; short sighted; long gone;

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