C# Discussion Boards - CodeProject

ramdil29-Jun-07 2:46

29-Jun-07 2:46

Hi I want to send a string to MSMQ.But when i call the send method its showing me an error Format is not valid.Can any one help me on solving this issue
I have written only this much code

System.Messaging.Message mm = new System.Messaging.Message();
MessageQueue mq = new System.Messaging.MessageQueue(XMLMSMQPath);
mq.Formatter = new XmlMessageFormatter(new String[] { "System.String,mscorlib" });
mm.Body = xmlFileName;

what do i need for this.Please help me in this

mm.Label = "FileNames";
mq.Send(mm);

Regards
DilipRam

Re: MSMQ Send Error

originSH29-Jun-07 3:05

originSH

29-Jun-07 3:05

message.Formatter = new BinaryMessageFormatter(System.Runtime.Serialization.Formatters.FormatterAssemblyStyle.Simple, System.Runtime.Serialization.Formatters.FormatterTypeStyle.TypesAlways);

Thats what I use and it seems to always work. This is assuming that you don't want XML formatting for a particular reason.

Re: MSMQ Send Error

ramdil29-Jun-07 3:43

ramdil

29-Jun-07 3:43

Hi thanks for the reply..but still format invalid error arises..
the code which i am executing is

System.Messaging.Message mm = new System.Messaging.Message();
MessageQueue mq = new System.Messaging.MessageQueue(XMLMSMQPath);
mm.Formatter = new BinaryMessageFormatter(System.Runtime.Serialization.Formatters.FormatterAssemblyStyle.Simple, System.Runtime.Serialization.Formatters.FormatterTypeStyle.TypesAlways);
mm.Body = xmlFileName;
mm.Label = "FileNames";
mq.Send(mm);

but at the mq.send(mm) it is showing formatname is invalid...
Please help me..Am i missing any thing in this code..

Regards
DilipRam

place program icon into desktop toolbox

iman_kh29-Jun-07 2:12

iman_kh

29-Jun-07 2:12

hi how can i place my program icon into desktop toolbox?

Re: place program icon into desktop toolbox

giddy_guitarist29-Jun-07 3:45

giddy_guitarist

29-Jun-07 3:45

hi ,

I'm not entirely sure what you mean by Desktop **toolbox!?

If you mean the Visual Studio toolbox you need to add the ToolBoxBitmap attribute over the class:

[System.Drawing.ToolboxBitmap("c:\\stop.bmp")]
class MyStopControl
{
}

If you mean the StartMenu , then check out deployment in .NET (search google)

Gideon

Re: place program icon into desktop toolbox

iman_kh29-Jun-07 5:06

iman_kh

29-Jun-07 5:06

hi so thanks for your help

Nothing and null

Brendan Vogt29-Jun-07 2:08

Brendan Vogt

29-Jun-07 2:08

Hi,

Is Nothing (in VB.NET) and null (in C#) the same thing? Why I ask is because I saw a piece of VB code where they set a DateTime value equal to nothing. Now I know that DateTime can't be equal to null.

Regards
ma se

Re: Nothing and null

Christian Graus29-Jun-07 2:11

Christian Graus

29-Jun-07 2:11

ma se wrote:
Is Nothing (in VB.NET) and null (in C#) the same thing?

Yes.

Interesting. You're right, it works in VB but not C#, I wonder what the reason for that is.

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 )

Re: Nothing and null

Brendan Vogt29-Jun-07 2:16

Brendan Vogt

29-Jun-07 2:16

So how should I then implement this?? Should I then just set it to DateTime.Now?

Re: Nothing and null

Vikram A Punathambekar29-Jun-07 2:20

Vikram A Punathambekar

29-Jun-07 2:20

ma se wrote:
So how should I then implement this?? Should I then just set it to DateTime.Now?

Depends on what you want. If you want to initialize it to any value, DateTime.Now is as good as any. If you specifically want to store a value that indicates it wasn't given a 'real' value, I suggest you pick some standard value, say, 2000-01-01 00:00:00.

Cheers,
Vıkram.

After all is said and done, much is said and little is done.

Re: Nothing and null

Luc Pattyn29-Jun-07 2:41

Luc Pattyn

29-Jun-07 2:41

DateTime.MinValue is typically used for "no value yet".

Smile | :)

Luc Pattyn

[My Articles] [Forum Guidelines]

Re: Nothing and null

Urs Enzler29-Jun-07 11:18

Urs Enzler

29-Jun-07 11:18

Or a DateTime? equal to null is used for "no value yet".

MinValue can lead to very ugly bugs Blush | :O

Happy Programming
Urs

-^-^-^-^-^-
no risk no funk

Re: Nothing and null

Vasudevan Deepak Kumar29-Jun-07 3:01

Vasudevan Deepak Kumar

29-Jun-07 3:01

Or DateTime.MinValue?

Vasudevan Deepak Kumar
Personal Homepage
Tech Gossips

Re: Nothing and null

Not Active29-Jun-07 3:07

Not Active

29-Jun-07 3:07

only two letters away from being an asset

Re: Nothing and null [modified]

Not Active29-Jun-07 2:27

Not Active

29-Jun-07 2:27

If you need DateTime as null you can use a Nullable type

Nullable<DateTime> dt = null;

or shorthand

DateTime? dt = null;

-- modified at 9:25 Friday 29th June, 2007

only two letters away from being an asset

Re: Nothing and null

Not Active29-Jun-07 2:29

Not Active

29-Jun-07 2:29

Because VB is all about nothing Poke tongue | ;-P

only two letters away from being an asset

Re: Nothing and null

Vasudevan Deepak Kumar29-Jun-07 3:02

Vasudevan Deepak Kumar

29-Jun-07 3:02

Vasudevan Deepak Kumar
Personal Homepage
Tech Gossips

Re: Nothing and null

Sathesh Sakthivel29-Jun-07 3:34

Sathesh Sakthivel

29-Jun-07 3:34

Regards,

Satips. Rose | [Rose]

Re: Nothing and null

Kevin McFarlane29-Jun-07 8:49

Kevin McFarlane

29-Jun-07 8:49

There are a few little differences like this between VB and C#. I spent some months on a contract doing VB .NET after having done C# and I was caught out on a few things. Example, locals are automatically initialised to defaults in VB. But not in C#. Actually, I think VB is correct in this case, but nevertheless it is a difference.

Kevin

Re: Nothing and null

Dave Doknjas29-Jun-07 14:01

Dave Doknjas

29-Jun-07 14:01

'Nothing' and 'null' are not equivalent.
'Nothing' in VB is the default value of the type. For reference types, this is equivalent to 'null' in C#, but for value types 'Nothing' means the state of the value when created.

That's why you can use "Is Nothing" in VB for reference types and "= Nothing" for value types.

David Anton
www.tangiblesoftwaresolutions.com
Instant C#: VB to C# converter
Instant VB: C# to VB converter
C++ to C# Converter: converts C++ to C#
C++ to VB Converter: converts C++ to VB
Instant C++: converts C# to C++/CLI and VB to C++/CLI
Instant Python: converts C# to IronPython and VB to IronPython

ImageMagick in c#?

$uresh $hanmugam29-Jun-07 2:07

$uresh $hanmugam

29-Jun-07 2:07

Hi all,
How can i integrate the ImageMagick with c# .net. If you have any samples or links please let me know.

thanks in advance

Re: ImageMagick in c#?

Christian Graus29-Jun-07 2:10

Christian Graus

29-Jun-07 2:10

you'd need to use p/invoke. Why would you want to ? What do you need that GDI+ won't do ?

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 )

Re: ImageMagick in c#?

$uresh $hanmugam29-Jun-07 2:33

$uresh $hanmugam

29-Jun-07 2:33

i need to convert from pdf file into tiff file? If it is possible with in GDI+, please send some samples.

Re: ImageMagick in c#?

Christian Graus29-Jun-07 8:50

Christian Graus

29-Jun-07 8:50

ImageMagik does that ? OK, I didn't know that. In that case, p/invoke is your best bet, there are articles here on CP about it.

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 )

Regular Expression problem

t4ure4n29-Jun-07 0:37

t4ure4n

29-Jun-07 0:37

I have a following regex in my program

01          private void myMethod
02          {
03            string strInput = "http://www.yahoo.com/";
04            string p = strInput;
05            Regex myRegex = new Regex(@"http://(www\.)(?[^\.]+)\.com", RegexOptions.IgnoreCase);
06
07            MatchCollection MatchList = myRegex.Matches(strInput);
08
09            StringBuilder sb = new StringBuilder();
10            sb.Append(MatchList.Count + " Matches found\n");
11            sb.Append("==========================================\n");
12            rtbOutput.Text = sb.ToString();
13           }

But when i run the program i receie the following error

An unhandled exception of type 'System.ArgumentException' occurred in System.dll
Additional information: parsing "http://(www\.)(?[^\.]+)\.com" - Unrecognized grouping construct.

What am I doing Wrong?

o O º(`'·.,(`'·., ☆,.·''),.·'')º O o°
»·'"`»* *☆ t4ure4n ☆* *«·'"`«
°o O º(,.·''(,.·'' ☆`'·.,)`'·.,)º O o°

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