Re: C# on Linux - C# Discussion Boards

16-Jan-07 16:53

Sure, just google for reflector, and download it.

Christian Graus - C++ MVP

'Why don't we jump on a fad that hasn't already been widely discredited ?' - Dilbert

C# on Linux

loscarlitos16-Jan-07 14:32

loscarlitos

16-Jan-07 14:32

Is it possible, also graf.
And what do i need to do, look for?

Christian Graus16-Jan-07 14:57

16-Jan-07 14:57

loscarlitos wrote:

Is it possible, also graf.
And what do i need to do, look for?

I'm not sure what a lot of this means, but Mono is the Linux port of C#.

Christian Graus - C++ MVP

'Why don't we jump on a fad that hasn't already been widely discredited ?' - Dilbert

User 665816-Jan-07 15:15

User 6658

16-Jan-07 15:15

You need Mono. See the articles on this site and this link:

Mono

regards

modified 12-Sep-18 21:01pm.

Seishin#16-Jan-07 22:30

Seishin#

16-Jan-07 22:30

well mono is the only chance of c# on linux, but as I said "chance"..
mono isn't the framework. it's less functional and if memory didn't trick me it's only framework 1.1 'compatiblie'

life is study!!!

Darren D17-Jan-07 2:55

Darren D

17-Jan-07 2:55

I thought Microsoft was supposed to be working on Linux support. I found this for FreeBSD: http://msdn.microsoft.com/msdnmag/issues/02/07/SharedSourceCLI/

DD

loscarlitos17-Jan-07 12:42

loscarlitos

17-Jan-07 12:42

thx for the information
I though that the c# compiler wasn't open source so how did they get it on linux? So c# on windows is not really the same as on linux?

Reading Xml using XmlReader

Darren D18-Jan-07 2:45

Darren D

18-Jan-07 2:45

Not that I completely understand it, but what I think they are doing with this project is creating a Common Language Runtime library for FreeBSD. So in theory your compiled c# code should run on FreeBSD with Rotor installed.

FreeBSD is not Linux but it is a free version of Unix that is similar to Linux.

Patrick Klug16-Jan-07 13:07

16-Jan-07 13:07

Hi folks,

I am a bit puzzled how to use the System.Xml.XmlReader to read data D'Oh! | :doh:

To give a simple example I want to read a Xml file like this:

<Person>
<Name>Peter</Name>
<Sirname>Alen</Sirname>
</Person>

in a object with the same properties...

what I did was something like this:

...
Person person = new Person();
while (reader.Read())
{
if (reader.Name=="Name")
{
person.Name = reader.ReadElementContentAsString();
}
if (reader.Sirname == "Sirname")
{
person.Sirname = reader.ReadElementContentAsString();
}
}
...

of course simplified, the real thing is a bit more complicated...
this does work if the Xml is exactly the same way I outlined above but if, for example, the Name tag comes after the Sirname tag the code doesn't work anymore because the reader.ReadElementContentAsString() is advancing the reader and the reader.Read() as well thus one element is simply not handled by the code in the while loop...

I hope I explained it well enough Sniff | :^)

any suggestions welcome!
TIA
Pakl

Christian Graus16-Jan-07 13:36

16-Jan-07 13:36

If you don't have a proper schema, you're better off using an XmlDocument or XmlDataDocument, and XPath

Christian Graus - C++ MVP

'Why don't we jump on a fad that hasn't already been widely discredited ?' - Dilbert

Patrick Klug16-Jan-07 14:49

16-Jan-07 14:49

hmm, alright...

then I will switch to XPath for reading and use XmlWriter for writing...

thanks

just another thought...
I searched for any trick I could use to keep using XmlReader... maybe something like this...

bool read = false;
do
{
	read = false;
	if (reader.Name=="Person")
	{
		person = reader.ReadElementContentAsString();
		read = true;
	}
..... other stuff comes here...
}
while (read || reader.Read())

but of course I don't want to create a mess when I forget to set the read = true....
doesn't seem to fit so I will use XPath...

Christian Graus16-Jan-07 14:57

16-Jan-07 14:57

The core issue is that you don't have a defined schema. It would be better if you did.

Christian Graus - C++ MVP

'Why don't we jump on a fad that hasn't already been widely discredited ?' - Dilbert

Patrick Klug16-Jan-07 15:15

16-Jan-07 15:15

I understand. Just a question on that topic.

If I have a defined schema, does this mean that those tags have to be in the same order all the time.
I always thought that it is 'correct' to place tags in any order in the file.

Christian Graus16-Jan-07 16:32

16-Jan-07 16:32

No, a schema defines the order as well.

Christian Graus - C++ MVP

'Why don't we jump on a fad that hasn't already been widely discredited ?' - Dilbert

Patrick Klug16-Jan-07 17:02

16-Jan-07 17:02

hmm, alright, probably I am not understanding that so well after all D'Oh! | :doh:

how exactly would it help me, if I had a schema...

btw. thanks for your time

Christian Graus16-Jan-07 19:42

C# UI Control to crop images

16-Jan-07 19:42

It wouldn't, directly, unless you needed to validate the documents coming in. But, it's very uncommon for a program to not care what order the nodes are in, or expect them to differ.

Christian Graus - C++ MVP

'Why don't we jump on a fad that hasn't already been widely discredited ?' - Dilbert

GDI+ Question

Mike Hankey16-Jan-07 12:30

Mike Hankey

16-Jan-07 12:30

I have two objects that I'm drawing to the screen each is drawn in its own graphics context. I set region, clipping region, etc.. appropriately.
My question is this if I want to do a hit test, combine the two regions or whatever how do I/do I have to save the context and restore it and if so how????
I'm real confused???????

Thanks for any help
Mike Confused | :confused:

Theres light at the end of the tunnel, hope it ain't no train.

Printing

Christopher Thornburg16-Jan-07 11:39

Christopher Thornburg

16-Jan-07 11:39

I am new to .net and C# programming and I am writing a POS type of application that prints a receipt to a small receipt printer. I am having some problems understanding how to format my report for this little printer. It will work in a laserjet on a full sheet, but it won't print on the receipt printer. This is making me crazy!!! Anyway if anyone has any ideas I am so in need of help.

Thanks!!!

D'Oh! | :doh:

Christopher J. Thornburg
Senior Systems Analyst
Ideal Card

Re: Printing

gnadeem16-Jan-07 13:00

gnadeem

16-Jan-07 13:00

hi,

for POS applications , normally APIs are available like OPOS. which provide methods for primitive printing tasks. for direct printing to a printing device using serial cable , u still can use OPOS standard. u will have to use special characters at begining and end of , for instance , a string to print it. in both cases, you will have to build a string that you want to print and send to printer (like a batch printing pattern). i dont think u its going to be like windows standard printing (i.e on A4 printer).
have a look here for more info
http://monroecs.com/posstandards.htm[^]

regards.

njoaopg16-Jan-07 11:22

njoaopg

16-Jan-07 11:22

I'm need to have a control at my c# app that enables the user to crop a picture. I was looking for something like the way it is done when you use a scanner at windows XP(WIA).
Will I have to code it myself or is something allready done for that?

Nuno
--You can't make a program without broken egos--

Christian Graus16-Jan-07 13:03

16-Jan-07 13:03

It's a pretty easy thing to write. Just capture the users click events to draw the crop area, and then create the new bitmap.

Christian Graus - C++ MVP

'Why don't we jump on a fad that hasn't already been widely discredited ?' - Dilbert

electriac16-Jan-07 23:58

electriac

16-Jan-07 23:58

I would imagine that you have to redraw a rectangle in between mouse down and up. I would really like to see some working source code for this. Do you know where to find such a thing.

Christian Graus17-Jan-07 0:01

17-Jan-07 0:01

Yes, you'd handle MouseMove, and call Invalidate, and then draw the rect in your paint method.

Not sure off hand of any samples in C#.

Christian Graus - C++ MVP

'Why don't we jump on a fad that hasn't already been widely discredited ?' - Dilbert