C# Discussion Boards - CodeProject

29-Sep-15 3:09

I have this C++ code for setting timeouts on serial port

C++

COMMTIMEOUTS *timeouts = new COMMTIMEOUTS ;
memset(timeouts, 0, sizeof(COMMTIMEOUTS)) ;
timeouts->ReadIntervalTimeout          = ReadIntervalTimeout ;
timeouts->ReadTotalTimeoutMultiplier   = 5 ;
timeouts->ReadTotalTimeoutConstant     = readTimeOut ; //...
timeouts->WriteTotalTimeoutConstant    = 0 ; //
timeouts->WriteTotalTimeoutMultiplier  = 2*BaudRate/8 ;
const bool ret = SetCommTimeouts(*hDev, timeouts) != FALSE ;
delete timeouts ;
m_currentTimeOut = readTimeOut ;

I need to rewrite this in C#. For SerialPort class I found these properties:

C++

_serialPort.ReadTimeout = 500;
_serialPort.WriteTimeout = 500;

Are they equivalent? It seems there are more parameters in play in the C++ code. How can I approach this? Or maybe other parameters are not needed? What is the best way to transform that C++ code to C#?

ZurdoDev29-Sep-15 4:23

29-Sep-15 4:23

Yes, I believe you are correct. See https://msdn.microsoft.com/en-us/library/system.io.ports.serialport(v=vs.110).aspx[^] for the SerialPort class. And yes, C# will be easier than C++, that is intentional.

There are only 10 types of people in the world, those who understand binary and those who don't.

Member 1206160029-Sep-15 4:25

29-Sep-15 4:25

Not really, see on C++ there are more parameters about time out whereas on C# there is only 2. So it means I can't do exact mapping...?

ZurdoDev29-Sep-15 4:47

29-Sep-15 4:47

user20044 wrote:
whereas on C# there is only 2.

Yes exactly, C# is a much easier language than C++ and is a high level language; whereas, C++ is a low-level language. C++ will likely always give equal to or greater control to the developer.

There are only 10 types of people in the world, those who understand binary and those who don't.

Member 1206160029-Sep-15 4:59

29-Sep-15 4:59

I think we don't understand each other. Please see here: http://stackoverflow.com/questions/32844940/rewrite-serial-communication-on-c-sharp[^], I asked similar question. My problem is I have C++ code which establishes serial communication and I need to rewrite this to C#.
Which approach should I take? If I take SerialPort, it seems I can't duplicate and tune all the parameters which C++ structures allow like DCB.
Should I take Pinvoke way (http://forums.codeguru.com/showthread.php?182234-serial-ports-C[^]) instead - and make 100% duplicate? Is that necessary?

ZurdoDev29-Sep-15 5:07

29-Sep-15 5:07

user20044 wrote:
and I need to rewrite this to C#.

Yes, I understand that. And I'm telling you that C# does not expose all the same features that you can access in C++. So, either do it in C++ with the code you have or write it in C# and let the OS handle some of those properties for you that C++ does allow you to set.

There are only 10 types of people in the world, those who understand binary and those who don't.

Member 1206160029-Sep-15 5:54

29-Sep-15 5:54

In C# you mean to write it using SerialPort class and see if it works?

And if not, then try Pinvoke calls and duplicate the C++ code? (as in here for example? http://forums.codeguru.com/showthread.php?182234-serial-ports-C[^])

ZurdoDev29-Sep-15 5:55

29-Sep-15 5:55

It all depends on what you are doing and what environment it is. If this is a windows application also written in C#, then yes, use the C#.

There are only 10 types of people in the world, those who understand binary and those who don't.

Member 1206160029-Sep-15 6:25

how send *.xlsx file as an attachment?

29-Sep-15 6:25

Original application is written in C++ (see for more code on the other question I linked above), and I need to rewrite to C#

Member 1162226629-Sep-15 1:33

Member 11622266

29-Sep-15 1:33

Hi

I am new to C#, I wrote a code to prepare a *.xlsx file now I need to attach that file as an email attachment and send, but by doing that Thae mail body contains some junk data and also it is not giving any exceptions to catch.

Please help

Re: how send *.xlsx file as an attachment?

Dave Kreskowiak29-Sep-15 1:50

Dave Kreskowiak

29-Sep-15 1:50

Help with what? You haven't shown us the code that builds the email message so it's pretty much impossible to tell you what you did wrong.

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Click this: Asking questions is a skill.
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Dave Kreskowiak

Re: how send *.xlsx file as an attachment?

Richard Deeming29-Sep-15 2:20

Richard Deeming

29-Sep-15 2:20

You could have found the answer yourself if you'd done any research at all! D'Oh! | :doh:

How do I send an email with attachments?[^]
How do I create an attachment from a stream?[^]

"These people looked deep within my soul and assigned me a number based on the order in which I joined."
- Homer

Message Closed

29-Sep-15 2:49

Member 11622266

29-Sep-15 2:49

Message Closed

modified 29-Sep-15 9:30am.

Tileview Gridcontrol

Member 1201862629-Sep-15 0:32

Member 12018626

29-Sep-15 0:32

Hello!

i am working on Point of sale project. i am using devexpress for tile view in winform. how to create a dynamic Tile view and on click event i want to send category id and want to get the subcategory data. i tried alot but couldn't find any good solution.

PLEASE guide me SO I CAN MOVE FORWARD.

Thanks

Re: Tileview Gridcontrol

CHill6029-Sep-15 0:58

CHill60

29-Sep-15 0:58

Please read this post[^] then edit your question to provide more detail.

[EDIT - Note that I have suggested that you edit this post. Do not repost the same question yet again - see your earlier post[^]

This is twice you have been advised to post more detail. Help us to help you

Open Source PDF VIewer in Winform

Anthony Fernando28-Sep-15 21:20

28-Sep-15 21:20

Hi ,
i am creating pdf using iTextsharp dll , now i want some free/open source dll which will be a control to view the pdf in winform . I dont want any com component or webbrowser control to view . i need no dependencies too. I am finding it very challenging, can any help me with my RnD ?

Richard MacCutchan28-Sep-15 21:34

Richard MacCutchan

28-Sep-15 21:34

Anthony Fernando wrote:
i want some free/open source dll

Then you need to post your requirements to Google.

Anthony Fernando28-Sep-15 21:55

28-Sep-15 21:55

Thanks for your concern

Pete O'Hanlon28-Sep-15 21:35

Pete O'Hanlon

28-Sep-15 21:35

Well, if you don't want any dependencies, you're going to have to rely on writing your own. There is a PDF specification but it's not a trivial thing to read, or implement. This article[^] shows you how many libraries you are going to have to replicate parts of.

Anthony Fernando28-Sep-15 21:53

28-Sep-15 21:53

Hi Pete ,
I have seen that article.
what are the other ways to view pdf document ?
PDFviewer or Adobe reader can be used from component but i dont want to use that.
Is there any other dll which will allow me to display pdf in winform ?

Garth J Lancaster28-Sep-15 21:36

Garth J Lancaster

28-Sep-15 21:36

Anthony Fernando wrote:
i need no dependencies too

'good luck'

The best I can suggest if your documents are less than 10 pages is http://www.e-iceblue.com/Introduce/free-pdf-viewer-net.html#.Vgo_KKTos_I[^]

Anthony Fernando28-Sep-15 21:54

28-Sep-15 21:54

Hi Garth
Do you SPire.PDFViewer dll will allow me to display pdf while which will contain on 10 Pages?

Garth J Lancaster28-Sep-15 23:42

Garth J Lancaster

28-Sep-15 23:42

from their web page "Free version is limited to 10 pages of PDF when viewing and printing PDF files."

Richard Deeming29-Sep-15 2:18

Richard Deeming

29-Sep-15 2:18

That's a limited version of a commercial control which regularly appears in spam messages in these forums and QA. I'm surprised your message made it through the spam filter. Unsure | :~

"These people looked deep within my soul and assigned me a number based on the order in which I joined."
- Homer