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Re: C# vs VB

Mark Salsbery3-Nov-09 10:41

Mark Salsbery

3-Nov-09 10:41

Member 4487083 wrote:
do you think it's reasonable for me to dislike VB?

If not, then apparently I'm unreasonable too Smile | :)

I don't like it at all, but I haven't tried it, and I
come from many many years of C/C++ so C# is natural to me.

Mark Salsbery
Microsoft MVP - Visual C++
Java | [Coffee]

Re: C# vs VB

Luc Pattyn3-Nov-09 13:41

Luc Pattyn

3-Nov-09 13:41

Member 4487083 wrote:
do you think it's reasonable for me to dislike VB?

yeah, it is very reasonable. Don't hesitate, go for the real language.

BTW: there are some options that are off by default, if you insist on using VB.NET, turn them on (e.g. Option Strict[^]).

Smile | :)

Luc Pattyn

I only read code that is properly indented, and rendered in a non-proportional font; hint: use PRE tags in forum messages

Re: C# vs VB

Not Active3-Nov-09 14:49

Not Active

3-Nov-09 14:49

The main option to turn off is when installing Visual Studio. Uncheck the VB.NET box Poke tongue | ;-P

I know the language. I've read a book. - _Madmatt

Re: C# vs VB

Shameel4-Nov-09 0:44

Shameel

4-Nov-09 0:44

Each language has its own lovers and haters, so does VB. I had been programming in VB for more than 6 years when I changed to C#.

But history tells us that VB is the language that has the shortest learning curve.

And there are certain features that VB.NET provides out-of-the-box that C# cannot do "neatly", for example, single instance desktop applications.

Re: C# vs VB

Simon P Stevens4-Nov-09 3:28

Simon P Stevens

4-Nov-09 3:28

Shameel wrote:
there are certain features that VB.NET provides out-of-the-box that C# cannot do "neatly", for example, single instance desktop applications.

I don't see what isn't neat about this: http://www.ai.uga.edu/mc/SingleInstance.html[^].

Just because C# doesn't provide tick box for it doesn't mean you can't do it.

The choice in language is entirely down to personal preference, there is no significant technical difference.

Simon

Re: C# vs VB

Shameel4-Nov-09 20:15

Shameel

4-Nov-09 20:15

I you had ever tried one of those solutions, you would realize that all those articles on the internet that teach how to create a single instance desktop application in C# just try to find out if the app is already running and then display a message box that reads "App is already running". I am yet to read any article that teaches how to "neatly" activate the already running instance (without using Microsoft.VisualBasic namespace and AppActivate method). I tried using Win API and P/Invoke but no luck Frown | :-(

Re: C# vs VB

Simon P Stevens4-Nov-09 1:51

Simon P Stevens

4-Nov-09 1:51

Member 4487083 wrote:
weak typing

VB.net is not weak typed. It is strongly typed just like C#.

However, the vb.net compiler does not enforce strict type conversions at compile time in the way the C# compiler does. This means that you are able to directly place an Int in a String object and VB will automatically apply the type conversion. It's still strongly typed, the type is still a String, and the int being placed into it will be cast to a String, it's just casts can happen implicitly.

You can use the Option Strict[^] setting to change this behaviour and make the compiler act more like the C# one.

Either way, the coder is still free to ignore type usage (equally as they could in C# by declaring everything to be an Object).

In terms of the language, both are equally capable and equally well supported. The language choice is almost entirely down to personal preference. There is no really significant technical difference between the two.

All that said, I personally prefer C# too.

Simon

Re: C# vs VB

Kevin McFarlane4-Nov-09 8:06

Kevin McFarlane

4-Nov-09 8:06

Simon Stevens wrote:
There is no really significant technical difference between the two.

IDE editor support is better in C# IMO but that's a usability rather than a technical difference.

The Option Strict off by default was a really lousy decision. I've been bitten by this numerous times when working on VB projects.

Kevin

Re: C# vs VB

Eddy Vluggen5-Nov-09 9:13

Eddy Vluggen

5-Nov-09 9:13

Member 4487083 wrote:
I'm should there will be lots of opinions, but do you think it's reasonable for me to dislike VB?

Other people don't like VB.NET, C# or C++, and opt for Python, Ruby or even Pascal[^].

So you're not so sharp on VB. The *cool* news here is that you can team up with a VB.NET programmer, even if he/she isn't too keen on C# - you can both write your .NET classes in your own language Smile | :)

I are Troll Suspicious | :suss:

Metafile: BUG in PlayRecord???? EnumerateMetafile VS Drawimage !!!!

2006 Flauzer3-Nov-09 3:20

2006 Flauzer

3-Nov-09 3:20

Hi, I hope to post in the right forum ..

I need to control and modify the drawing of a Windows Enhanced Metafile so, as a test, I
tried code from the following MSDN article.
http://msdn.microsoft.com/en-us/library/system.drawing.imaging.metafile.playrecord.aspx[^]
NOTE...All Platforms and Supported in: 3.5, 3.0, 2.0, 1.1, 1.0

Result: I have not done many tests but i can say: working in W2000, W2003 Smile | :)

, not in XP and Windows 7.... Mad | :mad:

Note: .NET 3.5sp1 in all update PC's

I've try with this simple file, a red rectangle with gradient,
http://rapidshare.com/files/301791141/rosso.emf[^]

and, for the lazy the whole small program...
http://rapidshare.com/files/301791802/WindowsFormsApplication2.zip[^]

Finally, if we use DrawImage instead of EnumerateMetafile, ...that's works fine!!!!!

(more in details e.Graphics.DrawImage(metafile, destPoint);)

Can you help me????

Astronomy class library

Ben Saucer2-Nov-09 9:09

Ben Saucer

2-Nov-09 9:09

Where can I find me a .Net class library for astronomy calculations? I'm looking for functions for calculating moon phases, sunrise, sunsets, transit, seasons, perihelion, aphelion, perigee, apogee, nodes, etc.

Re: Astronomy class library [modified]

DanDixonUS15-Dec-09 9:23

DanDixonUS

15-Dec-09 9:23

This may be exactly what you're looking for:
~~http://www.sergemeunier.com/blog/tutorials/astronomical-calculations-in-c-sharp/~~

Updated link 2011:
http://www.smokycogs.com/blog/tutorials/astronomical-calculations-in-c-sharp/[^]

The download is the non-obvious "here" link on the page that combines all of the sample code into a single app called Urania.

Once downloaded, you will also need to modify the Urania.sln file to fix the paths of the different libraries that he uses (MathLib, UraniaLib, etc.) and then it will compile correctly.
(open Urania.sld in notepad and delete: "..\Libs\" out of the 3 project paths)

modified on Tuesday, September 20, 2011 12:50 PM

Korean Localization problem

Oren Tasuna1-Nov-09 8:21

Oren Tasuna

1-Nov-09 8:21

Hi all,
I'm building a virtual keyboard in c#.
My problem is when I set the keyboard for korean input, I can't retrieve korean keyboard chars to display on my keyboard.
I use LoadKeyboardLayout API call to get the korean keyboard layout, and then I use ToUnicodeEx to get keyboard characters symbols. This doesn't work for korean characters. For other languages (such as german) this works fine.
What do I need to do in order to be able to retrieve korean characters?
Thanks...

help on software application for windows ce 5.0 based device

m_riz31-Oct-09 14:55

m_riz

31-Oct-09 14:55

Hi
i am developing an application which will run on Dolphin 6100 (A smart device running on windows CE 5.0).
this application is a windows CE 5.0 application, which will interact with SQL Server 2005 Express database(installed on database server accessible through wireless access pint) and do some stock updates.

I am currently working with VB 6.0 and do not have enough time to learn VB.NET . could any one please translate this little piece of VB 6.0 code into windows ce 5.0(visual studio 2005) code.

Dim cn As New ADODB.Connection
If cn.State = 1 Then cn.Close
cn.Open "connection string for SQL server 2005 express" ?????????
Dim rs As New ADODB.Recordset
If rs.State = 1 Then rs.Close
rs.Open "select field1,field2 from TStock", cn, 2, 3
rs![field1]=some thing
rs.update
rs.close
cn.close

Specially i need connection string to connect to SQL Server 2005 Express from my windows ce 5 based smart device.

thanks and regards.

Re: help on software application for windows ce 5.0 based device

Luc Pattyn31-Oct-09 15:19

Luc Pattyn

31-Oct-09 15:19

Hi,

connection strings need a server name; WinCE isn't any different in that.
For details see here[^].

Smile | :)

Luc Pattyn

I only read code that is properly indented, and rendered in a non-proportional font; hint: use PRE tags in forum messages

Re: help on software application for windows ce 5.0 based device

helloraza2-Nov-09 1:47

helloraza

2-Nov-09 1:47

Hi
thanks for reply.

i tried many connection strings from http://www.connectionstrings.com/[^] but no results.

actually i a confused about
1- which class i should use

SqlCeConnection or System.Data.SqlClient.SqlConnection

my situation is

i have SQL server 2005 express installed on a PC and i want to access that database from my windows ce 5.0 device through wireless connection.

i tried many connection strings but no one is working.

could you please tell me how to connect or which connection string i need to use?????????

thanks and regards.

riz

Re: help on software application for windows ce 5.0 based device

Luc Pattyn2-Nov-09 2:08

Luc Pattyn

2-Nov-09 2:08

I'm unfamiliar with WinCE.
Why don't you ask in the Database forum?

Smile | :)

Luc Pattyn

I only read code that is properly indented, and rendered in a non-proportional font; hint: use PRE tags in forum messages

Re: help on software application for windows ce 5.0 based device

Agrade2-Nov-09 18:12

Agrade

2-Nov-09 18:12

I have been testing something like this today:
This website says you can't do it this way:
http://www.wirelessdevnet.com/channels/pda/features/ado_ce.html[^]

ADOCE Specifications
The first thing you need to know about ADOCE is that it is a subset of ADO. This means there is only implementation of the Recordset and Field objects. No Command object, no Connection, no Error, no Property. It does, though, offer automatic two-way synchronization with the desktop, ANSI SQL support, and (generally) standard ADO compatibility. Armed with that information, let's see what we need to install to develop with ADOCE.

I am going back to reading a text file because I have that option ... Sigh | :sigh:

distinct and merageand Count

yodo30-Oct-09 22:59

yodo

30-Oct-09 22:59

hi All
Can any body help me?
I have like this DataTable in vb.net:

A | B | C
------------
DLL |1,2 | 2
------------
DLL |3,4 | 2
------------

How Can I merage this dataTable in vb.net to
distinct A and merage B and Count C

A | B | C
--------------
DLL |1,2,3,4 | 4

Re: distinct and merageand Count

Gideon Engelberth2-Nov-09 3:48

Gideon Engelberth

2-Nov-09 3:48

Probably the simplest way would be to create a Dictionary with field A as the keys and a class to hold the new row data (at least fields B and C, maybe A as well) as the values. Then you can iterate over all the current data and build the new rows in the Dictionary.

Intrumented versions of applications?

polomint30-Oct-09 6:56

polomint

30-Oct-09 6:56

Hi everyone,

A quick question if i may? I have been looking for a while for a way of logging all activity in my application by the user. I believe it is called instrumentation but I may be wrong. This is mainly so that when a user finds a problem with the software then I am able to playback exactly what they did. This will also allow me to see how the application is used by different users.
Does anyone know a way to do this? Links to further reading or maybe even links to software that I could use to do this would be appreciated.. In the meantime, I shall keep looking Smile | :)

Thanks again...

Oh oh...
Signed Polomint.......

Re: Intrumented versions of applications?

Not Active30-Oct-09 12:01

Not Active

30-Oct-09 12:01

Have a look here[^] to start with.

I know the language. I've read a book. - _Madmatt

Re: Intrumented versions of applications?

polomint30-Oct-09 12:19

polomint

30-Oct-09 12:19

Thanks, I'll take a look now...

Yippee Kai Yai
Signed Polomint.......

How do i interface with a mouse?

basilmir30-Oct-09 6:22

basilmir

30-Oct-09 6:22

Hello,

I have a small situation. Not quite a developer yet, so i need a top-down view from someone with experience.

I have a windows 7 box, and two mice connected to it, both using the windows default driver. As you can imagine they both work as a "mouse".

What do i have to do, to "manage" the input of the second mouse to make it do something else, not just mousing around? Use it's movement to map to keys, and so on and so forth.

Thank you in advance.

Re: How do i interface with a mouse?

Eddy Vluggen2-Nov-09 2:38

Eddy Vluggen

2-Nov-09 2:38

samoila.mircea wrote:
What do i have to do, to "manage" the input of the second mouse to make it do something else, not just mousing around? Use it's movement to map to keys, and so on and so forth.

Learn C and write your own driver. This ain't possible in .NET, AFAIK.

I are Troll Suspicious | :suss:

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