C# Discussion Boards - CodeProject

Colin Angus Mackay2-Feb-04 1:36

2-Feb-04 1:36

Wait for the next version of C# which includes generics (C# equiv. of templates)... I can hardly contain myself. That is one of the things I miss from C++.

--Colin Mackay--

EuroCPian Spring 2004 Get Together[^]
"You can have everything in life you want if you will just help enough other people get what they want." --Zig Ziglar

Re: C# Standard Template Library

TeamWild2-Feb-04 2:00

TeamWild

2-Feb-04 2:00

Thanks for the quick response.

Any idea when C#2.0 is due to be released?

Re: C# Standard Template Library

Colin Angus Mackay2-Feb-04 2:35

Colin Angus Mackay

2-Feb-04 2:35

Microsoft are saying this year. But in reality it may be 2005.

http://msdn.microsoft.com/vstudio/productinfo/roadmap.aspx[^]

--Colin Mackay--

EuroCPian Spring 2004 Get Together[^]
"You can have everything in life you want if you will just help enough other people get what they want." --Zig Ziglar

Re: C# Standard Template Library

Judah Gabriel Himango2-Feb-04 8:25

Judah Gabriel Himango

2-Feb-04 8:25

Colin Angus Mackay wrote:
Wait for the next version of C# which includes generics (C# equiv. of templates)... I can hardly contain myself. That is one of the things I miss from C++.

Yeah me too. Actually, C# generics should be an improvement over our C++ templates; templates are nothing but "exalted macros" as I once read, with the compiler swapping values in at compile time. C# generics will have a JIT'd version of the actual generic code you write, and reuse that JIT'd code across all the types of that generic class.

Fun fun fun stuff. I just hope it will be released in the spring or summer this year. Smile | :)

The graveyards are filled with indispensible men.

Re: C# Standard Template Library

Nemanja Trifunovic2-Feb-04 12:07

Nemanja Trifunovic

2-Feb-04 12:07

Judah H. wrote:
Actually, C# generics should be an improvement over our C++ templates; templates are nothing but "exalted macros"

Not really.[^]

Re: C# Standard Template Library

Heath Stewart2-Feb-04 3:04

Heath Stewart

2-Feb-04 3:04

You can always use a generic collection or list class like ArrayList. It won't give you strongly-typed params (also, C# isn't strongly-typed, .NET is), but .NET is a true object-oriented framework and adding, for example, a Control to an ArrayList (which accepts Objects) is still a Control in the list. GetType (inheritted from Object) will always return the right Type.

I realize this is probably not what you want and as Colin said, .NET 2.0 (due to release in late 2004 I would imagine, since the end of the year was the release date for 1.0 and 1.1) will include generics. I just wanted to point out that you don't need to worry about using appropriately Typed parameters. After all, when you extend the CollectionBase class and use either List or InnerList (and if you don't, then don't waste time by deriving from CollectionBase), both of those are an instance of the same ArrayList.

Microsoft MVP, Visual C#
My Articles

Re: C# Standard Template Library

boogs2-Feb-04 9:01

boogs

2-Feb-04 9:01

You can also use Chris Sells' excellent CollectionGen in the meantime.

http://www.sellsbrothers.com/tools/#collectiongen

Clickety

Colin Angus Mackay2-Feb-04 11:57

Colin Angus Mackay

2-Feb-04 11:57

http://www.sellsbrothers.com/tools/#collectiongen [^]

--Colin Mackay--

EuroCPian Spring 2004 Get Together[^]
"You can have everything in life you want if you will just help enough other people get what they want." --Zig Ziglar

Buttons in DataGrid

Lyubomir Naydenov2-Feb-04 0:39

Lyubomir Naydenov

2-Feb-04 0:39

Hi,
my question is how I can make DataGrid whit Button in his title.
for example I want DataGrid whit print button.
I'm ready whit printing part but only a button misсing Smile | :)

thank's.

Re: Buttons in DataGrid

Mazdak2-Feb-04 0:50

Mazdak

2-Feb-04 0:50

You can create a windows control and put a button+datagrid in it or subclass datagrid or datagridcolumn and start from there.

Mazy

"Art is life, life is life, but to lead life artistically is the art of life." Peter Altenberg

Re: Buttons in DataGrid

Heath Stewart2-Feb-04 3:20

Heath Stewart

2-Feb-04 3:20

The easiest way is to extend DataGridColumnStyle like the DataGridTextBoxColumn and the DataGridBoolColumn that are provided by the base class library.

For more information about the abstract DataGridColumnStyle class, see http://msdn.microsoft.com/library/en-us/cpref/html/frlrfsystemwindowsformsdatagridcolumnstyleclasstopic.asp[^]. For an example of creating your own derivative class, see http://msdn.microsoft.com/msdnmag/issues/03/08/DataGrids/[^].

Microsoft MVP, Visual C#
My Articles

Re: Buttons in DataGrid

Lyubomir Naydenov2-Feb-04 9:42

Lyubomir Naydenov

2-Feb-04 9:42

I dont want make DataGridColumnStyle whit buttons.
I want insert button in Caption on DataGrid.
Or mayby I have to make mine control DataGrid+Button //but I dont prefer it. Sigh | :sigh:

Easy URL Query parsing?

3ddA2-Feb-04 0:08

3ddA

2-Feb-04 0:08

Is there any build in functionality to parse standard query string like this:
string1=hello+dear+friend%21&string2=otherdata+here+%25%26

Anything in the framework?

If not I'll write it, should I put it here as an article?

Re: Easy URL Query parsing?

Heath Stewart2-Feb-04 3:27

Heath Stewart

2-Feb-04 3:27

If you're trying to parse the query string from an ASP.NET page (like an .aspx file), you can use Request.QueryString or Request.Params (combination of POST and GET variables). When getting the value from the parameter dictionary, the values are automatically decoded.

Otherwise, there is many ways this can be parsed, like using String.Split with the &, the doing the same to split the key/value pairs using the = character. The HttpUtility class has both a UrlDecode and UrlEncode method, both overloaded.

Microsoft MVP, Visual C#
My Articles

Re: Easy URL Query parsing?

3ddA2-Feb-04 6:55

3ddA

2-Feb-04 6:55

Thanx for the tip, but unfortunatly "UrlDecode" didn't work ok with some national characters like 'Ö'. So I wrote my own, and it works ok, using Uri.HexDecode.

Launching mail client, open new message and add attachments

jewlin1-Feb-04 23:29

jewlin

1-Feb-04 23:29

The problem is simple:

I need to launch the default mail client (mailto: won't help here), open a new message and add some attachments to it. I need to do the same as when the user right-clicks a file and selects "Send to->Mail recipient". I need a solution that works for all mail clients and not just Outlook... and I need it quickly

Re: Launching mail client, open new message and add attachments

Heath Stewart2-Feb-04 3:31

Heath Stewart

2-Feb-04 3:31

You'll need to use MAPI, which is limited to MAPI clients (which is any decent mail reader like Outlook, Outlook Express, Mozilla Mail, Thunderbird, Eudora, etc.).

There's plenty of resources available on the Internet that discuss MAPI in about any language you want (including C#). There is even a decent one on this site at http://www.codeproject.com/csharp/simplemapidotnet.asp[^], along with a library and source.

More information about MAPI can be found in MSDN at http://msdn.microsoft.com/library/en-us/exchanchor/htms/msexchsvr_mapi.asp[^].

Microsoft MVP, Visual C#
My Articles

Re: Launching mail client, open new message and add attachments

jewlin2-Feb-04 4:48

jewlin

2-Feb-04 4:48

Thanks, but your solution is not the answer which I wished.

Re: Launching mail client, open new message and add attachments

Heath Stewart2-Feb-04 5:36

Heath Stewart

2-Feb-04 5:36

This is what the items in the Send To menus of most application work. It uses MAPI, and that's the only way to talk to multiple mail clients because it's a set of interfaces (contracts) by which supporting clients communicate. If his solution isn't what you want, then read about MAPI and implement your own solution, but you won't find another abstract way; MAPI is the abstract API that Microsoft developed for this very purpose.

Microsoft MVP, Visual C#
My Articles

Lets start with serious things...

bouli1-Feb-04 23:22

bouli

1-Feb-04 23:22

Hi there,

I have started to learn C# last week for a project. I'm starting to get the philosophy of the language. It's not so hard.

I have a project to design that will run Excel 2003.

I have installed the Office 2003 extensions for VS .NET 2003.

For my project, I want to use the following Excel 2003 functionnalities:
- read/write Excel files (worksheets and workbooks) and also use the file import manager (for reading formatted text files, like excel does)
- Input data in a sheet (from a grid in the application)
- insert and retrieve data in sheets (to display them in a grid in the app)
- use Excel 2003 statistical functions
- display an Excel 2003 chart (this chart is calculated by excel, and the application displays the result in a dialog box for example)
- communicate with Excel WITHOUT the fact that excel is running

I wanna do all of these in a stand alone application while Office 2003 will be installed on the target machine.

This application won't RUN Excel!!! It will USE it!

I see that Excel 2003 can be accessed via C#.

Can any one tell me if it's possible to do these things?
And also, can you show me where I can get links with sample code to do basic calls to Excel 2003 functionalities and retrive the results via C#? Confused | :confused:

Thanks to all.

Best regards.

Re: Lets start with serious things...

Michael P Butler1-Feb-04 23:46

Michael P Butler

1-Feb-04 23:46

bouli wrote:
And also, can you show me where I can get links with sample code to do basic calls to Excel 2003 functionalities and retrive the results via C#?

Have a read of

http://support.microsoft.com/default.aspx?kbid=302084[^]

http://support.microsoft.com/default.aspx?scid=kb;en-us;302096[^]

and

http://support.microsoft.com/default.aspx?scid=kb;en-us;823981[^]

Michael

But you know when the truth is told,
That you can get what you want or you can just get old,
Your're going to kick off before you even get halfway through.
When will you realise... Vienna waits for you? - "The Stranger," Billy Joel

Add files to media player

Fleischen1-Feb-04 23:21

Fleischen

1-Feb-04 23:21

I'm trying to create my own "mp3 player" i c# using the Windows media player 9 control.

1. How do I create a playlist and add files to them?
2. How do you use the EndOfStream event?

/fleischen

Re: Add files to media player

Fleischen2-Feb-04 3:29

Fleischen

2-Feb-04 3:29

I'm using Windows media player series 9

Opengl & C#

islheg1-Feb-04 22:29

islheg

1-Feb-04 22:29

Dear all,

How can I use OpenGL in C#?

Islam Hegazy

Re: Opengl & C#

Mazdak1-Feb-04 22:55

Mazdak

1-Feb-04 22:55

http://csgl.sourceforge.net/[^]

Mazy

"A useless but amusing fact is that if all the DNA in all the cells in a single human being were stretched out it would reach the moon and back eight thousand times." - Steve Jones

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