DataSets and Crystal Reports 9 - C# Discussion Boards

Re: When do we program in assembly?

31-Aug-03 6:51

STORE 0
STORE i have no idea
STORE i have no idea
STORE never
JUMP  loop

loop: 
DUP
JUMPNE exit
CALL  answer

exit:
POP
EXIT

leppie ::AllocCPArticle("Zee blog");

Daniel Turini1-Sep-03 5:12

Daniel Turini

1-Sep-03 5:12

Today, almost never. Some common situations which still require ASM programming:
1. Kernel-level coding. You can be implementing a driver, a new kernel function (probably in Linux, otherwise you would be working at MS), or some low level functionality.
2. Compiler creation. Compilers (and sometimes linkers) output ASM code, so, normally you need to code the ASM generation part.
3. Self-modifying code. For high performance, virtual machines or even copy protection schemes.
4. MMX, 3DNow, SSE and SSE2 extensions: sometimes, compilers take years to catch up with processor advances. Some instructions, e.g., multimedia and game extensions were only available as ASM instructions for C++ programmers.
5. Embedded code. Today you have software on almost anything, from microwaves to your computer's video monitor. Obviously Visual C++ is not available for this kind of processor, which run on a very constrained environment, with low memory and CPU power conditions. Every byte increases the product's final cost.
6. High performance applications. Games, libraries, etc. Hand-made ASM code is still much more efficient than code generated by a compiler. But it doesn't scale well. So, often you get some tight loops or some small functions of a library (normally selected with a code profiler) and code it in ASM to increase performance.

You can do it on anything you choose - from .bat to .net - A customer

Re: When do we program in assembly?

devvvy1-Sep-03 6:13

devvvy

1-Sep-03 6:13

can you elaborate a little more on the following? i thought we do games using DirectX/OpenGL.. for the graphics (which are C/C++/COM libraries). Everything else in C/C++ and mostly WIN32 API?

Daniel Turini wrote:
multimedia and game extensions were only available as ASM instructions for C++ programmers

Daniel Turini wrote:
Games, libraries, etc. Hand-made ASM code is still much more efficient than code generated by a compiler. But it doesn't scale well. So, often you get some tight loops or some small functions of a library (normally selected with a code profiler) and code it in ASM to increase performance.

norm

DataSets and Crystal Reports 9

Member 4863931-Aug-03 2:01

Member 48639

31-Aug-03 2:01

Ladies 'n Gentlemen,

i try to change the DataSets programmatically to a Crystal Report. I set the source with the SetDataSource-method of the CrystalReportViewer.
First at all, i had made a blank report with CR 9 and implements it to my c# project.
My problem now is that the setting of the Dataset takes no effect. Only if I set the datasource in the c# report designer, i can display my chosen information from the table. But therefore I don't need to set any Dataset in my code. If I remove the Datasource in the designer and try to bind the report to a dataset, there is an error such as "no field in formula".
My Dataset is filled (i've tested it). And i don't work with crystal reports for VS .NET 2003 which came up with the VS 2003.

My steps:
1. a blank report (with CR 9) and a windows application project
2. implementing the report in the project
3. filling a dataset with a table from a MS SQL Server (for testing i#ve taken the "pubs" database)
4. load the report soure file to my ReportDocument-instance
5. set unbound fields in my report
6. SetDataSource-method to my loaded report document
7. Set ReportSource to the CrystalReportviewer in my code

That all works fine, but it seems that at runtime the report got no Datasource. Any suggestions? Would be very great.

CsharpThomas alias T. LaBenche

Tom La Benche

Re: DataSets and Crystal Reports 9

Member 486393-Sep-03 0:44

Member 48639

3-Sep-03 0:44

Got the answer. You neccessarily need a schema file, and bind it to the report in the report designer.
Then you have to fill the dataset.

TcpServerChannel

Anonymous31-Aug-03 0:57

Anonymous

31-Aug-03 0:57

Hi there,

I have to create my channels like this:

BinaryServerFormatterSinkProvider provider = new BinaryServerFormatterSinkProvider();

provider.TypeFilterLevel = TypeFilterLevel.Full;
IDictionary props = new Hashtable();

props["port"] = 8000;
chan = new TcpChannel(props, null, provider);

ChannelServices.RegisterChannel(chan);

RemotingConfiguration.RegisterWellKnownServiceType(typeof (BankDetailsClassLibrary), "RemoteClass", WellKnownObjectMode.Singleton);

in order to pass objects properly.

How can I create the same stuff for a TcpServerChannel

TcpServerChannel tcp = new TcpServerChannel(props, null, provider)

does not work.

Thanks a lot for your help

Chris

Re: TcpServerChannel

leppie31-Aug-03 4:31

Splitting a string constant over multiple lines

31-Aug-03 4:31

That must be in the server's config file AFAIK.

leppie ::AllocCPArticle("Zee blog");

Luca Leonardo Scorcia30-Aug-03 21:38

Luca Leonardo Scorcia

30-Aug-03 21:38

Is it possible, in C#, to code a string constant using more than one source line? Something like this:

output.Write("<table class=\"MenuTable\" width=\"{0}\" border=0"
	"cellpadding=2 cellspacing=0>", width);

Thanks in advance.

Luca Leonardo Scorcia
http://zip.to/kojak (only in Italian)

Re: Splitting a string constant over multiple lines

Jim Stewart30-Aug-03 21:55

Jim Stewart

30-Aug-03 21:55

Of course:

output.Write("<table class=\"MenuTable\" width=\"{0}\" border=0" + // add the +
"cellpadding=2 cellspacing=0>", width);

α.γεεκ

Fortune passes everywhere.
Duke Leto Atreides

Re: Splitting a string constant over multiple lines

Luca Leonardo Scorcia30-Aug-03 21:59

Luca Leonardo Scorcia

30-Aug-03 21:59

Thank you

Luca Leonardo Scorcia
http://zip.to/kojak (only in Italian)

Re: Splitting a string constant over multiple lines

leppie30-Aug-03 22:06

Re: Splitting a string constant over multiple lines

30-Aug-03 22:06

Luca Leonardo Scorcia wrote:
output.Write("", width);

output.Write( <big>@</big>"<table class=""MenuTable"" width=""{0}"" border=""0"" cellpadding=2 cellspacing=0>" , width);

leppie ::AllocCPArticle("Zee blog");

Daniel Turini1-Sep-03 5:18

Daniel Turini

1-Sep-03 5:18

leppie wrote:
output.Write(@"", width);
I always found this style particularly ugly, specially when you consider that the code in questions would have some identation.

You can do it on anything you choose - from .bat to .net - A customer

Windows Service Deployment

Tatham30-Aug-03 18:41

Re: Windows Service Deployment

30-Aug-03 18:41

I have just finished a windows service app in C#.

To deploy, I have created an installer project in VS (2003). For the service registrations, I have added the assembly as a custom action for both the commit and uninstall phases.

The installer seemes to run correctly - until the very end. Then I get the following error message Confused | :confused:

:

Could not find file "C:\Program Files\play47\SMTP Server\SMTPServer.InstallState

Now, this file DOESN'T exist - but I assume that it should be getting created by the service installer.

Any ideas? This is critical and I really need to deploy it today - if you have any idea it would be greatly appreciated!

Tatham Oddie (VB.NET/C#/ASP.NET/VB6/ASP/JavaScript)
tatham@e-oddie.com
+61 414 275 989

leppie30-Aug-03 22:09

Re: Windows Service Deployment

30-Aug-03 22:09

Tatham wrote:
if you have any idea it would be greatly appreciated

No idea sorry, but I'm sure you have learnt a valuable lesson, to plan these things in the design phase. Smile | :)

leppie ::AllocCPArticle("Zee blog");

Tatham31-Aug-03 15:31

31-Aug-03 15:31

I ended up finding the problem. After removing the performance counter object from the installer it worked - of course the counter doesn't work but at least it deployed.

Does anyone have any ideas on why this would crash the installer - do i need to ship some form of basic install state file - if so what is the format?

BTW leppie - i did deploy it in time. Poke tongue | ;-P

Encoding Style of a File

Mehmet Cortuk30-Aug-03 17:37

Mehmet Cortuk

30-Aug-03 17:37

Hi,

How can i get Encodingstyle of a file? And than i want to convert this file into Ascii or another.

Thanks...

ASC() in C#

econner30-Aug-03 11:20

econner

30-Aug-03 11:20

Hello,

I am looking for the C# equiv of the VB ASC() function. I also believe some of my chars are extended chars above 127.

I tried i = Convert.ToInt32('???') but this doesnt seem to work on extended chars.

Meysam Mahfouzi30-Aug-03 17:49

Meysam Mahfouzi

30-Aug-03 17:49

You can have access to every VB.Net function by just adding a referece to visulbasic.dll or visulbasicruntime(or some thing like this, I don't remember!) and using it in your code.

Don't forget, that's

Persian Gulf

not Arabian gulf!

Tatham30-Aug-03 18:43

30-Aug-03 18:43

You should just be able to do this:

<br />
char myCharacter = 'a';<br />
int myASC = (int)myCharacter;<br />

Tatham Oddie (VB.NET/C#/ASP.NET/VB6/ASP/JavaScript)
tatham@e-oddie.com
+61 414 275 989

Bo Hunter31-Aug-03 11:17

Bo Hunter

31-Aug-03 11:17

No you can not. Only for basic characters.

Bo Hunter

<marquee behavior="alternate">

Bo Hunter

Tatham2-Sep-03 21:51