C# Discussion Boards - CodeProject

Re: I'm stuck in datagridview

11-Jul-08 1:37

I've created a datagridview which gets the data from a table whic has 3 columns engineID(Primary Key), engineName, and engineUrl.

what i want to do is i just want to get the engineUrl from the datagridview who's checkbox is selected and then store the engineUrl in a string variable... which i want to manipulate later.

Also if multiple checkbox is selected then all engineUrl field text should be stored in a variable string.

Paritosh Tripathi
B.Tech. (C.S.)

Vimalsoft(Pty) Ltd11-Jul-08 6:49

Vimalsoft(Pty) Ltd

11-Jul-08 6:49

lets see what have you done so far,
remember that we cannot do your job for you. show us your code and we will advice

Thanks

Vuyiswa Maseko,

Sorrow is Better than Laughter, it may Sadden your Face, but It sharpens your Understanding

VB.NET/SQL7/2000/2005
http://vuyiswamb.007ihost.com
http://Ecadre.007ihost.com
vuyiswam@tshwane.gov.za

[Message Deleted]

Technobizz11-Jul-08 1:29

11-Jul-08 1:29

[Message Deleted]

OK.

CPallini11-Jul-08 1:32

CPallini

11-Jul-08 1:32

OK. That's the wrong code. Now please post the working one.
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Re: OK.

Technobizz11-Jul-08 1:39

Is it possible to call VB 6 libraries in c# 2008?

11-Jul-08 1:39

thanx for the advice actually i did it by mistake i was entering something and entered the wrong thing

Paritosh Tripathi
B.Tech. (C.S.)

Re: OK.

CPallini11-Jul-08 1:53

CPallini

11-Jul-08 1:53

You may edit your OP, if you wish.
Smile | :)

elog vs wmi

Mogaambo11-Jul-08 0:23

Mogaambo

11-Jul-08 0:23

i am developing application which accesses all my lan machines and output their individual into the text files, but which method is good using Elog class or using wmi.or tell me is there any way to specify username and password in Elog class

Re: elog vs wmi

nadarajan.sathish15-Sep-09 0:30

nadarajan.sathish

15-Sep-09 0:30

Hi,

Using WMI is the easiest way to access the other machines and fetching the information in the LAN. So I would suggest to go with WMI.

Regards,
Sathish Nadarajan.

^1.21 Gigawatts10-Jul-08 23:36

^1.21 Gigawatts

10-Jul-08 23:36

Hi peeps

Does anyone know if I can call code created in VB 6 from C# 2008?

If so, what areas (or keywords) do I need to look up to reaserch this on?
Not quite sure what I should be typing into Google at the mo.

Thanks for any replies
-Dan
Smile | :)

Re: Is it possible to call VB 6 libraries in c# 2008?

Simon P Stevens10-Jul-08 23:46

Simon P Stevens

10-Jul-08 23:46

Daniel Fowler wrote:
Does anyone know if I can call code created in VB 6 from C# 2008?

Yes, you can.

Daniel Fowler wrote:
If so, what areas (or keywords) do I need to look up to reaserch this on?

VB6 dlls use COM. It's called COM interop.

Pretty much all you do is VS is add a reference, go to the COM tab, locate the library you want to use. VS will create an interop assembly. (You can look in this assembly to see the details of how the COM stuff is called, if you fancied doing it manually)

Simon

Re: Is it possible to call VB 6 libraries in c# 2008?

^1.21 Gigawatts10-Jul-08 23:52

^1.21 Gigawatts

10-Jul-08 23:52

Cheers mate, I'll get learning!!

Big Grin | :-D

How to Multiple Thread execute at Same Time(simultaneously) in c#. [modified]

bruze10-Jul-08 23:03

bruze

10-Jul-08 23:03

Can any one Help,

I have create Multiple Thread and Call the function in c#.
The Code as follows

using System;
using System.Threading;

namespace ThreadPool
{
   public class Program
    {
        static void Main(string[] args)
        {
            Program pa = new Program();

            Thread firstThread = new Thread(new ThreadStart(pa.Name));
            Thread secondThread = new Thread(new ThreadStart(pa.Name));
            Thread thirdThread = new Thread(new ThreadStart(pa.Name));
            Thread fourthThread = new Thread(new ThreadStart(pa.Name));
            Thread fifthThread = new Thread(new ThreadStart(pa.Name));

            firstThread.Start();
            secondThread.Start();
            thirdThread.Start();
            fourthThread.Start();
            fifthThread.Start();
            Console.ReadLine();
        }
        public void Name()
        {
            
            Console.WriteLine("My Name is Bruze" );
            
            Console.WriteLine("GO!!!!!");
        }
    }

The above code Multiple Thread (firstThread,secondThread,thirdThread,fifthThread,fifthThread) execute one by one.
I want Multiple Thread execute at Same Time(simultaneously) in c#.

modified on Friday, July 11, 2008 7:26 AM

Re: How to Multiple Thread Start at the Same Time in c#

N a v a n e e t h10-Jul-08 23:09

Re: How to Multiple Thread Start at the Same Time in c#

10-Jul-08 23:09

bruze wrote:
How to Multiple Thread Start at Same Time in c#.

You can't predict the order in which threads are executing.

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Mark Churchill11-Jul-08 1:02

Mark Churchill

11-Jul-08 1:02

Considering you can only run once thread at once per cpu, what do you expect to gain from starting multiple threads in one call? (Except code clarity I guess).

Mark Churchill
Director
Dunn & Churchill
Free Download:
Diamond Binding: The simple, powerful, reliable, and effective data layer toolkit for Visual Studio.

Re: How to Multiple Thread execute at Same Time(simultaneously) in c#.

Technobizz11-Jul-08 1:43

Re: How to Multiple Thread execute at Same Time(simultaneously) in c#.

11-Jul-08 1:43

Use backgroundworker so your threads will be working asynchronously with the UI thread. but only one thread will be executed in async mode also otherwise your application will affect the main UI thread resulting in hung up application.

Hope this helps
cheers

Paritosh Tripathi
B.Tech. (C.S.)

killabyte11-Jul-08 2:50

killabyte

11-Jul-08 2:50

http://www.freertos.org/[^]
or
http://www.avocetsystems.com/company/techshee/asheets/avsys.html[^]

are real good embedded system "OS" or i prefer the term scheduler, have a look at how they work it gives a great insight into what goes on under the hood.

Re: How to Multiple Thread execute at Same Time(simultaneously) in c#.

Luc Pattyn11-Jul-08 3:11

Luc Pattyn

11-Jul-08 3:11

Hi,

if you hope to get
MMMMMyyyyy NNNNNaaaaammmmmeeeee iiiiisssss BBBBBrrrrruuuuuzzzzzeeeee
then your code isn't the right one. The Console class is somehow synchronized in an effort to
keep the output readable, so each Console.WriteLine will execute in sequence; the sequence of
the threads will however be random, but since they all emit the same text, you won't notice.

Smile | :)

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How would you test this

Razvan Dimescu10-Jul-08 22:15

Razvan Dimescu

10-Jul-08 22:15

I have a presenter(int a MVP architecture). The initialization function gets some data from the database. First I populate the comboboxes and then i populate each control with data

IList<payments> payments = _dbOp.GetListOfItems<payments>();
_view.SetCbPaidtoAccount_DataSource(paidToItems, "Text", "PaymentId");

etc...

OrderItem orderItem =_dbOp.GetItem<orderitem>(orderId)
if(item!=null)
   PopulateControlsFromItem(orderItem);
</orderitem></payments></payments>

private void    PopulateControlsFromItem(orderItem)
{
_view.SetPaymentType_Value=orderItem.paimentId;
etc...
}

My question is.. how would you test the PopulateControlsFromItem method?

N a v a n e e t h10-Jul-08 22:30

10-Jul-08 22:30

razvan_dme wrote:
how would you test the PopulateControlsFromItem method?

It is a private method and you are wondering how to test it, right ? Looks like you have a design issue. Look at the SRP[^] and refactor your class which will make it test friendly.

If you think it is in a good structure, try mocking _dbOp.GetListOfItems() and other codes and test presenter initialization. But it's not a good approach though.

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Razvan Dimescu10-Jul-08 23:01

Razvan Dimescu

10-Jul-08 23:01

Ok, in the initialization function i'm getting data from database and then i'm setting this data to my controls, so that means I have broken the SRP, even though the purpose of my method is to fill controls with data taken from the database?

I'm doing the same thing with the method PopulateControlsFromItem - firstly i get info from the database and then i'm filling the controls from view with data. I could get rid of this method and place the code in the initialization function, but the code would look messy.

Can you please give me a suggestion of how I should refactor my presenter class?

N a v a n e e t h10-Jul-08 23:14

10-Jul-08 23:14

razvan_dme wrote:
Can you please give me a suggestion of how I should refactor my presenter class?

It's very tough to do as I haven't seen the whole implementation. As "PopulateControlsFromItem" is a part of presenter initialization, testing presenter initialization would cover this method also. Then assert all the expected initializations are happened. AFAIK, you don't write unit tests for each and every method, you write unit tests for testing a particular functionality. Here it is presenter initialization.

Hope it's clear

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Razvan Dimescu10-Jul-08 23:24

Razvan Dimescu

10-Jul-08 23:24

Do you happen to know an open source project so that I can see a view of how MVP architecture is handled and tested?

N a v a n e e t h13-Jul-08 16:59

13-Jul-08 16:59

I have seen StructureMap[^] which is created by Jeremy D Miller. It's a dependency injection framework which helps to create testable applications. Here[^] is a good MVP implementation with steps to test it. It's in ASP.NET.

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