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Re: Controller/GUI in seperate asemblies

S. Senthil Kumar4-Mar-07 7:11

S. Senthil Kumar

4-Mar-07 7:11

Why would the Controller assembly have references to the GUI assembly? Typically, the GUI layer, being the upper layer, has a reference to the Controller layer and calls methods on the Controller layer in response to user actions. The GUI layer also subscribes to events from the Controller layer to update the UI. The Controller layer does not depend on a GUI layer being present and therefore doesn't have a reference to it.

Anyway, the typical way to break circular dependencies is to factor out the common functions into interfaces in a separate assembly and then make the other assemblies refer to the common assembly. Something like

// Assembly A - references B
class GUI : IGUI
{
   void DoGUI()
   {
   }

   void DoSomething(IController controller)
   {
     controller.DoFunc();
   }
}

//Assembly B
interface IController
{
   void DoFunc();
}

interface IGUI
{
  void DoGUI();
}

//Assembly C - references B
class Controller : IController
{
   void DoFunc(){}
   void DoSomething(IGUI gui)
   {
      gui.DoGUI();
   }
}

//Assembly D - references A, B, C
class Factory
{
   IController CreateController(){}
   IGUI CreateGUI(){}
}

Regards
Senthil [MVP - Visual C#]
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IE Toolbar with visual studio 2005

ga2144-Mar-07 4:25

ga214

4-Mar-07 4:25

Hello!
I'd like to write a toolbar for internet explorer (like google toolbar, but more simple) in visual studio 2005.
Is there any way to write this toolbar with C#, or is it inpossible?
If it is possible, how can I start the development? (For example: which new project type should I choose? and so on)
If it is not possible with C#, how can I do it? (I have seen, that it can be done with C/C++ and ATL project, but I did not find a good tutorial, which shows it from the beginning of the work)
Thanks for helping me.

Re: IE Toolbar with visual studio 2005

Vasudevan Deepak Kumar4-Mar-07 5:04

Vasudevan Deepak Kumar

4-Mar-07 5:04

http://www.codeproject.com/Purgatory/VB-IE-Toolbar.asp[^]

Vasudevan Deepak Kumar
Personal Homepage
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Re: IE Toolbar with visual studio 2005

Wayne Phipps4-Mar-07 6:25

Wayne Phipps

4-Mar-07 6:25

Is it really a good idea to post a link to an article in purgatory?

Maybe you should check out the artcile before you link to them.

I however found the following quite usefull reference:

http://msdn.microsoft.com/library/default.asp?url=/workshop/browser/ext/extensions.asp

Hope it helps.

Regards

Wayne Phipps
____________

Time is the greatest teacher... unfortunately, it kills all of its students
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Re: IE Toolbar with visual studio 2005

Vasudevan Deepak Kumar4-Mar-07 15:33

Vasudevan Deepak Kumar

4-Mar-07 15:33

The article might be in purgatory because of incomplete code description but it does contain a brief code snippet, which is a significant guidance or as a starter tool.

Vasudevan Deepak Kumar
Personal Homepage
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Scanning through directories and subdirectories

Polezniy4-Mar-07 1:01

Polezniy

4-Mar-07 1:01

Hi guys,

I'm kind of short in time, and i need a help regarding some search engine in my code.

So, i have this program which looks for files in the drive c, f.e. , and then shows me the information about this files.

Now the problem is, that the program shows me only the files that are in the directory i chose, but it doesnt looks for files in any sub-directory. D'Oh! | :doh:

I was told that I need to use a recursion, but I am kind of short in knowledge of the way to do it.. Confused | :confused:

Here is the code of the search i have:

private void button2_Click(object sender, System.EventArgs e) 

{ 
System.IO.DirectoryInfo d = new DirectoryInfo("C:\\"); 

if(d.Exists ==true) 
{ 
DirectoryInfo[] fiArr = d.GetDirectories(); 
foreach (DirectoryInfo fri in fiArr) 
GetFiles(fri); 

} 
}

I was wondering if you could help me with this..
thanks ahead Smile | :)

Re: Scanning through directories and subdirectories

kubben4-Mar-07 2:00

kubben

4-Mar-07 2:00

You code should be:
private void button2_Click(object sender, System.EventArgs e) {
System.IO.DirectoryInfo d = new DirectoryInfo("C:\\");

GetAllFiles(d);
}

private void GetAllFiles(DirectoryInfo d);
{
if(d.Exists ==true)
{
DirectoryInfo[] fiArr = d.GetDirectories();
foreach (DirectoryInfo fri in fiArr)
{
GetFiles(fri);
//Here is the recursion
GetAllFiles(fri);

} //foreach
} //if
} //GetAllFiles

Hope that helps.

Ben

Re: Scanning through directories and subdirectories

Polezniy4-Mar-07 9:50

Polezniy

4-Mar-07 9:50

Hey,

Thanks for answering me, i really appreciate this Rose | [Rose]

Now, I copied what you wrote but it seems to be some problems with running it.
I use bisual studio .net 2003, Can it be the reason for something to go wrong?
or is it something else?

thanks, once again..

Re: Scanning through directories and subdirectories

Wayne Phipps4-Mar-07 10:26

Wayne Phipps

4-Mar-07 10:26

Although I haven't checked the code, you are probably missing a Using directive at the top of your class.

Try adding this at the top of your class file:

using System.IO;

If this doesn't help, maybe you could post what error your getting.

Regards

Wayne Phipps
____________

Time is the greatest teacher... unfortunately, it kills all of its students
View my Blog

Re: Scanning through directories and subdirectories

kubben4-Mar-07 11:11

kubben

4-Mar-07 11:11

I guess I am assuming that you have written GetFiles(fri);
method. So if that method doesn't exist you need to write it. If you are still getting errors you will nedd to give us the errors you are getting so we have some clue to what the problem might be.

Ben

Re: Scanning through directories and subdirectories

Polezniy5-Mar-07 5:24

Polezniy

5-Mar-07 5:24

Hey,

I have here some picture of the errors i get..
I really appreciate your concern Blush | :O

http://img161.imageshack.us/img161/5641/errorsew7.jpg[^]

Thanks Smile | :)

Re: Scanning through directories and subdirectories

kubben5-Mar-07 5:29

kubben

5-Mar-07 5:29

That error message seems to indicate that the private void GetAllFiles method is not within the class definiation. It needs to be inside of the {} for your page. If you are still having issues you might want to copy your code behind file in a post.

Ben

Re: Scanning through directories and subdirectories

Colin Angus Mackay4-Mar-07 4:20

Colin Angus Mackay

4-Mar-07 4:20

Here is an example of how to get all directories using recursion[^]. It isn't too hard, once you have the list of directories, to iterate through them and get the individual files.

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C# Denies simple math? :\

sharpiesharpie3-Mar-07 23:22

sharpiesharpie

3-Mar-07 23:22

I've added a progress bar to my app and i'm trying to update it but the result is only 0 and then 100.

int t = int.Parse(textBox1.Text);<br />
double s = ((p/t)*100);<br />
progressBar1.Value = (int)s;<br />

t (textBox1) is how many times to do the operation.
p is the counter for how many times it has been done.

ive followed the program with breakpoints and s is always 0.0, even when p is 10 and t is 100 ((10/100)*100) = 10.

wtf? :\

Re: C# Denies simple math? :\

Christian Graus3-Mar-07 23:31

Christian Graus

3-Mar-07 23:31

Try this:

double s = p * 100 / t;

It doesn't matter what order you do divide and multiply on paper, you get the same result. However, if you divide by an int, you get an int and if it's < 1, it will round to an int, so the * 100 isn't doing what you'd hoped.

double t = double.Parse(textBox1.Text);
double s = ((p/t)*100);

or

int t = int.Parse(textBox1.Text);
double s = ((p/(double)t)*100);

would also work.

Christian Graus - Microsoft MVP - C++
Metal Musings - Rex and my new metal blog
"I am working on a project that will convert a FORTRAN code to corresponding C++ code.I am not aware of FORTRAN syntax" ( spotted in the C++/CLI forum )

Re: C# Denies simple math? :\

Guffa4-Mar-07 1:44

Guffa

4-Mar-07 1:44

I believe that you are a former VB programmer?

In VB the / operator is only a floating point operator, and the integer division operator is \. In C# the / operator is defined for both data types, so which one is used depends on the data you use it on.

The exact equivalent of p/t in VB would in C# be (double)p/(double(t), as VB would automatically convert the values to accommodate the operator.

---
single minded; short sighted; long gone;

Re: C# Denies simple math? :\

Christian Graus4-Mar-07 2:14

Christian Graus

4-Mar-07 2:14

Is there any reason to cast p to double ? I thought casting t to double is all that's needed here.

Re: C# Denies simple math? :\

Guffa4-Mar-07 3:19

Guffa

4-Mar-07 3:19

Yes, casting only one of the operands is the minimum required to make it work. That would decide what operator to use, so the other operator will also be cast to the same type. Whether it's done implicitly or explicitly, the generated code will be the same.

I prefer doing explicit casting in situations like this. It shows the intention of the code more clearly than if one relies on implicit conversions.

---
single minded; short sighted; long gone;

how to access a c code with c#

mfmaneef3-Mar-07 23:05

mfmaneef

3-Mar-07 23:05

hi how do i get the output of a c program with csharp codes?i hav a c program which writes its outputs to a text file.. i want that output to be updated to a database through c itself or my csharp program could read that output directly somehow and save to database

aneef

Re: how to access a c code with c#

Vasudevan Deepak Kumar4-Mar-07 5:23

Vasudevan Deepak Kumar

4-Mar-07 5:23

Doesn't DllImport help you?

Vasudevan Deepak Kumar
Personal Homepage
Tech Gossips

Re: how to access a c code with c#

mfmaneef6-Mar-07 21:05

mfmaneef

6-Mar-07 21:05

the c code im using doesnt hav a dll file..it compiles to an exe file..and besides im not much of a c developer im in to c#..ill read about dllimport as wel..thanx man

aneef

Password Form

krajah103-Mar-07 20:51

krajah10

3-Mar-07 20:51

Can any body help me?
I have create window form using C#.There are two item that is textbox for user key in password and OK button to link new form.
What is the code to take user input in the text box.
What is the code to veryfied user input is correct with the real password. If correct link to another form and aotomaticlly close this form.If wrong automaticlly close this form.
TQ.....

Re: Password Form

Christian Graus3-Mar-07 23:33

Christian Graus

3-Mar-07 23:33

No-oe can tell you, because we don't know where the password comes from. The best asumption is a database, in which case, a proc that returns true or false for a username/password pair is the best bet.

krajah1984 wrote:
If correct link to another form and aotomaticlly close this form.If wrong automaticlly close this form.

Close(); will close a form. Is this form the main form of the app ? You could have issues here, also.

Tapi

matata_mn3-Mar-07 19:36

matata_mn

3-Mar-07 19:36

hi
iam new in Tapi ,I want creat project that can Answer call and....
where I shoud Start?!!????
Can u Help
????
tanx

Mati

Re: Tapi

Vasudevan Deepak Kumar4-Mar-07 5:05

Vasudevan Deepak Kumar

4-Mar-07 5:05

http://www.codeproject.com/cs/internet/devangpro.asp[^]

Vasudevan Deepak Kumar
Personal Homepage
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