Re: Casting generic parameters to int - C# Discussion Boards

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Re: Hmmm why won't this work?

mfkr2-Jun-07 19:17

mfkr

2-Jun-07 19:17

That isn't what I'm really worried about right now. I'm worried more about getting all the beings on the screen...I have a loop for 1000 and it only does 1 to 4...I know that the code you have above is bad but it is temporary just to test...

Re: Hmmm why won't this work?

Christian Graus2-Jun-07 19:22

Christian Graus

2-Jun-07 19:22

Well, it's way too much code to expect anyone is going to read it all, that's why I suggested a breakpoint or some logging code, to see if they are actually all being moved, and what the result is.

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: Hmmm why won't this work?

Robert Surtees2-Jun-07 19:24

Robert Surtees

2-Jun-07 19:24

I'm not familiar with how windows seeds its Random number generator but if it is like others I've used they are often seeded with the system tick if you don't specify a seed value. You create a new generator for each being, and I bet they all get started with the same seed so they're just drawing over the tops of each other.

Either use one Random() to rule them all, or put some sort of delay between calls.

Re: Hmmm why won't this work?

mfkr2-Jun-07 19:32

mfkr

2-Jun-07 19:32

I think I got it. For some reason whenever you start a new instance of being...the random that I start an instance of is just about always the same. However, if I run the random from the main program...it actually creates a random position...odd...Thanks guys.

Re: Hmmm why won't this work?

Christian Graus2-Jun-07 20:33

Christian Graus

2-Jun-07 20:33

It's not odd, it happens for exactly the reason you were just told it would happen.

Re: Hmmm why won't this work?

Dave Kreskowiak3-Jun-07 5:07

Dave Kreskowiak

3-Jun-07 5:07

No, not odd. Understand how a Random Number Generator works. There's no such thing as a truely random number in a computer. They can't come up with a number out of thin air. Even humans can't do this reliably.

The RNG is a smallish piece of code that takes a starting number (a seed) and puts it through a complex calculations to arive at a new number. The next pseudo-random number takes the previous one and runs it through the same math to arrive at a new number, and so on, and so on.

This generates a string of REPEATABLE pseudo-random numbers, given any seed value.

As the previous poster said, if you don't give a seed value when you create your Random object, the timer value is used. All of your objects are creating their own Random object, but they're all seeded with the exact same value! There result will be all of of those Random objects each generating the exact same string of numbers!

Typically, you'd create a static Random somewhere, much like a "global variable", that all of your code can get to. That way, you only have one source of random numbers, which will give you a closer approximation of "random" acrossed your code than having multiple sources.

A guide to posting questions on CodeProject[^]

Dave Kreskowiak
Microsoft MVP
Visual Developer - Visual Basic
2006, 2007

Casting generic parameters to int

Jack Valmadre2-Jun-07 15:19

Jack Valmadre

2-Jun-07 15:19

Hi I have an array of integers, where each one is an index for an array of objects, and I'm trying to sort the array by the .name property of the objects. I've set up a class using the IComparer interface to do this.

List<int> SubjList = new List<int>();
SubjectIndexComparer<int> subjectIndexComparer = new SubjectIndexComparer<int>();
...
SubjList.Sort(subjectIndexComparer);

public class SubjectIndexComparer<T> : IComparer<T>
{
    ...
    public int Compare(T x, T y)
    {
        string textX = Singleton.Instance.subjList[(int)x].name;
        string textY = Singleton.Instance.subjList[(int)y].name;
        ...
    }
}

However, this doesn't work because I can't cast x and y from type T to int. I only want the function to work if T can be casted to an integer. How can I implement this? I don't actually need the function to be generic, it would be fine if it just took integers, but the List.Sort() method required that form. Thanks in advance.

Jack

Re: Casting generic parameters to int

mikker_1232-Jun-07 16:29

mikker_123

2-Jun-07 16:29

Why don't you try with:

public class SubjectIndexComparer<int> : IComparer<int>
    {
        ...
        public int Compare(int x, int y)
        {
            ...
        }
    }

? Does that helps?

Re: Casting generic parameters to int

Jack Valmadre2-Jun-07 17:27

Jack Valmadre

2-Jun-07 17:27

I tried with:

public class SubjectIndexComparer : IComparer
{
    ...
    public int Compare(int x, int y)
    {
        ...
    }
}

but I got:
'UQTimetable.SubjectIndexComparer' does not implement interface member 'System.Collections.IComparer.Compare(object, object)'

I tried with:

public class SubjectIndexComparer : IComparer
{
    ...
    public int Compare(object x, object y)
    {
        ...
    }
}

but I got:
The best overloaded method match for 'System.Collections.Generic.List<int>.Sort(System.Collections.Generic.IComparer<int>)' has some invalid arguments
Argument '1': cannot convert from 'UQTimetable.SubjectIndexComparer' to 'System.Collections.Generic.IComparer<int>'

Any more ideas?

Jack

Re: Casting generic parameters to int

Daniel Grunwald3-Jun-07 2:13

Daniel Grunwald

3-Jun-07 2:13

Use this:

public class SubjectIndexComparer : IComparer<int>  
{   
  public int Compare(int x, int y)  
  {  
    ...  
  }  
}

Re: Casting generic parameters to int

mikker_1233-Jun-07 4:37

mikker_123

3-Jun-07 4:37

that's what I meant... tnx for correcting me Daniel.

Re: Casting generic parameters to int

Jack Valmadre3-Jun-07 10:34

Jack Valmadre

3-Jun-07 10:34

Worked a treat! Thanks

Jack

Getting to the encapsulated class within a ServiceHost object?

LongRange.Shooter2-Jun-07 11:36

LongRange.Shooter

2-Jun-07 11:36

We have about 13 services that my service manager is starting up. All are ServiceHost objects. Some of the services will optionally inherit an IServiceRequestor interface that exposes an initialize and terminate routine that I need to call at startup and shutdown of the service.

Problem: The object is encapsulated with the ServiceHost object and I cannot find where I can access the class to run the routines.

Has anyone done this? How do I get at the encapsulated object to cast it to my IServiceRequestor object so that the intialize and terminate methods are executed within the ServiceHost's AppDomain?

How can you adjust the maximum window size for Word, IE, Notepad, etc.???

RedPocket2-Jun-07 8:11

RedPocket

2-Jun-07 8:11

Hi All,

I'm creating an application with a form that spans the length of the screen i.e. 1024x100 on a 1024x768 screen. Is there a way that i can reposition the 'usable' window to begin at the bottom left corner of the form? For example, if I open IE or Notepad, when maximized, the top most corner would be (0,668). Currently when I maximize IE, most of the menu appears under the form.

Any help would be appreciated

Thanks!

DLee

Automatically adding dll file to publish without reference

jayrooney072-Jun-07 5:56

jayrooney07

2-Jun-07 5:56

Hi,

I'm working on a C# project in which there's a conflict between two dll-files (office automation dll's, version 2.1 & version 2.4), forcing me to manually copy the second dll to the "bin/Debug" folder instead of referencing to it in the solution. The problem is that the project needs to be distributed using the ClickOnce publish feature in Visual Studio 2005, and the second dll is not added to the distributed version of the project.

Now I need this file to be included into the publish procedure, so it is added in the result and can be used. I have been exploring VS 2005, but I didn't find any solution up till now.

Is there a way to auto-include non-referenced dll files to a publish, or will I need to solve the dll conflict in another way?

Both dll files have a different name and the project runs as it should, but the "old" dll file does not completely support the features we are using. And upgrading the old functionality to the new Office dll is also not an option Frown | :-(

.

Any help is appreciated! Wink | ;-)

Greetz

Re: Automatically adding dll file to publish without reference

mikker_1232-Jun-07 16:23

mikker_123

2-Jun-07 16:23

If I understand you correctly this should solve your problem:

1. Copy non-referenced dll to your project's directory and add it to project using Add -> Existing Item -> browse to dll.
2. When it is added to project, right click in it on Solution Explorer -> Properties and Set Build Action -> Content (ClickOnce problem) && Copty to Output Directory -> Copy Always (autocopy) in Properties Window
3. If you now right click on your project icon in Solution Explorer -> go to project Properties -> Publish -> Application Files, you should see your dll in list with status Include(Auto).

Hope this solves your problem, if not -> give more details and I'll answer Smile | :)

.

Cheers!

Re: Automatically adding dll file to publish without reference

jayrooney073-Jun-07 22:36

jayrooney07

3-Jun-07 22:36

I tried your solution, but when debugging, the second dll file (office 2007 dll) is not copied to the Debug folder, only the first one (office 2000 dll) is copied. If I remove the reference to the first dll than the second one is copied. So it seems that only one of the dlls can be in the compiled result. I assume Visual Studio detects an Assembly name or something and this name is the same in both dll files.

I managed to get both dll files in there by adding them both manually and setting build action to "None" and Copy to Output Directory to "Copy Always". The problem is that when debugging, the program crashes with an error that the second dll file could not be found. Sigh | :sigh:

I'm out of options at the moment.

Hope you can help me.

Doking question?

Khoramdin2-Jun-07 4:51

Khoramdin

2-Jun-07 4:51

Hello everyone,

I have a Windows Application with all sort of controllers such as ListView, TextBox, Buttons, ComboBox and so on. I undrestand that I should dock the controllers so once the user changes the Window Size the Windows Application doesn't get ugly anf messed up and still useable.

I was wondering if anyone can take a moment and explain if there are any particular order that I should follow since whatever I am doing there is always one or two controller running over another ones.

Thank you very much and have a great weekend.

Khoramdin

Re: Doking question?

MatrixCoder2-Jun-07 13:08

MatrixCoder

2-Jun-07 13:08

I'm really not sure of your question, this article might help though: Working With Anchoring And Docking

If not, let me know.

Trinity: Neo... nobody has ever done this before.
Neo: That's why it's going to work.

Adding a A-record to Windows 2003 DNS

Bigbirddk2-Jun-07 2:08

Bigbirddk

2-Jun-07 2:08

Hey

I need to be able from my ASP.Net to add a static a-record for some websites

So how do I do that ?
Examles

Adding
"testside" 10.2.6.244
"sales" 10.2.6.244
"tech" 10.2.6.244

It is for a Windows 2003 DNS, I have have all the security right, and are able to do impersonation if thay should be a problem..

Re: Adding a A-record to Windows 2003 DNS

Expert Coming2-Jun-07 18:03

Expert Coming

2-Jun-07 18:03

Research this: DNS WMI Provider.

The best way to accelerate a Macintosh is at 9.8m/sec² - Marcus Dolengo

Create Object Form

hosam Taji2-Jun-07 2:03

hosam Taji

2-Jun-07 2:03

I have project and store the name of this project forms in a database table,
the start up form will show the other project form in a tree view and store the description of that forms and its names

on mouse double click i want to create instance of a form in the selected node with out knowing the name of that form not hard code

also i dont know how to use the system.reflication

please can any one help me

Hosam Taji

Re: Create Object Form

Christian Graus2-Jun-07 2:06

Christian Graus

2-Jun-07 2:06

Can I ask why the duplication ? What if a form name changes within the project, the database will be wrong. Why do you need to use reflection at all, if you know the names of all the forms, to store them in a database table ?

Re: Create Object Form

hosam Taji2-Jun-07 2:12

hosam Taji

2-Jun-07 2:12

what if i have more that 1000 forms in my project do i have to write code for each form in its name to call it, also my project is multilengual and the user can change the form descritpion and loacation in the tree throw a spechle forms so that why i use the database !!!!

i do all these in other languge like oracle developer and know i am trying to do so in C# windows application to let my team enter the information about the forms in the database and then the startup form will call these forms automatic

Hosam Taji

Convert Html to PDF

MHASSANF2-Jun-07 1:47

MHASSANF

2-Jun-07 1:47

hi is there any free component or class to co convert Html to PDF and support Unicode charrecters

with regards

MHF

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