C# Discussion Boards - CodeProject

Stephane Rodriguez.8-Nov-02 2:26

8-Nov-02 2:26

That's correct. The release of the CLR marks the death of COM.

Back to real work : D-22.

Nick Parker8-Nov-02 3:36

8-Nov-02 3:36

.S.Rod. wrote:
That's correct. The release of the CLR marks the death of COM.

Confused | :confused:

Ok, are you contradicting yourself or agreeing with me?

Nick Parker

May your glass be ever full.
May the roof over your head be always strong.
And may you be in heaven half an hour before the devil knows you’re dead. - Irish Blessing

Stephane Rodriguez.8-Nov-02 3:45

8-Nov-02 3:45

I agree with you.

Back to real work : D-22.

Nick Parker8-Nov-02 17:20

8-Nov-02 17:20

.S.Rod. wrote:
Back to real work : D-22.

Could you explain this, I think I have read it in your posts since it said D-28. What does it mean, are you counting down days or something?

Nick Parker

May your glass be ever full.
May the roof over your head be always strong.
And may you be in heaven half an hour before the devil knows you’re dead. - Irish Blessing

Stephane Rodriguez.8-Nov-02 19:26

8-Nov-02 19:26

In 21 days, I am employed again. Wink | ;)

Back to real work : D-21.

Nick Parker9-Nov-02 2:07

Re: .INI file usage in C#

9-Nov-02 2:07

.S.Rod. wrote:
In 21 days, I am employed again.

Hey, congratulations and good luck. Smile | :)

Nick Parker

May your glass be ever full.
May the roof over your head be always strong.
And may you be in heaven half an hour before the devil knows you’re dead. - Irish Blessing

.INI file usage in C#

Darryl Borden7-Nov-02 11:54

Darryl Borden

7-Nov-02 11:54

Is there support for using .ini files in C#? I can't seem to find it anywhere. Is there a substitute for this (I don't want to use the registry)?

Thanks for your help!

dpb

Darryl Borden
Principal IT Analyst
darryl.borden@elpaso.com

Nick Parker7-Nov-02 13:20

7-Nov-02 13:20

Darryl Borden wrote:
Is there a substitute for this (I don't want to use the registry)?

How about just using an XML file, I believe this is the "way" some apps are going now because it is so easy to work with them inside the Framework.

Nick Parker

May your glass be ever full.
May the roof over your head be always strong.
And may you be in heaven half an hour before the devil knows you’re dead. - Irish Blessing

By the way, ...

Anonymous7-Nov-02 20:33

Anonymous

7-Nov-02 20:33

Can you show me an example how to read\write data to a xml file?

Re: By the way, ...

Nick Parker8-Nov-02 3:40

Re: .INI file usage in C#

8-Nov-02 3:40

Here is an article that may help:
Convert INI file to XML[^]

Nick Parker

May your glass be ever full.
May the roof over your head be always strong.
And may you be in heaven half an hour before the devil knows you’re dead. - Irish Blessing

Karavaev Denis8-Nov-02 1:10

Karavaev Denis

8-Nov-02 1:10

Try to use this code in your app.
////////////////////////////////////////////////////
public class IniFile
{
public string path;

[DllImport("kernel32")]
private static extern long WritePrivateProfileString(string section,string key,string val,string filePath);
[DllImport("kernel32")]
private static extern int GetPrivateProfileString(string section,string key,string def,StringBuilder retVal,int size,string filePath);

public IniFile(string INIPath)
{
path = INIPath;
}

public void IniWriteValue(string Section,string Key,string Value)
{
WritePrivateProfileString(Section,Key,Value,this.path);
}

public string IniReadValue(string Section,string Key)
{
StringBuilder temp = new StringBuilder(255);
int i = GetPrivateProfileString(Section,Key,"",temp,255,this.path);
return temp.ToString();

}
}

=====================
http://wasp.elcat.kg

Class/Collection tutorial

hammackj7-Nov-02 10:34

hammackj

7-Nov-02 10:34

Are there any good Class or Collection tutorials out and about? I cannot find any on this site, does anyone have some links?

thanks =)

Beginner Q: How to create a splash screen

matthias s.7-Nov-02 8:28

matthias s.

7-Nov-02 8:28

Hi *.*!

I'm a beginner on C# and don't seem to be capable to figure out on how to do a splash screen. What I have is a Main Window which takes some time to load because it does quite some stuff in the OnLoad. Because of this I'd like to display a so-called splash screen which is loaded and shown when the application starts and as soon as all the initializations are done, is unloaded again. Can anybody pls. advise? Don't need the source code (would be fine though Smile | :)

) but just a hint on how to do this.

Thanx in advance!

In theory, there is no difference between theory and practice. In practice, however, there is.

(unknown author)

Re: Beginner Q: How to create a splash screen

Daniel Turini7-Nov-02 8:43

Daniel Turini

7-Nov-02 8:43

Create a form, remove the border, put a timer on it, in the Elapsed event, Close the form.

lazy isn't my middle name.. its my first.. people just keep calling me Mel cause that's what they put on my drivers license. - Mel Feik

Re: Beginner Q: How to create a splash screen

matthias s.8-Nov-02 0:29

matthias s.

8-Nov-02 0:29

Thanks for your answer, but:

1. you don't have control over the loading progress. What I wanted to do is to display the splash screen only as long as my form needs to load. No longer no shorter.

2. Another issue with those splash screens ist that they should stay on top of all windows in your application. If you do it a modal dialog, processing (loading the main form) will not continue as long as the form is shown, if you do it with .TopMost=true and .Show, you have it hanging over each and every application. As well not quite what I would need.

After giving the whole thing a good thought, I came to the point that the only solution is to spawn a new thread when the main window starts loading, show a form in this thread and stop the thread when I'm through with my stuff and the main wnd is ready to be shown.

Agree?

Thanks a lot,

Matthias

In theory, there is no difference between theory and practice. In practice, however, there is.

(unknown author)

Re: Beginner Q: How to create a splash screen

Ray Cassick8-Nov-02 8:16

Ray Cassick

8-Nov-02 8:16

Instead of setting your main form as the start up object, try creating a moudle (what ever they are called now) and put the sub main there. In there , display your spalsh screen, the display your main dialog. When the main dialog is done loading, kill the splash screen.

Serializing an Exception object

solidstore7-Nov-02 7:12

solidstore

7-Nov-02 7:12

Is it possible to serialize an Exception derived class? When I try to add an exception to a System.Messaging.Message object (which internally serializes the object to XML) I receive the following error:

System.InvalidOperationException: There was an error reflecting 'Send.DALException'. ---> System.InvalidOperationException: The property 'Source' on type 'System.Exception' cannot be serialized because it is decorated with declarative security permission attributes. Consider using imperative asserts or demands in the property accessors.

What does this mean? Can I get around it?

Re: Serializing an Exception object

Franz Pikal7-Nov-02 22:00

Franz Pikal

7-Nov-02 22:00

hi,
i use this exception class in my remoted components. this execption class is serializable and should help you with your problem.

[Serializable]
public class ComponentException: ApplicationException, ISerializable
{
public ComponentException()
{
}
public ComponentException(string message)
: base(message)
{
}
public ComponentException(string message, Exception inner)
: base(message, inner)
{
}
//Deserialization constructor.
public ComponentException (SerializationInfo info, StreamingContext context)
: base( info, context)
{

}
}

hope it helps
franz

Re: Serializing an Exception object

solidstore7-Nov-02 22:47

solidstore

7-Nov-02 22:47

Thanks for the reply. Message queuing must try to serialize the object differently to your project because I still get an error. Its complaining it cant reflect the class because of security? I just have a wizard created Windows Forms project and have done nothing with security. Am I missing something? Heres a quick sample of code:

<br />
System.Messaging.Message msgRequest = new System.Messaging.Message();<br />
DALException apex = new DALException("Database Error", inner);<br />
msgRequest.Body = apex;<br />
msgRequest.Label = "Test";<br />
requestQ.Send(msgRequest); // throws an exception<br />

System.InvalidOperationException: There was an error reflecting 'Send.DALException'. ---> System.InvalidOperationException: The property 'Source' on type 'System.Exception' cannot be serialized because it is decorated with declarative security permission attributes. Consider using imperative asserts or demands in the property accessors.

Re: Serializing an Exception object

Franz Pikal7-Nov-02 23:05

Franz Pikal

7-Nov-02 23:05

hm, apperently your problem is not with the serializer but with code access security.
there is a tutorial available in the online help focusing on declarativ and imperativ code access security: "ms-help://MS.VSCC/MS.MSDNVS/csref/html/vcwlkSecurityTutorial.htm#vcwlksecuritytutorialsuppressingsecurity" or type "Security Tutorial" in the search screen of the online help.

i didn't have time to look into code access security up to now, so i wont be much help on this topic. if you find a solution to this problem it would be great if you drop me a mail.

the help also states that a default XMLMessageFormater is used if you do not provide your own. perhaps you could write your own XmlMessageFormatter class and let the message queue use this one instead of the default.

cheers
franz

Dynamic load of objects and its effects

LongRange.Shooter7-Nov-02 3:46

LongRange.Shooter

7-Nov-02 3:46

Okay, I searched the message board and it looks like this is a new topic.
From the point of view of having code that does not require changes and compiles, I have had a few designs that really would work best if I can dynamically load a DLL. So this has led to a few questions:

1. Just what are the steps I have to take to dynamically load a DLL

2. In all cases, each DLL is an implementation of a template DLL (or an inheretance of a base class...just with a different name in each case. So we were thinking of creating reference to the base class, establishing an object of that type, but dynamically setting it to whichever DLL I want to load.

3. Has anyone done any testing to determine if a dynamic load via Reflection has as bad of a throughput effect as late binding in VB6?? (early binding having a performance edge of 1000 fold over late binding) I was thinking that since we are doing what I explained in point 2, that I would have the flexibility of 'late binding' in that I am loading one of n-fold objects, but with the speed of early binding since I have the base object defined.

I would appreciate any input on this topic!

Thanks, Michael

_____________________________________________
_{I have a tendancy to where my mind on my sleeve
I have a habit of losing my shirt...}

Re: Dynamic load of objects and its effects

Stephane Rodriguez.7-Nov-02 4:43