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I use store procedures a lot, never thought it´s a bad idea.
It makes my work better organized.
Good Luck
nelsonpaixao@yahoo.com.br
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Hi,
I have build a class with a Thread as a member. The thread's function is also defined within the class and I start the thread at the class' constructor. - So far so good ...
Now my question: I created a instance of this class and I've noticed that the internal Thread keeps running after the class instance goes out of scope.
I can see that the only way to stop the Thread is to implement a "public Teminate()" method that kills the Thread.
I wanted to implicity shut down the internal Thread so I tried to implement Finalizer. this didnt work for me - the Internal thread kept running and the Finalizer never called
Any ideas how to solve this issue? It also interesting to know why such behvior occures.
Many thanks!!
Ofer
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ofeririko wrote: Any ideas how to solve this issue?
Yes. I suggest you start here[^]. After you have exhausted that resource there are many, many others available on the internet on this subject.
led mike
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ofeririko wrote: I created a instance of this class and I've noticed that the internal Thread keeps running after the class instance goes out of scope.
Yes, mainly for two reasons.
1. A thread doesn't die just because there is no reference to it's class. It's referencing the class itself, so it's not going to be garbage collected.
2. Nothing happens to the object when the variable referencing it goes out of scope. Absolutely nothing. When an object becomes unreachable it's up for garbage collection, but the garbage collector doesn't care about scope at all, only usage. The concept of scope is only relevant to the compiler.
ofeririko wrote: I can see that the only way to stop the Thread is to implement a "public Teminate()" method that kills the Thread.
The well behaved way of stopping a thread is to tell it to stop, and let it exit out of it's main method by itself. Changing the value of a volatile variable that the thread is polling, is one way of doint that.
ofeririko wrote: I wanted to implicity shut down the internal Thread so I tried to implement Finalizer. this didnt work for me - the Internal thread kept running and the Finalizer never called
Of course not, the Finalizer is only called once the garbage collector notices that the object is up for garbage collection, but as the thread is referencing the object, it never will be.
If you want to control the life cycle of an object, you should implement the IDisposable interface.
Despite everything, the person most likely to be fooling you next is yourself.
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hi friends
i have a question about object oriented(class inheritance)
i have a windows application with c# that in this application i have 2 forms. these 2 forms have few methods i show you below.
========> form1
public partial class form1:Form
{
public form1()
{
InitializeComponent();
}
public void change_value_label(string new_value)
{
lbl.Text=new_value;//this label defined as private controll for this form
}
}
=========>form2
public partial class form2:Form
{
public form2()
{
InitializeComponent();
}
private void subject_Load(object sender, EventArgs e)
{
//in this area code i want to write a code that call change_value_label method of form1 , but i can't
// if i create a new object of form1 then i can call the method but with this way i cannot change the value of the label on form1
//and if i declare change_value_label method on form1 as static method then on the method i cannot access to the label because this controll is not static and i //cannot define the label as static control
//please tell me what do i have to do to solve this problem?
}
}
form1 and form2 are showing at te same time because this two forms are children forms.
thank u.
nobody help you...
you have to help you yourself
and this is success way.
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I'm not sure what this has to do with inheritance - both forms are inheriting from System.Windows.Forms.Form
Anyway, I answered a similar question a few minutes ago here[^].
If both forms are child forms then you may need to use events as well.
DaveBTW, in software, hope and pray is not a viable strategy. (Luc Pattyn)
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Colin[^] has a good article on his blog here[^]
DaveBTW, in software, hope and pray is not a viable strategy. (Luc Pattyn)
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Add a handler for the load event of form2 in form1 and do whatever you need to do. This is the easiest solution and it is OO as well.
To do so, create a method or property in form1 and send it the instance of form2. Then within form2 create an event handler for the load event of form1 and do whatever you need to--change the label.
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I am attempting to modify a file that a program has a lock on which is write-only. Is there some way i can do this in C#?
Einstein argued that there must be simplified explanations of nature, because God is not capricious or arbitrary. No such faith comforts the software engineer.
-Fred Brooks
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StevenWalsh wrote: Is there some way i can do this in C#?
There shouldn't be. Other programs usually have locks on files for a reason.
"The clue train passed his station without stopping." - John Simmons / outlaw programmer
"Real programmers just throw a bunch of 1s and 0s at the computer to see what sticks" - Pete O'Hanlon
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Hello
I'm trying to open the print dialog using the following code, tryin to set the selected printer to "PDF995" instead the default one
But it always shows the default
However I can manualy select "PDF995"
What am I doing wrong ?
Thans for any help
PrintDialog pd = new PrintDialog();
pd.PrinterSettings.PrinterName = "PDF995";
if (pd.PrinterSettings.IsValid)
{
int a = 1;
}
pd.Document = printDoc;
printDoc.DefaultPageSettings.Margins = printmargins;
pd.AllowCurrentPage = true;
pd.AllowSelection = true;
pd.AllowSomePages = true;
pd.AllowPrintToFile = false;
if (DialogResult.OK == pd.ShowDialog())
{
SetupPrint(pd);
printDoc.Print();
}
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I need to create PDF documents on the fly. I came across libraries such as iTextSharp, PDFSharp, PDFClown etc. Which one is better? Can anyone recommend one? I am using .Net 2.0.
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CodingYoshi wrote: Which one is better? Can anyone recommend one?
Only you can choose the one that is the best for you. This is a highly subjective issue, and it's up to you to look at it based on the criteria that you think is important - for instance, is ease of use important to you, or support for the latest versions of the PDF format, or speed of PDF creation? Only you can decide which meets your criteria.
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That is well said.
"The clue train passed his station without stopping." - John Simmons / outlaw programmer
"Real programmers just throw a bunch of 1s and 0s at the computer to see what sticks" - Pete O'Hanlon
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Why thank you sir. I do occassionally try to give an intelligent answer. 
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Seems like there's been a rash of PDF questions floating around here the past few weeks. Wonder what is up with that? [Checks calendar - no full moon for another 12 days  ]
"The clue train passed his station without stopping." - John Simmons / outlaw programmer
"Real programmers just throw a bunch of 1s and 0s at the computer to see what sticks" - Pete O'Hanlon
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Thanks for the reply. I need one that is compatible with .NET 2.0. Ease of use is important, but so is speed. Basically, one that can accommodate most of what you mentioned. Perhaps, one that people have used and have good things to say about.
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Hai u can use pdfnet library
for more queries see this link
http://www.pdftron.com/net/index.html
RamyaNaidu
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Hi all...
is there any way to get path of the image from imageList....
Regards
Vayanan
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Hi,
ImageList is only used to store images. It does not have the option to return the actual path
of the images.
Regards,
Allen
Allen Smith
ComponentOne LLC
www.componentone.com
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Correct. One option to circumvent this problem might be to add the file path of the image into the Tag property of the Image instance, something like:
Image someImage = Image.FromFile(filepath);
someImage.Tag = filepath;
imageList.Add(someImage);
This might cause problems though when the user renames/deletes/moves the actual image while the application is running. But this could be handled using a FileSystemWatcher to react to these actions.
regards
modified 12-Sep-18 21:01pm.
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Thanks Alot...
Regards
Vayanan
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path??? there is none. Are you thinking of uploading pictures to a database? search here int the articles, there is plenty of info.
Good luck 
nelsonpaixao@yahoo.com.br
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Hi,
I had written service which will fire for every 3 seconds.Actually I had written a service which fire when an user open a word document and click print button on it.For this Iam using WMI from that Iam checking jobs for every 3 sec.
Now I want to make my service work only when a print button(i.e., normal print option from notepad,wordpad,document....like..)is fired.
I think i have to watch the events.....how to do that i have no idea..
Kindly help me and guide in proper way..
Thanks
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hi
did u try to study the links i posted you
Vikas Amin
UNITED STATES STEEL CORPORATION
My First Article on CP" Virtual Serial Port "[^]
modified on Thursday, July 24, 2008 5:33 PM
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