C# Discussion Boards - CodeProject

SimpleData18-Jul-09 2:21

18-Jul-09 2:21

Hi Let's assume that I have 2 forms, the main form and the form that main form opens (Form2).

In the first form I have a button - when pressed it opens Form2 and closes the main form -. It closes main form and opens Form2 with this code:

this.Hide();

using (Form2 _Form2 = new Form2())
{
   _Form2.ShowDialog();
   this.Dispose();
}

this.Close();

When I press that button main form closes and Form2 opens without a problem, but main form doesn't get destroyed. If main form is doing something on it's thread it keeps doing it at background. I want the main form to be completely destroyed. How can I do this?

Thanks.

Re: Working with multiple forms

Luc Pattyn18-Jul-09 3:07

Luc Pattyn

18-Jul-09 3:07

Hi,

Form.ShowDialog() waits for the new Form to be closed, so your Dispose statement isn't helping at all.
Try this:

this.Hide();
_Form2.ShowDialog();
this.Show();   // optional

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Re: Working with multiple forms

SimpleData18-Jul-09 3:15

SimpleData

18-Jul-09 3:15

When I open Form2, I want main form to be completely destroyed but in your code it doesn't get destroyed too.

A thread is working in main form and it keeps doing what it does after the main form is closed and form2 is shown. I don't want main windows to keep doing anything.

Re: Working with multiple forms

Luc Pattyn18-Jul-09 3:27

Luc Pattyn

18-Jul-09 3:27

SimpleData wrote:
A thread is working in main form

That does not make sense. A thread does not live inside a Form, a thread is a piece of code, any code, executing on a processor, and a Form is a GUI component. Maybe your Form class created and started the thread, destroying the Form would not stop such a thread, unless you do it explicitly in a destructor/finalizer but I doubt very much that is what you are doing.

If you want a thread to stop doing what it does, then tell it to stop by setting some flag, and have the thread check that flag regularly. Killing/aborting a thread the hard way isn't a very good idea.

Smile | :)

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Re: Working with multiple forms

SimpleData18-Jul-09 3:35

SimpleData

18-Jul-09 3:35

How can I set a flag and then stop that thread with a destructor/finalizer?

Re: Working with multiple forms

Luc Pattyn18-Jul-09 3:53

Luc Pattyn

18-Jul-09 3:53

you don't need a destructor/finalizer to stop a thread.
Here is a pseudo-code example:

Thread thread;
bool cancel;

void start_Clicked() {
    cancel=false;
    thread==new Thread(...threadCode);
    thread.Start();
}

void stop_Clicked() {
    cancel=true;
}

void threadCode() {
    while(!cancel) {
        .. do something useful
    }
}

thas is cooperative thread control: the thread is doing some of the controlability work itself (the while test)

Smile | :)

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Re: Working with multiple forms

SimpleData18-Jul-09 4:14

SimpleData

18-Jul-09 4:14

Thank you for your answer, I really need to make some structural changes on my code Smile | :)

Access Database in Remote Server from LAN

vasanth arivali18-Jul-09 1:58

vasanth arivali

18-Jul-09 1:58

Hai

I want to connect the remote server from my LAN computer becoz to access the database in the remote server through C# code.
plz give me some useful ideas and examples in C#

Re: Access Database in Remote Server from LAN

dan!sh 18-Jul-09 3:08

dan!sh

18-Jul-09 3:08

Just set the data source in the connection string as the name/IP of the computer where database is. Connection string can be found here[^].

Re: Access Database in Remote Server from LAN

Monjurul Habib5-Jun-11 7:36

Monjurul Habib

5-Jun-11 7:36

http://www.vkinfotek.com/connectionstring.html[^]

Get full HTML-code

Martijn Verbakel18-Jul-09 0:28

Martijn Verbakel

18-Jul-09 0:28

Hi,

I have a problem with my WebBrowser:
I can't get the full HTML code!
I only get redirects to the frame's, but i need the code in it!
I can't go to the url, because for some reason, the page is empty then!

Please help me!
Martijn.

BTW. Sorry, i'm dutch, i can't speak very well english Poke tongue | ;-P

Re: Get full HTML-code

Mycroft Holmes18-Jul-09 0:47

Mycroft Holmes

18-Jul-09 0:47

Your english seems fine, I'm just having trouble seeing the relevance of the question to a C# forum or programming in general.

Who's html code, yours or another site. Some detail of what you are trying to achieve may be useful.

Never underestimate the power of human stupidity
RAH

Re: Get full HTML-code

Martijn Verbakel18-Jul-09 0:51

Martijn Verbakel

18-Jul-09 0:51

It's not my code.

It's from another site (http://eindhovensdagblad.ned.newsmemory.com/eebrowser/frame/develop.396.david/init/default_dglay.php?pSetup=eindhovensdagblad&type=[^])

I need the code in the frame named "data";
but: data.InnerHtml = ""

How do i know in which drive the operating system is installed in a c# application?

CoderForEver17-Jul-09 23:20

CoderForEver

17-Jul-09 23:20

I have a c# application & i want to install this application in the drive where the operating system is currently installed..................... can you tell me the code just to know in which drive is the operating system installed(like 'C','D')..............then i will work it out..

Thank you

Re: How do i know in which drive the operating system is installed in a c# application?

Luc Pattyn17-Jul-09 23:50

Luc Pattyn

17-Jul-09 23:50

Hi,

there are many ways to get such information.
One is by looking at some of the environment variables (e.g. WINDIR).
An easier one is using Environment.GetFolderPath(SpecialFolder.System)

Smile | :)

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Re: How do i know in which drive the operating system is installed in a c# application?

Baeltazor18-Jul-09 0:37

Baeltazor

18-Jul-09 0:37

Thanks muchness Luc. Thumbs Up | :thumbsup:

Re: How do i know in which drive the operating system is installed in a c# application?

Luc Pattyn18-Jul-09 0:39

Luc Pattyn

18-Jul-09 0:39

all of you are welcome.

Smile | :)

Luc Pattyn [Forum Guidelines] [My Articles]

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Re: How do i know in which drive the operating system is installed in a c# application?

Mycroft Holmes18-Jul-09 0:49

Mycroft Holmes

18-Jul-09 0:49

I wonder if you are helping 2 people with the identical problem, or the guys schitsophrenic and can't decide which identity to use!

Never underestimate the power of human stupidity
RAH

Re: How do i know in which drive the operating system is installed in a c# application?

Luc Pattyn18-Jul-09 0:54

Luc Pattyn

18-Jul-09 0:54

2? its much more complex, you don't want to know, trust me. Laugh | :laugh:

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Re: How do i know in which drive the operating system is installed in a c# application?

CoderForEver18-Jul-09 18:30

CoderForEver

18-Jul-09 18:30

Ok dude.............i will try it

How can i play a flash(.swf) file in a c# application?

CoderForEver17-Jul-09 23:14

CoderForEver

17-Jul-09 23:14

I have made an application in c# and I also have a flash file(xx.swf) .............. and i want this flash movie to be displayed as an Splash screen.......................................... so can you help me how to do that?

Thank Y0u

Re: How can i play a flash(.swf) file in a c# application?

Mycroft Holmes18-Jul-09 0:52

Mycroft Holmes

18-Jul-09 0:52

Seems to be plenty of resources[^] out there for this question

Never underestimate the power of human stupidity
RAH

Re: How can i play a flash(.swf) file in a c# application?

vasanth arivali20-Jul-09 19:15

vasanth arivali

20-Jul-09 19:15

Use Shock Wave Flash Object we can play the .swf file in our application.

Right Click the Tool Box-> Choose Items->COM Components->Shock Wave Flash Object.

Now control add on your tool box, click and drag the control and give the Movie URL and Base URL.

Movie URL - *.swf;
Base URL - *.fla.(Base URL is Optional)

---- Vasanth.A

Re: How can i play a flash(.swf) file in a c# application?

CoderForEver22-Jul-09 1:44

CoderForEver

22-Jul-09 1:44

oh .... good one ... i will check it out ...... but one my friend here gave me resources on how to get them ..................... but there are 2 *.dll files (ShockwaveFlash and AxShcokwaveFlash) ............ but I cant find the 2nd one but it is really hard form me to play them using the first dll ...... any ways i will keep on trying

Thank you...

Re: How can i play a flash(.swf) file in a c# application?

CoderForEver22-Jul-09 2:15

CoderForEver

22-Jul-09 2:15

Hey man ............... thats what am talking about ....................... you got it ...................... thanks for your help .......................
I was finding such kind of man for weeks .... and that is cool .......

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