howto create doc/view c#-apps? - C# Discussion Boards

Re: How I can generate a 5-digit ID in C#

25-Mar-02 2:49

any idea??

big thx!

Pawel

Kannan Kalyanaraman25-Mar-02 4:45

Kannan Kalyanaraman

25-Mar-02 4:45

generate a random no , convert it to string, take out the first five characters and then convert it back to no.

You can look at how to generate random nos in the System.Security.Cryptography namespace.

There is a class for random no generation.

Hope this helps.

Cheers
Kannan

Re: How I can generate a 5-digit ID in C#

gicio25-Mar-02 7:17

Re: How I can generate a 5-digit ID in C#

25-Mar-02 7:17

cool!!

and thx..

but can you give me a code sample how i can generate a #?
becouse i can´t find any code sample in the msdn.

thx

Neil Van Note27-Mar-02 18:29

Neil Van Note

27-Mar-02 18:29

I am still pretty new to C#, but on a hunch I would check out the Random class... Roll eyes | :rolleyes:

Fixed Form

Mazdak25-Mar-02 2:40

25-Mar-02 2:40

By default windows form are resizable,How can I make it fixed size?

Thanks

Mazy

"So,so you think you can tell,
Heaven from Hell,
Blue skies from pain,...
How I wish,how I wish you were here."
Wish You Were Here-Pink Floyd-1975

Re: Fixed Form

25-Mar-02 2:53

MyForm.FormBorderStyle=FormBorderStyle.FixedSingle;
MyForm.FormBorderStyle=FormBorderStyle.Fixed3D;
MyForm.FormBorderStyle=FormBorderStyle.FixedDialog;

Jerzy

Re: Fixed Form

Mazdak25-Mar-02 3:04

howto create doc/view c#-apps?

25-Mar-02 3:04

Thanks,I don't know why I didn't see that property. Smile | :)

Mazy

"So,so you think you can tell,
Heaven from Hell,
Blue skies from pain,...
How I wish,how I wish you were here."
Wish You Were Here-Pink Floyd-1975

Rüpel25-Mar-02 1:34

Rüpel

25-Mar-02 1:34

when i choose project-new-c#-windows-app i only get one form and the corresponding class.

but when you look at the c#-scribble example in the msdn-lib, and especially the readme.txt-file there, you see that some wizzard created a "mainframe"- a "doc"- and a "view"-class. like in good old mfc-times Wink | ;)

so where is that wizzard? does anyone know? of course i could just take the scribble-code and change it to fit my needs, but i want to know the ide i'm working with. so where is that thing hiding?

i'm working with vs.net

thx in advance Rose | [Rose]

:wq

Mazdak25-Mar-02 1:33

25-Mar-02 1:33

Sorry Rupel,C# does not have Doc/View artichecture up to now.

Mazy

"So,so you think you can tell,
Heaven from Hell,
Blue skies from pain,...
How I wish,how I wish you were here."
Wish You Were Here-Pink Floyd-1975

Rüpel25-Mar-02 1:42

Rüpel

25-Mar-02 1:42

so these redmontonians build there examples with some next version we get in 6 months? Cry | :((

shame on them! Roll eyes | :rolleyes:

:wq

Neil Van Note27-Mar-02 19:09

Neil Van Note

27-Mar-02 19:09

I overheard somewhere, sometimes, some people actually write code themselves...
Eek! | :eek:

Rüpel27-Mar-02 23:45

Rüpel

27-Mar-02 23:45

sure? really? Laugh | :laugh:

what do you think i did that day? go and cry? i did code the thing myself - but if there is already a wheel invented, you don't have to do it again and again... right? Wink | ;)

:wq

I need help with this question

Kannan Kalyanaraman25-Mar-02 4:50

Kannan Kalyanaraman

25-Mar-02 4:50

There isnt any doc/view implementation in the framework.
But chris sells is developing something new, check out his page

genghis

hope this helps.

cheers
Kannan

25-Mar-02 0:21

Hi,

How would i go about making an external application, disappear from the task bar in windows?

If anyone can help me with some code sample or maybe a pointer i would appreciate it.

Re: I need help with this question

BLaZiNiX26-Mar-02 19:01

BLaZiNiX

26-Mar-02 19:01

app_form_name.ShowInTaskbar = false;

ListView with CheckedItems ???

gicio24-Mar-02 23:54

Any way to create a better looking TabControl?

24-Mar-02 23:54

how i can make it when a user click on one checked box in the listview that
the other checked boxes are unvisible?

thx

Pawel

24-Mar-02 23:27

Is there any way to create a TabControl that look better than the default control in VS.Net.
As an example, I'd love to be able to use an image as the actual tab, wich could give me the flexibility to create any color, shape and form on the tabs....

Please, if you have any tips on how to do this, let me know....

Re: Any way to create a better looking TabControl?

25-Mar-02 4:20

check out these guys. http://www.dotnetmagic.com/TabControl.html . just re-write what you want... its a bit of work to factor out the other two parts of their library, but its worth it. solid code... light documentation.

Replace parts of an object in an ArrayList.But how ???

gicio24-Mar-02 23:18

Overriding the Closing event

24-Mar-02 23:18

hi!

I have a problem:

here I read the data from the ArrayList into the ListView
with a checkBox (displayCarListView.CheckBoxes = true;

)public void ShowCar(ListView objectDisplayCarListView){ListView displayCarListView;displayCarListView = objectDisplayCarListView;foreach (Car car in carArrayList){MessageBox.Show(Convert.ToString(carArrayList.IndexOf(car)));int carIndex = carArrayList.IndexOf(car);ListViewItem newItem = newListViewItem(((Car)carArrayList[carIndex]).Manufacturer);newItem.SubItems.Add(((Car)carArrayList[carIndex]).Model );displayCarListView.Items.Add(newItem);}}

now I would take this data that was checked in the ListView and put it in
an other GUI with TextBoxes
(it should the index of the car in the ArrayList must transfer also to the
other GUI (but I don´t really know how! Wink | ;)

))
I try it so: (but without the index....thats work 100% .... but I need the
Index of the car...)

public void ChangeCar(ListView objectDisplayCarListView){ListView displayCarListView;displayCarListView = objectDisplayCarListView;Car currentCar = new Car();if (displayCarListView.CheckedItems[0].Checked){ChangeCarNow currentChangeCarNow = new ChangeCarNow(this);currentChangeCarNow.manufactoreTextBox.Text =displayCarListView.CheckedItems[0].Text;currentChangeCarNow.modelTextBox.Text =displayCarListView.CheckedItems[0].SubItems[1].Text;//here the other GUI is show......with the datacurrentChangeCarNow.Show();}}

in the GUI currentChangeCarNow(ChangeCarNow) it should be change the data of the car.
the changes data of the car I must put back exactly in the same place
where I take it out.
that's why I need the index of the car
have someone an idea how i can do this?

big thx!!

Pawel

24-Mar-02 21:39

I have written a C# windows application. However, when the program is running, and I want to shut down windows, every program closes except my C# program; and windows does not shut down. It just waits. When I close my program manually, windows shuts down without a problem. The cause is that I have overriden the Closing event of the main form like this:

private void WindowsCloserForm_Closing(object sender, System.ComponentModel.CancelEventArgs e)
{
e.Cancel = true;
OpenDialog(false);
}

I wanted this behaviour however: closing the form should not end the program, but just hide it. (Via an icon in the system tray you can close the program)

If I do not override the Closing event, this problem does not occur. Can this be a bug in the framework, or am I forgetting something? Roll eyes | :rolleyes:

Thanks!

Re: Overriding the Closing event

James T. Johnson24-Mar-02 21:51

James T. Johnson

24-Mar-02 21:51

Windows is just doing what you asked it to Smile | :)

You need to override the WndProc of the form and catch the WM_QUIT message, one of the parameters tells you what is telling the form to close; if its the user then you should continue as you do; otherwise let the program shutdown. Look up in MSDN what the values you need for WM_QUIT and what lParam and wParam are.

Almost had me stumped on this one, then I remembered I tried doing the same in an MFC program and that was what I had to do Smile | :)

James

Sonork ID: 100.11138 - Hasaki
"Smile your little smile, take some tea with me awhile.
And every day we'll turn another page.
Behind our glass we'll sit and look at our ever-open book,
One brown mouse sitting in a cage."
"One Brown Mouse" from Heavy Horses, Jethro Tull 1978

Re: Overriding the Closing event

David Wengier25-Mar-02 0:11

David Wengier

25-Mar-02 0:11

I hate it when I find things they have changed. VB used to have a nice event called QueryUnload, that told you why the form was closing (your code, user pressed X, windows shutting down etc.) and allowed to decide what to do.

Why does Microsoft insist on doing things? Changing the way it works I dont mind, but removing functionality altogether? Makes me angry sometimes.

</rant>

--
David Wengier

Sonork ID: 100.14177 - Ch00k

Create Control at Runtime

Mazdak24-Mar-02 20:50