Random Number from 6 to 86 - C# Discussion Boards

pbraun15-Aug-07 5:16

15-Aug-07 5:16

I need proof (besides the MSDN documentation) that int is always 32 bits. Will MS change their minds about the size of int in the future? Who can tell. For those reasons it is always best to ensure that you know the size of the variables that are in use.

Phil

Re: Question int or Int32

Judah Gabriel Himango15-Aug-07 6:28

Judah Gabriel Himango

15-Aug-07 6:28

pbraun wrote:
I need proof (besides the MSDN documentation) that int is always 32 bits.

Look at any books on the .NET framework, such as .NET Framework Standard Library Annotated Reference[^], or talk to anyone on the Base Class Library team blog[^]. System.Int32 is always 32 bits, and will always remain so.

Tech, life, family, faith: Give me a visit.
I'm currently blogging about: Just F-ing Do It Smile | :)
The apostle Paul, modernly speaking: Epistles of Paul

Judah Himango

lankaudaranga14-Aug-07 6:47

lankaudaranga

14-Aug-07 6:47

i want to create accont book using c#

Re: c#

kubben14-Aug-07 6:55

kubben

14-Aug-07 6:55

Well, I guess you should give it a go and let us know how it goes. No one here is going to write it for you. Once you start writing the code, if you run into specific problems you would like some help with, let us know and we will try to help you with your specific problem. If you are looking for something that is already written then seach the codeproject site or google.

Ben

Re: c#

Nouman Bhatti14-Aug-07 20:31

Nouman Bhatti

14-Aug-07 20:31

start from looking at some sample account books....
and make a work breakdown structure of your activities

and then start writing code for your each activity
and if u face any problem then write about it

Equalizer in C#

Sukhjinder_K14-Aug-07 5:46

Sukhjinder_K

14-Aug-07 5:46

Hi, I'm writing a Media Player App in C# and would like to know how can I implement an equaliser (bass, treble, etc) in it. Can it be done using DirectShow.NET. I've read that DirectSound provides me with an option. But I'm not too sure. I would prefer a C# soultion.

Thanks...

How I can save data in database from windatagrid?

isiran14-Aug-07 5:12

isiran

14-Aug-07 5:12

I' going to update database by using datagrid which is connected to data base by it's datasource.
I want to change data in datagrid and then save it in my data source(e.g. dataset) then update my database with this changed data (e.g. using update command of my adapter).
I want to do these things in my winApplication!
I don't know if datagrid has any event to do these things or not?
If not what should I do?
Thanks.

Random Number from 6 to 86

Sylenze14-Aug-07 4:39

Sylenze

14-Aug-07 4:39

Hello...
I'm new to C# and i want to train my skills with programming an Application
that looks at 3 progressbars and make the values of them "even", like
if pbar1's value is 34, it becomes 30, but if it is 36, it becomes 40.
I use it to test the Fuzzy logic dot net =x
Now this is the code i need help with:

<br />
<br />
<br />
        private void button2_Click(object sender, EventArgs e)<br />
        {<br />
            if (chkbx1.Checked)<br />
            {<br />
                vbar1.Value = Random;<br />
            }<br />
        }<br />
<br />
<br />

"button2" is my Object for generating random Numbers for those pbars with checked checkboxes...

Now how to get that random Value from 6 to 86? please help =(

Re: Random Number from 6 to 86

pmarfleet14-Aug-07 4:48

pmarfleet

14-Aug-07 4:48

Use the System.Random class...

Paul

Re: Random Number from 6 to 86

Sylenze14-Aug-07 4:51

Sylenze

14-Aug-07 4:51

System.Random is the same as Random D:
someone please explain me =(

Re: Random Number from 6 to 86

pmarfleet14-Aug-07 4:54

pmarfleet

14-Aug-07 4:54

Call the overload of System.Random.Next that accepts 2 arguments. The first is your min value, the second is your max value.

This is all explained in the documentation...

Paul

Re: Random Number from 6 to 86

Hessam Jalali14-Aug-07 4:56

Hessam Jalali

14-Aug-07 4:56

just create a new instance of Random class like

Random rnd=new Random();

use the next method for generating random number

int randomNumber=rnd.Next(6,86);

good luck

Re: Random Number from 6 to 86

Sylenze14-Aug-07 7:11

Sylenze

14-Aug-07 7:11

omg there is no next method...
Maybe i forgot a using directive?
there are only 2 methods on Random... it's
Equals
and
ReferenceEquals

Re: Random Number from 6 to 86

Sylenze14-Aug-07 7:14

Sylenze

14-Aug-07 7:14

ok nevermind i got it thanks!

Re: Random Number from 6 to 86

Stefan Troschuetz14-Aug-07 7:37

Stefan Troschuetz

14-Aug-07 7:37

Please consider that the second parameter is the exclusive upper bound of the random variate i.e. rnd.Next(6,86); will generate random numbers between 6 and 85. If you want the 86 to be generated too, the second parameter must be 87.

"Programming today is a race between software engineers striving to build bigger and better idiot-proof programs, and the Universe trying to produce bigger and better idiots. So far, the Universe is winning." - Rick Cook

www.troschuetz.de

Re: Random Number from 6 to 86

Sylenze14-Aug-07 8:02

Sylenze

14-Aug-07 8:02

Ok i've got another problem...
Now if you click on the "Make even!" button (for rounding up and off to 10~values, like 10 20 30 40)
i don't know what to put it...
I mean it should also be usable in other things like unknown values from 1~25233636 for example.

it's currently this:

<br />
            #region Vbar1<br />
<br />
            if (vbar1.Value = 6-10)<br />
            {<br />
                vbar1.Value = 10;<br />
            }<br />
<br />
            #endregion<br />

1. i don't know how to make it like "from 6 to 10", the - isn't working O__O

2. it's not really flexible and i have to make like 9 if handlers for every pbar...

<br />
            if (vbar1.Value > 6 & < 10 )<br />

isn't working too...

Re: Random Number from 6 to 86

Stefan Troschuetz14-Aug-07 8:08

Stefan Troschuetz

14-Aug-07 8:08

Divide the number by ten, round it and finally multiply with ten:

int x = 15;
x = (int)(Math.Round(x / 10.0) * 10.0);

Re: Random Number from 6 to 86 [modified]

Sylenze14-Aug-07 8:10

Sylenze

14-Aug-07 8:10

wow you'r really good in c# =O
Sorry i'm new to all this and i don't have much time for learning it...

hmm

<br />
            #region Vbar1<br />
<br />
            vbar1.Value x = 15;<br />
            x = (vbar1.Value)(Math.Round(x / 10.0) * 10.0);<br />
<br />
            #endregion<br />

the debugger says vbar1 is a field but it's used like a type @_@

and what's the 15 for?

-- modified at 14:15 Tuesday 14th August, 2007

Re: Random Number from 6 to 86

Sylenze14-Aug-07 9:37

Sylenze

14-Aug-07 9:37

okay thanks all for helping me =]

here's the source and exe:

hosted.filefront.com/sylenze

comparision problem

Xmen Real 14-Aug-07 4:20

Xmen Real

14-Aug-07 4:20

hi there,
i m doing comparision like this:

if (xmlnode[i].NextSibling.HasChildNodes  == true)

to know that is there any further node?

but when this codes is giving error after last node

the error is

Object reference not set to an instance of an object.

anybody knows the solution..?

Becoming Programmer...

Re: comparision problem

Vasudevan Deepak Kumar14-Aug-07 4:24

Vasudevan Deepak Kumar

14-Aug-07 4:24