C# Discussion Boards - CodeProject

Re: User Input Into Array, Need To Check Array Member If It Is Greater Then 100 Or Less Then 0

9-Sep-09 22:11

I noticed when debugging that i is always equal to 0...

SeMartens9-Sep-09 22:12

Re: User Input Into Array, Need To Check Array Member If It Is Greater Then 100 Or Less Then 0

9-Sep-09 22:12

Okay, could you post the code with all your changes again. I'm not sure what you changed and what not... Did you forgot the i++ in the for-loop?

It's not a bug, it's a feature!

Check out my CodeProject article Permission-by-aspect.

Me in Softwareland.

Sivyo9-Sep-09 22:14

Re: User Input Into Array, Need To Check Array Member If It Is Greater Then 100 Or Less Then 0

9-Sep-09 22:14

public set(int[] intSet)
       {
           this.boolSet = new bool[101];


           for (int i = 0; i < intSet.Length;i++)

               if (intSet[i] > 0 && intSet[i] < 100)
               {

                   boolSet[intSet[i]] = true;

               }
               else
               {

                  boolSet[intSet[i]] = false;
               }
           }
       }

would it be easier to check the range when user inserts numbers?

int[] userIn = new int[3];

     bool flag = false;
     while (flag ==false)
     {
         Console.WriteLine("User, please enter 3 number 0 - 100");
         for (int i = 0; i < userIn.Length; i++)
         {
             if (Int32.TryParse(Console.ReadLine(), out userIn[i]))
                 flag = true;

         }
     }

That is in main

SeMartens9-Sep-09 22:19

Re: User Input Into Array, Need To Check Array Member If It Is Greater Then 100 Or Less Then 0

9-Sep-09 22:19

Is the app crashing in the main-method or within the set-method? The set-method seems to be okay...

It's not a bug, it's a feature!

Check out my CodeProject article Permission-by-aspect.

Me in Softwareland.

Sivyo9-Sep-09 22:21

Re: User Input Into Array, Need To Check Array Member If It Is Greater Then 100 Or Less Then 0

9-Sep-09 22:21

its crashing as soon as after the 3 numbers are entered. Maybe it would be better if one of the numbers is checked first then inserted into the array...

DavodM9-Sep-09 22:33

Re: User Input Into Array, Need To Check Array Member If It Is Greater Then 100 Or Less Then 0

9-Sep-09 22:33

Your crash is likely coming from here:

else
{
                 
    boolSet[intSet[i]] = false; 
}

If intSet[i] is greater than 100 or less then 0(lets say its 103) we go into the else block. Your boolSet array only has 101 items in it so trying to access boolSet[103] will raise and arrayOutOfBoundsException (or something similar) is that the message you see?

Also can you state the programs goals more clearly? What information should boolSet hold?

Sivyo9-Sep-09 22:39

Re: User Input Into Array, Need To Check Array Member If It Is Greater Then 100 Or Less Then 0

9-Sep-09 22:39

boolSet should hold weather or no each array has been chosen.

Example in an array of 5 and the numbers 1 2 3 5 were chosen then...

0 = False, 1 = False, 2 = true, 3 = True, 4 = False, 5 = True

so the program will show on the Console Write line 1 2 3 5

SO I have random numbers from 0 to 100 chosen in order to create 2 separate sets.

Then the user must insert 3 numbers to create a userSet. This is where I am having problems. If the user stays in range ect. then it works fine. But when he/she doesn't... well... I get out of bounds error. I know there must be an easier way of doing it... but I really don't have any experience

DavodM9-Sep-09 22:53

Re: User Input Into Array, Need To Check Array Member If It Is Greater Then 100 Or Less Then 0

9-Sep-09 22:53

I see. It should be a fairly easy fix then. (although you have some other problems in your user input code)

The easiest way to fix the crash is to remove the else block completely. Think about it, if intSet[i] is not between 0 and 100 there is not an entry in the boolSet array to hold the information, and in fact you don't need one if you only care about the numbers 0 to 100 anyway!

The best way with your current code would be to have all the elements in boolSet set to false to start with then let the code you already have set to true the ones the user entered.

For the problems with your input code, try entering 1, 2, d. Cool | :cool:

Also if you have the requirements from the assignment posting them here (or the relevant parts) would give us a clear idea of what you have to achieve. (note I have no intention of doing your homework for you but im quite happy to you help you with problems as you have been doing the work yourself so far! Laugh | :laugh:

)

Sivyo9-Sep-09 23:05

Re: User Input Into Array, Need To Check Array Member If It Is Greater Then 100 Or Less Then 0

9-Sep-09 23:05

yea I figured that,

there are two parts, the first part...

Write a class that will be used for creating sets of whole numbers in the range of 0…100. Implement the sets with a Boolean array. Define in the class the following operations:
1. A constructor without parameters, which initialize the set as an empty set.
2. A constructor that gets an array of wholes and creates a set that contains those array members.

9. Override the methods ToString and Equals that inherit from Object in the following way:
10. ToString – will return a string representation of the set.

Part two is where the user comes in

Write a program that checks the sets class in the following way:
• Create 2 sets by drawing 10 random numbers in the range of 0…100 for each set, and display the sets contents.
• Perform intersection and union of the two sets and display the received sets.
• Get from the user 3 numbers and create a third set. Check whether this set is a sub-set of one of the sets and display the result.

I am also having problems that after I create union and intersection, there is only one set and not two and the originals die...

I haven't played around with that yet so not going to ask for help with it yet.

DavodM9-Sep-09 23:18

Re: User Input Into Array, Need To Check Array Member If It Is Greater Then 100 Or Less Then 0

9-Sep-09 23:18

Looks like an interesting assignment. Are you still having problems with the previous bits?

Sivyo9-Sep-09 23:23

Re: User Input Into Array, Need To Check Array Member If It Is Greater Then 100 Or Less Then 0

9-Sep-09 23:23

nah, don't have a problem with the strange 0, for some reason its not there anymore.

Sivyo9-Sep-09 23:12

Re: User Input Into Array, Need To Check Array Member If It Is Greater Then 100 Or Less Then 0

9-Sep-09 23:12

found another issue... I insert 3 6 fg and get an output of 4 7....

DavodM9-Sep-09 23:23

Re: User Input Into Array, Need To Check Array Member If It Is Greater Then 100 Or Less Then 0

9-Sep-09 23:23

Im guessing you had been round the for loop a couple of times before you put the right input in?

I would suggest scrapping the user input code and starting again, sometimes its easier than fixing something.

You might want to break it down into smaller chunks, i.e get the input and store as a string, then try parsing it to an int and then if that works add it to the array, if not ask the user again. Repeat the above 3 times and bingo!

The code will be more verbose but it will be easier to debug and understand and once you have it working you can always go back over it and refactor it.

Terse code can look better but it can also be hard to understand and maintain.

Sivyo9-Sep-09 23:31

Re: User Input Into Array, Need To Check Array Member If It Is Greater Then 100 Or Less Then 0

9-Sep-09 23:31

I will do just that...

Going to go to the school and see if I can work on it there and get some more help.

Thanks everyone for trying to help me out, if anyone else can help out still that would be great, will pop in here often, C# is killing me

DavodM9-Sep-09 23:35

Re: User Input Into Array, Need To Check Array Member If It Is Greater Then 100 Or Less Then 0

9-Sep-09 23:35

You'll get your head round it eventually! Its just a matter of getting used to the way of thinking. I'm assuming this is your first programming language?

Sivyo9-Sep-09 23:39

Re: User Input Into Array, Need To Check Array Member If It Is Greater Then 100 Or Less Then 0

9-Sep-09 23:39

we learned C and C++ but I was never very good at it, and every time we learn a new language the problems become more difficult. Also, we only study each language up to 2 or 3 months, its a 2 year college.

Sivyo10-Sep-09 12:06

Re: info on Evidence class

10-Sep-09 12:06

well, thanks to everyone for their help, I finished the assingment and now just hoping I did it well...

got things done easier but don't think it was a very efficiant way.

well, lets hope for the best

info on Evidence class

manustone9-Sep-09 19:59

manustone

9-Sep-09 19:59

Hi all
I am trying to understand the Evidence class, but I am missing some point.
If I use the AddAssembly() method below in the main of my program,
am I supposed to expect to have my program signed with that strong name?

What's main use case for Evidence class?
Thanks
Mn

<br />
string sPubKeyBlob = "00240000048000009400000006020000" +<br />
            "00240000525341310004000001000100" +<br />
            "19390E945A40FB5730204A25FA5DC4DA" +<br />
            "B18688B412CB0EDB87A6EFC50E2796C9" +<br />
            "B41AD3040A7E46E4A02516C598678636" +<br />
            "44A0F74C39B7AB9C38C01F10AF4A5752" +<br />
            "BFBCDF7E6DD826676AD031E7BCE63393" +<br />
            "495BAD2CA4BE03B529A73C95E5B06BE7" +<br />
            "35CA0F622C63E8F54171BD73E4C8F193" +<br />
            "CB2664163719CA41F8159B8AC88F8CD3";<br />
            Byte[] pubkey = HexsToArray(sPubKeyBlob);<br />
<br />
            StrongName sn = new StrongName(<br />
                new System.Security.Permissions.StrongNamePublicKeyBlob(pubkey),<br />
                "Manu",new Version(2,1,1,0));<br />
<br />
            object[] z = new object[]{ <br />
                new Zone(SecurityZone.Internet), sn };<br />
            Evidence ev = new Evidence();<br />
            ev.AddAssembly(z);<br />

SeMartens9-Sep-09 21:28

Re: How to access Cache Data

9-Sep-09 21:28

Hi,

it seems that the Evidence-class has something to do with Security Policies. I would suggest reading the MSDN for that:

http://msdn.microsoft.com/en-us/library/system.security.policy.evidence.aspx[^]

And another link discussing the security features and how they interact:

http://www.csharphelp.com/archives/archive189.html[^]

Regards
Sebastian

It's not a bug, it's a feature!

Check out my CodeProject article Permission-by-aspect.

Me in Softwareland.

How to access Cache Data

sjs4u9-Sep-09 19:52

sjs4u

9-Sep-09 19:52

Hi,

I have 2 machine which is in LAN. 1st Machine is Admin and other machine is Customer. There is one online application where SuperAdmin create the user Admin and assign access rights to Admin.

When Admin connect to online application it is using username and password to connect to online application which is created by SuperAdmin. Admin has its own control panel where he can create user and assign username and password to his(Admin's) user which is in LAN.

At the Admin Side one windows application is used where onle Admin can connect to online applications database. If his subuser login he dont have access to connect to the online applications database. At the admin side there is no database. Admin can connect to the online database,get the required details and stored it into cache.

Here Admin's User(subuser) can access the cache data,modify or delete the data and again store it into the cache. So that once the operation completed it will store it into the cache and then update the online database.

Admin's user connect to admin's compuer through LAN only and only Admin can connect to the online database.

Now I want Solution for that where I dont want to use any database at the Admin's position. Admin can access the online database using web service.
but for his user want to setup cache(or any other solution) so that his user can access the data.

That is my scenario is there is main online database where admin use his data and that is share with his user. His user don't have any access to the online database.

So how can i use cache on the admins subusers side. How can i access cache data.

Thanks
sjs4u

SeMartens9-Sep-09 21:34