arrays and parse enumerators

[tony collier]

I have

.....

enum day {monday, tuesday, wednesday};

myArray[2,2]=5;

i=(int)Enum.Par se(typeof(day), wednesday);

Console.Writeli ne(i);

Console.Writeli ne(myArray[2,2]);
outputs:

2
5

as expected. If i try

Console.Writeli ne(myArray[i,i]);
i get index outside bound of array error. Any ideas anyone?

[Josh [MS.Com]]

Had to correct a couple of syntax errors, this compiles and works;

Other than some "" missing in the Enum.Parse call and Console.WriteLi ne not
having a capital "L", I couldn't see any errors.

Josh
Microsoft.com Tools

//
public class Tester
{
enum day {monday, tuesday, wednesday};
[STAThread]
static void Main(string[] args)
{

int[,] myArray = new int[3,3];

myArray[2,2]=5;

int i=(int)Enum.Par se(typeof(day), "wednesday" );

Console.WriteLi ne(i);

Console.WriteLi ne(myArray[2,2]);

Console.WriteLi ne(myArray[i,i]);

}
}
//
"tony collier" <me*****@hotmai l.com> wrote in message
news:Xn******** *************** ********@140.99 .99.130...

I have

....

enum day {monday, tuesday, wednesday};

myArray[2,2]=5;

i=(int)Enum.Par se(typeof(day), wednesday);

Console.Writeli ne(i);

Console.Writeli ne(myArray[2,2]);
outputs:

2
5

as expected. If i try

Console.Writeli ne(myArray[i,i]);
i get index outside bound of array error. Any ideas anyone?

[Jon Skeet [C# MVP]]

tony collier <me*****@hotmai l.com> wrote:

I have

....

enum day {monday, tuesday, wednesday};

myArray[2,2]=5;

i=(int)Enum.Par se(typeof(day), wednesday);

Console.Writeli ne(i);
Console.Writeli ne(myArray[2,2]);

outputs:

2
5

as expected. If i try

Console.Writeli ne(myArray[i,i]);

i get index outside bound of array error. Any ideas anyone?

Could you show a short but complete program which demonstrates the
problem?

--
Jon Skeet - <sk***@pobox.co m>
http://www.pobox.com/~skeet
If replying to the group, please do not mail me too

[tony collier]

Jon Skeet [C# MVP] <sk***@pobox.co m> wrote in
news:MP******** *************** *@msnews.micros oft.com:

tony collier <me*****@hotmai l.com> wrote:

I have

....

enum day {monday, tuesday, wednesday};

myArray[2,2]=5;

i=(int)Enum.Par se(typeof(day), wednesday);

Console.Writeli ne(i);
Console.Writeli ne(myArray[2,2]);

outputs:

2
5

as expected. If i try

Console.Writeli ne(myArray[i,i]);

i get index outside bound of array error. Any ideas anyone?

Could you show a short but complete program which demonstrates the
problem?

asp.net based project>>>
in global.asax :>

......
void Session_Start(O bject Sender, EventArgs e)
{

string [,] pricetable=new string [5,12];

Session["pricetable "]=pricetable;
}

............

in page_load
enum bookstores

{
Amazon,
Blackwells,
CoopBookshop,
CountryBookshop ,
HistoryBookshop com,
StudentBookWorl dcom,
Swotbooks,
TescoBookStore,
TheBookPlace,
WHSmithOnline,
WHSmithOnlineSD ,
ComputerManuals ,
ComputerBooks
};

StringBuilder RawHtml=new StringBuilder() ;

RawHtml.Append( load of screenscraped data );

StringBuilder Bookstore=new StringBuilder() ;

string [,] pricetable= (string[,])Session["pricetable "];

string price="";

int storeno;

//grab bookstore data between > and < html tags that will correspond
to one of the enum bookstore elements

startindex=RawH tml.ToString(). IndexOf(">",sta rtindex)+1;

endindex=RawHtm l.ToString).Ind exOf"<",startin dex);

Bookstore.Appen d(RawHtml.ToStr ing().Substring (startindex, endindex-
startindex));
// set storeno equal to integer corresponding to bookstore element

storeno=(int)En um.Parse(typeof (bookstores),Bo okstore.ToStrin g());
/* cut out more data from RawHtml and store in pricetable array which is
indexed with a direct correlation between stores and their enumerated
values*/
startindex=RawH tml.ToString(). IndexOf("egen>" ,startindex)+5;

endindex=RawHtm l.ToString().In dexOf("<",start index);

price=RawHtml.T oString().Subst ring(startindex , endindex-startindex);

pricetable[storeno]=price;

and this is where i get the error. if i do a response.write for storeno
it returns an integer correlating to enum bookstore values and if i do a
response.write for pricetable[0 upto 10 or whatever] this works fine
also.

[Jon Skeet [C# MVP]]

tony collier <me*****@hotmai l.com> wrote:
<snip>

asp.net based project>>>

It's hard to get all that going - please convert it to a simple console
app which basically does nothing apart from showing the bug.

However, I do note that you've got new string[5,12] despite the fact
that there are 13 stores. Also, I'm not convinced that

pricetable[storeno]=price;

is going to work when pricetable is a 2D array...

--
Jon Skeet - <sk***@pobox.co m>
http://www.pobox.com/~skeet
If replying to the group, please do not mail me too

[tony collier]

Jon Skeet [C# MVP] <sk***@pobox.co m> wrote in
news:MP******** *************** *@msnews.micros oft.com:

tony collier <me*****@hotmai l.com> wrote:
<snip>

asp.net based project>>>

It's hard to get all that going - please convert it to a simple console
app which basically does nothing apart from showing the bug.

However, I do note that you've got new string[5,12] despite the fact
that there are 13 stores. Also, I'm not convinced that

pricetable[storeno]=price;

is going to work when pricetable is a 2D array...

spot on jon. The whole thing was wrapped in a loop which gave me the
second index for pricetable which i omitted from the example and as you
correctly identified the problem was a really dumb one where i should have
set the pricetable array to [5,13].

I can't stress how impressed i am with all your help. thankyou very much.