Student needs help

[drg]

My assignment is to have a user add scores to a listbox then write a
method to find the highest and lowest score in the list.

I am able to get and display the first index or the last index, or even
count the number of indexes, via foreach, if, while and for loops. I
can't seem to check each individual index against a common int to find
the highest or lowest.

I am using Visual C# Express edition 2005 and creating a Windows
Application.

I'm not asking for you to do my assignment I just need a hint, a clue --
something.

DRG

 

[Ignacio Machin \( .NET/ C# MVP \)]

Hi,

Where are you stuck?

 

[RichB]

Is it the high and low score you are not able to get?

If so get a list of scores on a piece of paper and work out how You would
decide which is the lowest and highest number.... do it without thinking
about code, but work from the top of the list to the bottom.

come back if this is not enough of a hint....

Richard

 

[JamesB]

My assignment is to have a user add scores to a listbox then write a
method to find the highest and lowest score in the list.

I am able to get and display the first index or the last index, or even
count the number of indexes, via foreach, if, while and for loops. I
can't seem to check each individual index against a common int to find the
highest or lowest.

I am using Visual C# Express edition 2005 and creating a Windows
Application.

I'm not asking for you to do my assignment I just need a hint, a clue --
something.

I do this sort of thing by having a variable called "CurrentHighScore" or
something.
Set to zero to start off
Loop through your results, and if a score is higher than the current high
score, update the current high score.
At the end, the high score is the... er, high score.

 

[rhaazy]

Ya, use Jame's approach.
Start with two variables High, Low
Set High to be something like -1
and set Low to a number higher then any number you would have to deal
with.
Then for high, if a number is higher than High, make it the new high
number, same logic for low number.

 

[Mythran]

Ya, use Jame's approach.
Start with two variables High, Low
Set High to be something like -1
and set Low to a number higher then any number you would have to deal
with.
Then for high, if a number is higher than High, make it the new high
number, same logic for low number.

There are two constants that I would use instead of some arbitrary starting
numbers...

If you are using an 'int' value, I would use int.MaxValue for the starting
LOW number and int.MinValue for the starting HIGH number.

HTH,
Mythran

 

[drg]

Thanks for the help everyone. It seems that the line of code I was
missing was:

firstScore = int.Parse(lstScores.Items[scoreIndex].ToString());

without that I was not able to advance to the next index.

thanks again and as Arnold would say "I'll be back",

drg