searching an array list

[jonny]

Hey

I need to search an array list to remove duplicate Data
The list is populated by a search function that enters in a name if the it is told too

This causes duplicate names to be entered into the array, the search function is not changable

e.

the array list has 5 values "jonny", I need to remove all the values but the 1st. The array can have several differnet copies of one name

Thanks

/Jonny

[Rami Saad]

Hi Jonny,
Check out the forum answers in this link
http://www.experts-exchange.com/Prog..._20824139.html
I think it will help you

--
Rami Saad
Microsoft GTSC Developer support for Middle East
"jonny" <jo************ *****@hotmail.c om> wrote in message
news:78******** *************** ***********@mic rosoft.com...

Hey,

I need to search an array list to remove duplicate Data.
The list is populated by a search function that enters in a name if the it is told too.
This causes duplicate names to be entered into the array, the search function is not changable.
e.g

the array list has 5 values "jonny", I need to remove all the values but the 1st. The array can have several differnet copies of one name.
Thanks,

/Jonny

[Tim Smelser]

On Wed, 25 Feb 2004 04:41:05 -0800, jonny wrote:

Hey,

I need to search an array list to remove duplicate Data.
The list is populated by a search function that enters in a name if the it is told too.

This causes duplicate names to be entered into the array, the search function is not changable.

e.g

the array list has 5 values "jonny", I need to remove all the values but the 1st. The array can have several differnet copies of one name.

Thanks,

/Jonny

One solution is to first sort the array, then loop through it. If an
items value is the same as the previous item, delete it.

HTH,
Tim
--
Tim Smelser - MVP Visual C#
To email me, make the snot hot.

[Marcin Grzębski]

jonny wrote:

Hey,

I need to search an array list to remove duplicate Data.
The list is populated by a search function that enters in a name if the it is told too.

This causes duplicate names to be entered into the array, the search function is not changable.

e.g

the array list has 5 values "jonny", I need to remove all the values but the 1st. The array can have several differnet copies of one name.

Try this:

// filledArrayList - your ArrayList
int index;

for(int i=0; i<(filledArrayL ist.Count-1); i++) {
index=filledArr ayList.IndexOf( filledArrayList[i], i+1);
while( index>i ) {
filledArrayList .Remove(index);
if( i<(filledArrayL ist.Count-1) ) {
index=filledArr ayList.IndexOf( filledArrayList[i], i+1);
}
else {
index=-1;
}
}
}

Regards

Marcin

[Vadym Stetsyak]

maybe you should use Hashtable class instead of an ArrayList?

"jonny" <jo************ *****@hotmail.c om> wrote in message
news:78******** *************** ***********@mic rosoft.com...

Hey,

I need to search an array list to remove duplicate Data.
The list is populated by a search function that enters in a name if the it is told too.
This causes duplicate names to be entered into the array, the search function is not changable.
e.g

the array list has 5 values "jonny", I need to remove all the values but the 1st. The array can have several differnet copies of one name.
Thanks,

/Jonny