HOW TO DELETE DUPLICATE ITEMS IN THE LIST IN C#.

[TARAK]

HOW TO DELETE DUPLICATE ITEMS IN THE LIST IN C#.

the name of the list is "DBInstanceSpecificAssetAccessList" having 10
items.

But it has same records in several rows.

for example : DBInstanceSpecificAssetAccessList[0]----->"TARAK"
DBInstanceSpecificAssetAccessList[3]----->"TARAK"
DBInstanceSpecificAssetAccessList[4]----->"TARAK"
DBInstanceSpecificAssetAccessList[5]----->"AMIT"
DBInstanceSpecificAssetAccessList[6]----->"AMIT"

HOW CAN I DELETE THE DUPLICATE ITEMS ....

CAN ANY ONE PLEASE SUGGEST ME WHAT I NEED TO DO...


WITH REGARDS

[Cerebrus]

Not until you learn to type in proper case.

[rhaazy]

static List<string> removeDuplicates(List<string> inputList)
{
Dictionary<string, int> uniqueStore = new Dictionary<string, int>();
List<string> finalList = new List<string>();

foreach (string currValue in inputList)
{
if (!uniqueStore.ContainsKey(currValue))
{
uniqueStore.Add(currValue, 0);
finalList.Add(currValue);
}
}
return finalList;
}

You may have to adjust this to meet your specific needs, but the
concept is simple enough to demonstrate.
You need to create a new list of the same type and asign it the value
of what is returned from the removeDuplicates function.

> > WITH REGARDS- Hide quoted text -
>
> - Show quoted text -

[AstroDrabb]

On Tue, Nov 25, 2008 at 5:27 AM, TARAK <tara...@gmail.com> wrote:

HOW TO DELETE DUPLICATE ITEMS IN THE LIST IN C#.

 the name of the list is "DBInstanceSpecificAssetAccessList" having 10
items.

Did you really, really name a variable "DBInstanceSpecificAssetAccessList"?

[Muhammad Arif]

Little Changes in the rhaazy Function 

List<string> removeDuplicates(List<string> inputList)

replace the parameter List<string> inputlist to IList<string> inputList

List<string> removeDuplicates(IList<string> inputList)

the rest works fine.

Regards

--
Muhammad Arif
Software Engineer
+923009347315

[shini gupta]

U can do it by storeProc simply.
Select Distinct values only whn bind the list.

[CK]

Slightly better version (untested):

static List<T> removeDuplicates(List<T> inputList)
{
Dictionary<T, int> uniqueStore = new Dictionary<T, int>();
List<T> finalList = new List<T>();

foreach (T currValue in inputList)

> > - Show quoted text -- Hide quoted text -

[Cerebrus]

I bet it's one of the shorter ones ! :P

On Nov 26, 8:23 am, AstroDrabb <astrodr...@gmail.com> wrote:

[asit]

static List<T> removeDuplicates(List<T> inputList)
{
Dictionary<T, int> uniqueStore = new Dictionary<T, int>();
List<T> finalList = new List<T>();

foreach (T currValue in inputList)
{
if (!uniqueStore.ContainsKey(currValue))
{
uniqueStore.Add(currValue, 0);
finalList.Add(currValue);
}
}
return finalList;

}

before calling the above function, sort the list. It will be faster.

[CK]

sorry, I win :)