Last row in foreach loop

[tshad]

Is there a way to know if you are looking at the last record record of
foreach loop other then setting up a loop counter that you manually
increment?

foreach (Racecar racecar in RaceCarCollecti on)
{
...

if last row do something?
}

You can tell how many items you have in the collection but is there way to
tell which row you are looking or if this is the last row?

Thanks,

Tom

[=?ISO-8859-1?Q?Bj=F8rn_Brox?=]

tshad skrev:

Is there a way to know if you are looking at the last record record of
foreach loop other then setting up a loop counter that you manually
increment?

foreach (Racecar racecar in RaceCarCollecti on)
{
...

if last row do something?
}

You can tell how many items you have in the collection but is there way to
tell which row you are looking or if this is the last row?

Not without counying an test against RaceCarCollecti on.Count (or .Length)

Why not use a for loop instead?
--
Bjørn Brox

[zacks]

On Feb 29, 4:02*pm, "tshad" <ts...@dslextre me.comwrote:

Is there a way to know if you are looking at the last record record of
foreach loop other then setting up a loop counter that you manually
increment?

foreach (Racecar racecar in RaceCarCollecti on)
{
* * ...

* * if last row do something?

}

You can tell how many items you have in the collection but is there way to
tell which row you are looking or if this is the last row?

Thanks,

Tom

Not as far as I am aware of. I have done someting like this with:

foreach (int i = 0; i < collection.Coun t; i++)
{
object = collection[i];
...
if (i == collection.Coun t - 1)
do something to the last object
}

[=?Utf-8?B?UGV0ZXIgQnJvbWJlcmcgW0MjIE1WUF0=?=]

Doubt it. I've always use a counter variable and compared to the length of
the collection. Not a big deal.
-- Peter
Site: http://www.eggheadcafe.com
UnBlog: http://petesbloggerama.blogspot.com
Short Urls & more: http://ittyurl.net
"tshad" wrote:

Is there a way to know if you are looking at the last record record of
foreach loop other then setting up a loop counter that you manually
increment?

foreach (Racecar racecar in RaceCarCollecti on)
{
...

if last row do something?
}

You can tell how many items you have in the collection but is there way to
tell which row you are looking or if this is the last row?

Thanks,

Tom

[Rene]

Besides what others have mentioned, here is another way to tackle your
problem without having to have a counter in case you had something against
counters.
Racecar lastRacecar;
foreach (Racecar racecar in RaceCarCollecti on)
{
lastRacecar = racecar;

// Do something...... .....
}
if(lastRacecar != null)
{
// Do last row stuff here...........
}

"tshad" <ts***@dslextre me.comwrote in message
news:%2******** ********@TK2MSF TNGP05.phx.gbl. ..

Is there a way to know if you are looking at the last record record of
foreach loop other then setting up a loop counter that you manually
increment?

foreach (Racecar racecar in RaceCarCollecti on)
{
...

if last row do something?
}

You can tell how many items you have in the collection but is there way to
tell which row you are looking or if this is the last row?

Thanks,

Tom

[christery]

On 29 Feb, 22:02, "tshad" <ts...@dslextre me.comwrote:

Is there a way to know if you are looking at the last record record of
foreach loop other then setting up a loop counter that you manually
increment?

foreach (Racecar racecar in RaceCarCollecti on)
{
* * ...

* * if last row do something?

}

You can tell how many items you have in the collection but is there way to
tell which row you are looking or if this is the last row?

Thanks,

Tom

Sounds like you should test doing that with a database, the price for
MySQL or if you want to go M$ SQLserverExpres s is nice (0$), a
pseudostatement like "readline() ; if next line is EOF..." is not too
hard to program logically but you get double the IO, and for
nothing.. or as mentioned check the length..
//CY

[zacks]

On Feb 29, 4:17*pm, za...@construct ion-imaging.com wrote:

On Feb 29, 4:02*pm, "tshad" <ts...@dslextre me.comwrote:

Is there a way to know if you are looking at the last record record of
foreach loop other then setting up a loop counter that you manually
increment?

foreach (Racecar racecar in RaceCarCollecti on)
{
* * ...

* * if last row do something?

}

You can tell how many items you have in the collection but is there way to
tell which row you are looking or if this is the last row?

Thanks,

Tom

Not as far as I am aware of. I have done someting like this with:

foreach (int i = 0; i < collection.Coun t; i++)
{
* * object = collection[i];
* * ...
* * if (i == collection.Coun t - 1)
* * * * do something to the last object

}

Sorry, that should be for instead of foreach.

[Darren]

You can get the enumerator then use Reset, Current, & MoveNext but it's ugly.

IEnumerator<Rac eCare = RaceCarCollecti on.GetEnumerato r();
e.Reset();
bool isValid = e.MoveNext();
while (isValid)
{
RaceCar car = e.Current;
isValid = e.MoveNext();
if ( !isValid )
{
// this is the last car
}
}
tshad wrote:

Is there a way to know if you are looking at the last record record of
foreach loop other then setting up a loop counter that you manually
increment?

foreach (Racecar racecar in RaceCarCollecti on)
{
...

if last row do something?
}

You can tell how many items you have in the collection but is there way to
tell which row you are looking or if this is the last row?

Thanks,

Tom

[=?Utf-8?B?RmFtaWx5IFRyZWUgTWlrZQ==?=]

"tshad" wrote:

Is there a way to know if you are looking at the last record record of
foreach loop other then setting up a loop counter that you manually
increment?

foreach (Racecar racecar in RaceCarCollecti on)
{
...

if last row do something?
}

You can tell how many items you have in the collection but is there way to
tell which row you are looking or if this is the last row?

Thanks,

Tom

Won't the following work? I can't say it's efficient...

if (racecar == RaceCarCollecti on [RaceCarCollecti on.count - 1])
{
// do something...
}

>

[Jon Skeet [C# MVP]]

On Mar 1, 1:50 am, Family Tree Mike
<FamilyTreeM... @discussions.mi crosoft.comwrot e:

Won't the following work? I can't say it's efficient...

if (racecar == RaceCarCollecti on [RaceCarCollecti on.count - 1])
{
// do something...

}

That entirely depends on the type of RaceCarCollecti on. If it's just
an IEnumerable<T>, it doesn't have a Count property.

Jon