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simple question about linq

Hello!

If I have this simple linq construction

var temp = from o in myWorksheetList
where o.ID == workSheetID
select o.subFileID;

This will always give only a singe record in temp which is the result from
selct o.subfileID

If I now want to get the string value from this temp collection what is the
easiest way to do this.

Some thing like
string myID = temp.ToString() ;

//Tony

Oct 1 '08 #1
10 997
Tony Johansson wrote:
Hello!

If I have this simple linq construction

var temp = from o in myWorksheetList
where o.ID == workSheetID
select o.subFileID;

This will always give only a singe record in temp which is the result
from selct o.subfileID

If I now want to get the string value from this temp collection what is the
easiest way to do this.

Some thing like
string myID = temp.ToString() ;

//Tony
That will probably give you a string with the data type...

string myID = temp.First();

or perhaps

string myID = temp[0];

--
Göran Andersson
_____
http://www.guffa.com
Oct 1 '08 #2
Hello!

This doesn' work because you get compile error.

//Tony

"Göran Andersson" <gu***@guffa.co mwrote in message
news:ev******** ******@TK2MSFTN GP02.phx.gbl...
Tony Johansson wrote:
>Hello!

If I have this simple linq construction

var temp = from o in myWorksheetList
where o.ID == workSheetID
select o.subFileID;

This will always give only a singe record in temp which is the result
from selct o.subfileID

If I now want to get the string value from this temp collection what is
the
easiest way to do this.

Some thing like
string myID = temp.ToString() ;

//Tony

That will probably give you a string with the data type...

string myID = temp.First();

or perhaps

string myID = temp[0];

--
Göran Andersson
_____
http://www.guffa.com
Oct 1 '08 #3
It should have worked fine if o.subFileID is defined as a string. You did
not say how it was defined. Perhaps: string myID = temp.First().To String();

"Tony Johansson" wrote:
Hello!

This doesn' work because you get compile error.

//Tony

"Göran Andersson" <gu***@guffa.co mwrote in message
news:ev******** ******@TK2MSFTN GP02.phx.gbl...
Tony Johansson wrote:
Hello!

If I have this simple linq construction

var temp = from o in myWorksheetList
where o.ID == workSheetID
select o.subFileID;

This will always give only a singe record in temp which is the result
from selct o.subfileID

If I now want to get the string value from this temp collection what is
the
easiest way to do this.

Some thing like
string myID = temp.ToString() ;

//Tony
That will probably give you a string with the data type...

string myID = temp.First();

or perhaps

string myID = temp[0];

--
Göran Andersson
_____
http://www.guffa.com

Oct 1 '08 #4
Hello!

If I use ToArray() on the temp object and then use ToString() I get the
value that
I was looking for.
string subfile = temp.ToArray()[0].ToString();

Is there an easier way or this might be one of the better ways.

//Tony

"Family Tree Mike" <Fa************ @discussions.mi crosoft.comskre v i
meddelandet news:28******** *************** ***********@mic rosoft.com...
It should have worked fine if o.subFileID is defined as a string. You did
not say how it was defined. Perhaps: string myID =
temp.First().To String();

"Tony Johansson" wrote:
>Hello!

This doesn' work because you get compile error.

//Tony

"Göran Andersson" <gu***@guffa.co mwrote in message
news:ev******* *******@TK2MSFT NGP02.phx.gbl.. .
Tony Johansson wrote:
Hello!

If I have this simple linq construction

var temp = from o in myWorksheetList
where o.ID == workSheetID
select o.subFileID;

This will always give only a singe record in temp which is the result
from selct o.subfileID

If I now want to get the string value from this temp collection what
is
the
easiest way to do this.

Some thing like
string myID = temp.ToString() ;

//Tony

That will probably give you a string with the data type...

string myID = temp.First();

or perhaps

string myID = temp[0];

--
Göran Andersson
_____
http://www.guffa.com


Oct 1 '08 #5
Tony Johansson wrote:
Hello!

This doesn' work because you get compile error.

//Tony
Which compiler error?

And which of the methods did you try?

--
Göran Andersson
_____
http://www.guffa.com
Oct 1 '08 #6
Tony Johansson wrote:
Hello!

If I use ToArray() on the temp object and then use ToString() I get the
value that
I was looking for.
string subfile = temp.ToArray()[0].ToString();

Is there an easier way or this might be one of the better ways.

//Tony
What type is subFileID? Does it make sense to convert it to a string?

temp.First() returns the first item in the result, so it's type is the
same type as subFileID.

--
Göran Andersson
_____
http://www.guffa.com
Oct 1 '08 #7
Hello!

In this linq query below we have the following types.
WorksheetList is type List<worksheeta nd
type o.subFile is string.
so worksheet.subFi le is a string

var temp = from o in myWorksheetList
where o.ID == workSheetID
select o.subFileID;
So when I do this statement I will receive the string in subfile
string subfile = temp.ToArray()[0].ToString();

So I do think is one of the better alternatives.

//Tony
"Göran Andersson" <gu***@guffa.co mwrote in message
news:ef******** ********@TK2MSF TNGP03.phx.gbl. ..
Tony Johansson wrote:
>Hello!

This doesn' work because you get compile error.

//Tony

Which compiler error?

And which of the methods did you try?

--
Göran Andersson
_____
http://www.guffa.com
Oct 2 '08 #8
Tony Johansson wrote:
Hello!

In this linq query below we have the following types.
WorksheetList is type List<worksheeta nd
type o.subFile is string.
so worksheet.subFi le is a string
But what type is the field subFileID, which is the field that you use in
the query?

Or perhaps you use the wrong field in the query, and that is the main
reason that you have trouble getting the correct data from it?
>
var temp = from o in myWorksheetList
where o.ID == workSheetID
select o.subFileID;
So when I do this statement I will receive the string in subfile
string subfile = temp.ToArray()[0].ToString();

So I do think is one of the better alternatives.

//Tony
"Göran Andersson" <gu***@guffa.co mwrote in message
news:ef******** ********@TK2MSF TNGP03.phx.gbl. ..
>Tony Johansson wrote:
>>Hello!

This doesn' work because you get compile error.

//Tony

Which compiler error?

And which of the methods did you try?

--
Göran Andersson
_____
http://www.guffa.com

--
Göran Andersson
_____
http://www.guffa.com
Oct 2 '08 #9
Hello!

subFileID is a string
//Tony
"Göran Andersson" <gu***@guffa.co mwrote in message
news:uG******** ******@TK2MSFTN GP05.phx.gbl...
Tony Johansson wrote:
>Hello!

In this linq query below we have the following types.
WorksheetLis t is type List<worksheeta nd
type o.subFile is string.
so worksheet.subFi le is a string

But what type is the field subFileID, which is the field that you use in
the query?

Or perhaps you use the wrong field in the query, and that is the main
reason that you have trouble getting the correct data from it?
>>
var temp = from o in myWorksheetList
where o.ID == workSheetID
select o.subFileID;
So when I do this statement I will receive the string in subfile
string subfile = temp.ToArray()[0].ToString();

So I do think is one of the better alternatives.

//Tony
"Göran Andersson" <gu***@guffa.co mwrote in message
news:ef******* *********@TK2MS FTNGP03.phx.gbl ...
>>Tony Johansson wrote:
Hello!

This doesn' work because you get compile error.

//Tony
Which compiler error?

And which of the methods did you try?

--
Göran Andersson
_____
http://www.guffa.com


--
Göran Andersson
_____
http://www.guffa.com
Oct 2 '08 #10

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