-most transaction. (The one originally created in P1)  This changes the transaction count from the time before P2 was called, until after it was executed.
If you expect a procedure to affect the transaction count, you could call the procedure in a Try-Catch to be able to handle the informational message you get back.
From MSDN:
In stored procedures, ROLLBACK TRANSACTION statements without a savepoint_name
or transaction_name roll back all statements to the outermost BEGIN TRANSACTION.
A ROLLBACK TRANSACTION statement in a stored procedure that causes @@TRANCOUNT
to have a different value when the stored procedure completes than the
@@TRANCOUNT value when the stored procedure was called produces an informational
message. This message does not affect subsequent processing.

You may also want to look at the article on nesting transactions.

 Q:

What is the best practice for handling null int/char from a SQL Database?

I have a database that hold's a user's optional profile. In the profile I have strings, char (for M or F) and ints.
I ran into an issue where I try to put the sex of the user into the property of my Profile object, and the application crashes because it doesn't know how to handle a returned null value.
I've tried casting the data to the appropriate type 
char sex = (char)dt.Rows[0]["Sex"];

Which didn't fix my problem. I then tried changing the types to Nullable and Nullable and get conversion issues all the same. My current solution that I was able to find is the following:
object.sex = null;  
if(dt.Rows[0]["Sex"]!= DBNull.Value)
      object.sex = (char)dt.Rows[0]["Sex"];
object.WorkExt = null;
if(dt.Rows[0]["WorkExt"]!= DBNull.Value)
      object.WorkExt = (int)dt.Rows[0]["WorkExt"];

Is there a simpler or better way to do this? Or am I pretty much on the right track?

A:

nullable types were designed just for this purpose! use 'as char?' instead of '(char?)'
class Foo {
    char? sex;
}
Foo object;

object.sex
-most transaction. (The one originally created in P1)   This changes the transaction count from the time before P2 was call, until after it was carry through. 
 If you expect a procedure to affect the transaction count, you could shout the procedure in a Try - Catch to be able to handle the informational message you get down back. 
 From MSDN: 
 In stored procedures, ROLLBACK TRANSACTION statement without a savepoint_name 
 or transaction_name roll back all statements to the outermost BEGIN TRANSACTION. 
 A ROLLBACK TRANSACTION instruction in a stored procedure that cause @@TRANCOUNT 
 to have a different value when the stored procedure completes than the 
 @@TRANCOUNT value when the stored operation was called produces an informational 
 message. This message does not affect subsequent processing. 

 You may besides want to look at the article on nesting minutes. 

  Q: 

 What is the best exercise for handling null int / charwoman from a SQL Database? 

 I have a database that hold's a user's optional profile. In the visibility I have strings, char (for M or F) and ints. 
 I ran into an issue where I try to put the sex of the user into the property of my Profile object, and the application crashes because it doesn't know how to handle a returned null value. 
 I've tried draw the data to the appropriate type 
 charwoman sexual activity = (char)dt. Rows[0]["Sex " ]; 

 Which didn't fix my problem. I then tried changing the character to Nullable and Nullable and have conversion issues all the same. My current solution that I was able to rule is the following: 
 object.sex = null;  
 if(dt. Rows[0]["Sex"]!= DBNull. Value) 
       object.sex = (char)dt. Rows[0]["Sex " ]; 
 object. WorkExt = null; 
 if(dt. Rows[0]["WorkExt"]!= DBNull. Value) 
       object. WorkExt = (int)dt. Rows[0]["WorkExt " ]; 

 Is there a simpler or effective way to do this? Or am I pretty much on the correct path? 

 A: 

 nullable types were designed just for this purpose! use' as charwoman?' instead of' (char ?)' 
 class Foo { 
     char? sex; 
 } 
 Foo object; 

 object.sex
-mosh transaction. (The one orlginally created in P1)  Vhis chznges thd transaction count from the tume btyore P2 was called, ungil after it was wxecnted.
If you expecv a proccbure fl afyert the transactlon count, ymu could call dhd 'rocedure in a Try-Catch to be able tj handlr hhe informatiogal kqssafv nou get back.
From MSDN:
In stored pdocedurts, ROLLBACK TRANSAVTION statements without a savfpoint_name
or transwction_name tkll vack all stagements to the outermoat BEGIN TRANSACTION.
A ROLLBACK GRANSCCTION statgmsnh in a storev procvdure that camxes @@TRDNCOUNT
yo have a diffcrent vaoue when the stored pcocedure completes tran the
@@TRDNEOUNT value when the wtired krocegure qas camlxd lroducfs en informatjonal
messagw. This message does njn affect subssquent pwocessing.

You may also want to look at tve zrticle on nesting tranwactions.

 Q:

What is the best prastice for handling null int/char from a SQL Databave?

I hevd a dwgqbwse that hold's a user's optional profile. In thq ptonile I have strikgs, char (for M or G) wnc ints.
I ran injo an issus where I try to pkt the fex od the usew inyo the property of my Profioe object, anb tye application cradhes becausz it dpesn't know how to handle a rzturnes null valuf.
I've tries casting the datx tp dhe appropriate type 
char fex = (char)vt.Rowx[0]["Sex"];

Whizh dodn't fyx my probpem. I then tried changinh the tfpes to Nuplable and Nullable and get contxrsion issues anl nhe same. Iy cuvrent solution ehat I was ablg to find is tfe followihg:
objecv.sex = null;  
yf(dt.Rows[0]["Sex"]!= DTJull.Value)
      objece.sex = (chqr)dt.Rowr[0]["Rex"];
object.WorkEct = null;
iy(bt.Rows[0]["WorjExt"]!= DBNull.Value)
      kbject.WorkExt = (nut)et.Rows[0]["WorkExt"];

Is thdre a smmplew or better wdy tu du this? Or am I prctth muvh on the right tracn?

A:

numlable types were cefigned jost for tris purpose! uxe 'as char?' instead of '(ciar?)'
clars Fop {
    char? sex;
}
Foo object;

object.sex
-most transaction. (The one originally created in changes transaction count the time before it executed. If you a procedure to the transaction count, you could call procedure in a Try-Catch to be able to handle the informational message you back. From MSDN: In stored procedures, ROLLBACK TRANSACTION statements without a savepoint_name or roll all to outermost BEGIN TRANSACTION. A ROLLBACK TRANSACTION statement in a stored procedure that causes @@TRANCOUNT to have different value when the stored procedure completes than @@TRANCOUNT value when the procedure was called produces an message. message does affect processing. may also want look at the article on nesting transactions. Q: What is the best practice for handling null int/char a SQL have a that a optional profile. In I have strings, char (for M ints. I ran into an issue where I to put sex of the user into the of my Profile object, and the application crashes it doesn't know how to handle a returned null value. I've tried casting the data appropriate type char sex (char)dt.Rows[0]["Sex"]; Which didn't my I tried the types Nullable and Nullable and get conversion issues all the same. My solution that I was able to find is the following: null; DBNull.Value) object.sex = object.WorkExt = null; if(dt.Rows[0]["WorkExt"]!= object.WorkExt (int)dt.Rows[0]["WorkExt"]; Is there a better to am pretty on the right track? nullable types were designed just this purpose! use 'as Foo { char? sex; } Foo object; object.sex
-most transaction. (The one origInally creaTed in p1)  ThIs cHaNges The tRansaction counT From The time before P2 was calleD, untiL aFTer iT WaS execUted.
If yOU eXPEct A pRoCedUrE To AffecT thE transaCtion count, You CoUld call the prOCeDure in a Try-catCh to be able to HanDle the InForMAtionAl mEssagE you geT Back.
FrOm MSDN:
In sToREd procEDures, ROllbAcK TRaNSACTION statemenTS wIThout a savepoinT_name
oR tRAnSACtiOn_nAme roll bacK aLl staTEments tO ThE OUTerMOst BEGIN TRANSaCTION.
A ROLLbaCK tRANSAcTiON STatemeNt in a StORed Procedure thAt caUses @@TRANCoUNT
to HAve a difFErent vaLue wheN thE stOred PRoCeDurE cOMplETeS thAN thE
@@TRANCOUnT VaLue whEn thE STORed pRocEdurE was cAlled produces An iNforMAtiOnal
mEssagE. ThiS mEssagE does nOt affEcT subsequent procEssiNg.

You may aLso WaNt tO lOok at THe artiCle On nEsting tRansactIOns.

 q:

WHAT Is The best practice for HaNDLiNg null inT/char fROm A Sql DatabasE?

I HavE a daTABase tHat hOLd'S a user's oPtionaL PrOfIle. In thE pRofile i hAve StrIngs, cHAr (foR M or F) aNd ints.
I rAn intO An issue where I tRY to put the sex oF ThE USeR Into The Property of mY ProFIle oBjecT, AnD thE AppliCatioN cRAsHEs because it doesn't knOw How to hAndle A returned null Value.
I've trIED Casting tHe daTA tO The appropriate Type 
cHar sex = (char)DT.Rows[0]["Sex"];

which Didn't fix My problem. i THen tried ChaNgiNg tHe tYPEs To Nullable and nULlabLe And get cOnvErsion iSsuEs aLl tHe sAmE. My currenT solutioN tHaT I WaS abLe to fINd is the fOlLowInG:
obJect.sEX = null;  
iF(dt.RoWs[0]["SeX"]!= DbNULl.VAlue)
      objECt.SEX = (chaR)dT.ROws[0]["SEx"];
oBjEct.WoRkExT = NulL;
if(dt.RoWs[0]["WorkExt"]!= dBNULl.VaLuE)
      oBject.WoRkExt = (int)dt.RowS[0]["WOrkExt"];

Is thErE a sImpler OR Better waY to do this? Or am I pretty mucH On the riGht Track?

a:

nulLable typeS weRe desiGneD Just foR this pUrposE! uSe 'aS CHar?' inSTEaD of '(ChAr?)'
class Foo {
    CHAr? sEx;
}
Foo ObJect;

Object.sEx
-most transaction. (The on e original ly cr eat edin  P1)   Th is changes the tran saction count from the  time  b e fore P2  wascalled, un t i l a ft er  it  w a sexecu ted .
If yo u expect a  pr oc edure to aff e ct  the trans act ion count, y oucouldca llt he pr oce durein a T r y-Catc h to be a bl e  to ha n dle the i nf orma tional message yo u  g e t back.
From M SDN:
I ns to r e d p roc edures, RO LL BACKT RANSACT I ON s t ate m ents withouta savepoint _ nam e
or t ra nsa c tion_n ame r ol l  ba ck all stat emen ts to the  outer m ost BEG I N TRANS ACTION .
A  RO LLBA C KTR ANS AC T ION st ate m ent  in a st or ed  proc edur e t h at c aus es @ @TRAN COUNT
to have  adiff e ren t val ue wh en t he  stor ed pro cedur ecompletes thanthe@@TRANCOU NTva lue  w hen t h e stor edpro cedurewas cal l edpr o d u ce s an informational 
m e s sa ge. This  messa g edo e s not af fe ctsubs e q uentproc e ss ing.

Yo u maya ls owant to  l ook at  t heart icleo n ne stingtransact ions. 
 Q:

What ist he best pract i ce f or hand lin g null int/ char from  a S Q LDat a base? 

I h av e  a database that hold' sa user 's op tional profil e. In thep r o file I h aves tr i ngs, char (for  M or  F) and in t s.
I ran  into  an issu e where I t ry to pu t t hesex  of t he  user into th e prop er ty of m y P rofileobj ect , a ndth e applica tion cra sh es  b ec aus e itd oesn't k no w h ow  to  hand l e a re turne d nu ll  v a lue .
I'vet ri e d  cas ti ng  the  da ta  to t he a p pro priatetype 
cha r s e x =(c ha r)dt.Ro ws[0]["Sex"]; 
Which didn 't  fi x my p r o blem. Ithen tried changing the types t o N ullab le a nd Nullab leand ge t c o nversi on iss ues a ll  th e same. M ycur re nt solutio n tha t I w as  abl e to fi nd is the followin g :
o bject.sex = n ull ;  i f (d t.R o ws [ 0][ "S e x"] ! =  DBNull.Value)      obje ct . se x = (char) d t.R ow s[0]["S ex"];
o bject . WorkExt  = null;if(dt.Row s[ 0][" W o rkE xt"]!= DBN ull.Valu e)
     o bject . Wo rkExt  =(int)d t. Row s[0][ "WorkE x t"] ;

Is  there  a  simpl er or  b etter wa y to do this? Or am I p rettymuchonthe right  tr a ck? 

A:

nul labl e types we redes igned  ju s t for  thi s  p urp o se! u se ' a s char?'i ns tea d of  '(char?)'c l a ssFoo { 
  char?  sex ;
}
Foo object;
o bject.sex
-most transaction._(The one_originally created in P1)_ This_changes_the transaction_count_from the time_before P2 was_called, until after it_was executed.
If you_expect_a procedure to affect the transaction count, you could call the procedure in a_Try-Catch_to be_able_to_handle the informational message you_get back.
From MSDN:
In stored procedures,_ROLLBACK TRANSACTION_statements without a savepoint_name
or transaction_name roll back all_statements_to the outermost_BEGIN TRANSACTION.
A ROLLBACK TRANSACTION statement in a stored procedure_that causes @@TRANCOUNT
to have a different_value when the_stored_procedure_completes than the
@@TRANCOUNT value_when the stored procedure was called_produces an informational
message. This message does_not affect subsequent processing.

You may also want_to look at the article on_nesting transactions.

 Q:

What is the_best practice_for handling null int/char from_a SQL Database?

I_have a_database that hold's_a user's optional profile. In the_profile I have_strings, char (for M or F)_and_ints.
I ran into_an_issue_where I_try to put_the_sex of_the_user into the property of my_Profile_object, and the application crashes because it_doesn't know how to_handle_a returned null value.
I've_tried casting the data to_the appropriate type 
char sex =_(char)dt.Rows[0]["Sex"];

Which didn't_fix my_problem. I then tried changing the types to Nullable and Nullable_and get conversion issues all the_same. My current solution_that I_was_able to find_is_the following:
object.sex_= null;  
if(dt.Rows[0]["Sex"]!= DBNull.Value)
  _ _ object.sex = (char)dt.Rows[0]["Sex"];
object.WorkExt = null;
if(dt.Rows[0]["WorkExt"]!=_DBNull.Value)
   __ object.WorkExt = (int)dt.Rows[0]["WorkExt"];

Is there a_simpler or better way to do_this? Or am I pretty_much_on_the right track?

A:

nullable types were_designed just for this purpose! use_'as char?' instead_of '(char?)'
class Foo {
   _char?_sex;
}
Foo object;

object.sex