C Sharp :: How To Set Transaction Scope In C#

Jul 2, 2012

I have c# code something like below.
 
void ExecuteSomething() { 
    TransactionOptions transactionOptions = new TransactionOptions();
  transactionOptions.IsolationLevel = System.Transactions.IsolationLevel.ReadUncommitted;
  transactionOptions.Timeout = TimeSpan.FromSeconds(TransactionTimeOutInSeconds);  

[Code] ....

I am retrieving the data by using above code

From some other code i am calling some function in c# through windows service. That function is going to delete some unwanted data from sql server database. if i wanted i initiate the request it will take 30 min to delete the data.

in this 30 min time i am unable to access other pages in my website. is there any better way to design this?

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C++ :: Global Scope And Scope Resolution Operator

Jun 14, 2013

Are there any situations to explicitly use the scope resolution operator with global scope? I can imagine a situation like:

#include <cmath>
class IntWrapper{
public:
IntWrapper& pow(char);
IntWrapper(char);
private:
int m_int;

[Code] ....

But then I would think that the writer should have used a different name, and that using the scope resolution operator in the constructor body is still pointless...

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C/C++ :: Record Every Transaction That Made To A File Like A Receipt

Jun 19, 2014

I dont know anything about filestreams. I want to record the files that the customer bought, total, cash and change.

Here's my code.

// Create a program that will initiate a purchasing system for registered agents in an agency.
#include<iostream>
#include<windows.h>
#include<conio.h>
#include<fstream>
#include<string>
using namespace std;
void password();

[code]....

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C :: Transaction Program - Show Balance Of Clients After Withdrawals / Deposit

Jun 13, 2014

I am running a little business on the side, any program I could use that will show me the balances of clients after withdrawals, deposits. For example, if i had a data file like this :

Code:
e 5 Elden
c 3 Felipe 55342.51415
e 3 Leonardo
e 1 Yong

[Code] ....

Lines beginning with 'e' will have an integer employee ID and an employee name.
Lines beginning with 'c' will have an integer customer ID, customer name, and a floating point account balance.
Lines beginning with a 't' will have a customer ID, employee ID, a 'w' or 'd' representing withdrawal or deposit,
and a floating point transaction amount.

Now, obviously the program doesn't have to be exactly like this but something along these lines.

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C++ :: Creating Priority Queue Of Objects Transaction As A Variable Of Store Class

Dec 4, 2013

I've got 2 classes, Store and Transaction and I would like to create a priority queue of objects Transaction as a variable of Store class.

My store.h
#ifndef __STORE_H_INCLUDED__
#define __STORE_H_INCLUDED__
#include <queue>
using namespace std;
#include "Transaction.h"
struct TransactionCompare;

[Code] ....

The error im getting with this set up is

error C2664: 'bool TransactionCompare::operator ()(const Transaction &,const Transaction &)
const' : cannot convert parameter 1 from 'Transaction *' to 'const Transaction &'

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C++ :: Scope Of References?

Apr 22, 2013

Did a little Googling on this but couldn't find anything definitive. Is it safe to do something like

Code:
void MyClass::myFunc(){
my_type_t &foo = some_obj->get_member_reference();
store_for_later(&foo);
}

Then at some pointer later in execution, another function uses the pointer passed to store_for_later.

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C++ :: Scope Resolution Operator?

Feb 21, 2013

I have done alot of googling for the scope resolution operator and Ive gained a bit of an understanding as to what it does i know it can distinguish between global and local variables, but I see it used to access methods/members of classes such as this example, why not just use a dot instead to access it?:

sql:: Driver *driver;

Why is the scope resolution operator being used here?

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C++ :: Vector - Out Of Scope Variables

Dec 14, 2013

The situation is the following :

Code:
vector<int>& function(int a , int b){
vector<int> s(3000000);
vector<int> xxx(4);
return xxx
}

Not to board people with details but if i am returning the the reference to a vector xxx what happens to vector s. is it destroyed ?? it should be, but i don't see it on my memory map (memory is not released) . can this be or should i go and search for error on some other place.....

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C++ :: Using Declaration Within Name Space Scope

Mar 16, 2013

Can we use using declaration within name space scope? is it safe to use it?

I think we can use using declaration for class scope and function scope only.

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C :: Scope Of A Data Structure

Oct 9, 2013

how to solve this undeclared error when compiling this code. I assume it has something to do with scope.

C code - 47 lines - codepad

Code:

#include <stdio.h>
int main(void) {
struct bank_account {

[Code].....

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C++ :: (X) Not Declared In This Scope Error

Oct 29, 2014

main.cpp

#include <iostream>
#include "sushi.h"
using namespace std;
int main()
{
do {
......sushi go;
......string x; <----------------------------Declared x here
......cout << "wanna use a banana?" << endl;

[Code ....

Error reads: 'x' was not declared in this scope.

How do I fix this?

P.S The sushi class does not matter, that is all perfect. Also, the dots are to represent my tabbing to make it easier to understand.

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C/C++ :: Rename Not Declared In This Scope

Jan 10, 2015

For some reason my compiler says "rename not declared in this scope" .... Isn't it declared in iostream? Or is rename only for C not C++? And if it is only for C how do I rename a file in C++ then?

#include <iostream>
#include <cstdlib>
using namespace std;
int main(int argc, char* argv[]){
char oldname[] = "RomeTW.exe";

[Code] .....

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C# :: Switch Case Variable Scope

Jan 31, 2014

Ran into something today that does not make sense:

This compiles: Code: int x = 5;

switch(x) {
case 0:
{
int value = 5;
}
break;

[Code] ....

Ok so it doesn't like int value = 6 b/c of int value = 5 for case 0. However since the value in case 0 is declared within the brackets one would think it has case scope.

So I tried this:

Code: int x = 5;
switch(x) {
case 0:
{
int value = 5;
}
break;

[Code] ....

Now it doesn't like it b/c value has not been declared in case 1:. These two conditions cannot possibly be both true at the same time. You cannot disallow the declaration of value in case 1 b/c it interferes with value in case 0 and at the same time disallow me to use value from case 0 b/c it is not in scope. If it was not in scope then theoretically I should be able to declare value in case 1.

Both MSVS 2012 and 2013 exhibit the same behavior. I checked the standard and it is unclear on the matter.

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C++ :: Case Scope In Switch Statements

Dec 16, 2013

Is it's scope confined to that single case?

char ch;
switch(ch) {
case '1':
using namespace common::section1; //only this case??
break;

[Code] ....

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C++ :: Friend Functions - Variable Out Of Scope

Oct 11, 2014

I'm trying out friend functions not in just one source file to see how it works but I'm getting an error.

/* ----- ClassOne.h ----- */
#ifndef CLASSONE_H_
#define CLASSONE_H_
#include "classTwo.h"
using namespace std;
class ClassOne {

[Code] ....

Basically, I just want to print out the private members of ClassOne using ClassTwo's friend function twoPrintsOne().

The error is in classTwo.cpp and it says that m_a and m_b in the twoPrintsOne function are not declared in this scope.

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C++ :: Scope Of Inline Function Definition

Dec 11, 2013

I have observed that inline functions can not be prototyped. example:

.cpp file:

inline void whatever() {
cout<< "this is inline"<< endl;
}

.h file, prototype
inline void whatever(); //would ask for a definition

Because of this, I have have just made functions that are used in only 1 .cpp file (ever) inlined, to make it more efficient (and it has demonstrated that it is more efficient). It's worked out fine so far, but what about the scope of the definition??

Since an inline function is like a templated function, in that it can't be prototyped, how are name conflicts resolved, and what is the best practice for writing inline functions??

Example of a conflict:

//in some arbitrary header...
void do_somthing();
//in .cpp file that inlcudes the header...
inline void do_somthing() {
cout<< "I'm doing somthing!!"<< endl;
} int main() {
do_somthing(); //which one?? it compiles fine though!!
return 0;
}

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C++ :: Fprintf / Fclose Was Not Declared In This Scope

May 20, 2013

I have this error - [Error] 'fprintf' was not declared in this scope (line 32)

and this - [Error] 'fclose' was not declared in this scope (line 33)

here's my code.........

1 #include <iostream>
2 using namespace std;
3 #include <windows.h>
4 #include <winuser.h>
5
6 int save (int key_stroke, char *file);

[Code] ......

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C/C++ :: Variable Not Declared In Scope Error?

Jan 27, 2014

I'm working through this neural network tutorial, unfortunately I get stuck trying to compile on line 28, saying "error: 'neuronNum' not declared in this scope." I seem to always get stuck on these kinds of errors, yet I don't understand because I though that the variable was declared and initialized within the for loop.

#include <iostream>
#include <vector>
using namespace std;

[Code]....

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C/C++ :: Error - Grid Was Not Declared In Scope

Jan 28, 2014

I'm trying to make a dynamic 2d array of a Tile Object I created, the Dynamic 2d array was working when I tested it as an int array but not that I gave it a type of Tile it is giving me the above error. I'm reading values from a .txt .

tile Tile;
Tile **grid;
grid = new Tile*[a];
for (int i = 0; i < a; ++i) {
grid[i] = new Tile[b];
}

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C++ :: Not Declared In Scope And No Member Name With Vectors

Mar 31, 2015

Code:

#include <iostream>
#include <vector>
#include <cmath>
#include "ANN.h"
using namespace std;
const int NUM_HIDDEN_NEURONS = 3;

[Code] ....

So I am getting 2 errors. Here is both of them.

ANN.cpp: In member function "void ANN::JustDoIt()":
ANN.cpp:36: error: "class std::vector<HiddenNeuron, std::allocator<HiddenNeuron> >" has no member named "SetWeights"
ANN.cpp: In member function "void ANN::SetData(double, double)":
ANN.cpp:85: error: "SetNeuronData" was not declared in this scope

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Visual C++ :: Cannot Use Global Scope Max Function

Jan 30, 2013

The compiler "forces" me to use the std::max method, I cannot override it even when writing ::max in my code.

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C++ :: Class Member Variables Run Out Of Scope?

Mar 21, 2012

Code:

class CObjects {
int m_CurrentTime;
int m_Steps;
AStarList* OPEN;
AStarList* CLOSED;
std::vector<AStarNode *>solution;

[code]....

CCB is derived from CrowdEntity and in turn is derived from CObjects Inside CObjects, I declared AStarList *OPEN; Why would howmany become garbage (cdcdcdcd) when I reference it in GetBestNode()

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Visual C++ :: Global Variable Scope

Jun 15, 2014

//I dont understand this why does "<< "
The value of global now is: " << global << "
";" is equals to nine

#include <iostream>
int subtract (int a, int b);
int global = 5;
int main(void) {
using std::cout;
int a, b;

[Code] ....

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C++ :: Access Variable From Other Scope Without Global Declaration?

Aug 8, 2013

Code:
#include <iostream>
using namespace std;
void f() {
int x=17;
//cout<<main::y<<endl; i want to access y from main scope
}

int main() {
int y=23;
//cout<<f::x<<endl;

I want to access x from f scope is there any way for this without global declaration? specially about function scopes...

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C++ :: How To Correct Scope Not Declared For NumYears And NumChildren

May 1, 2014

trying to use a void function below. How do I correct scope not declared for numYears and numChildren?

4#include <iostream>
5#include <cmath>
6using namespace std;
7
8// Function prototype

[code]....

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C/C++ :: Pointers - Scope Of Dynamic Allocation And Delete

Apr 13, 2014

I have the following code here. My questions are:

1. Pointers can be used as pass by reference. When I dynamically allocated memory for array[50] in the run function, does that mean I am changing the size of the pArray in main as well? Or does the scope of array[50] ends with the function run? if so, should I do a delete [] Array inside the run function?

2. When I do delete[] pArray in main, what does it delete? memory for array[50]? or array[100]?

#include <iostream>
using namespace std;
void run(int* Array, int& s) {
s = 50;
Array = new int[s];

[Code] ....

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