[مساعدة] مشكلة في التعامل مع الملفات (اضافة حذف تعديل)

#include<iostream>

#include<conio.h>

#include<fstream>

#include<process.h>

using namespace std;

fstream file("emp.txt",ios::in|ios::binary);

//int no;

struct Employee

{

int id;

char name[30], address[60];

// string id, name, address;

};

Employee Emp1;

void ReadData()

{

fstream file("emp.txt",ios::in|ios::binary);

file.read((char*)&Emp1, sizeof(Emp1));

while(!file.eof())

{

file.read((char*)&Emp1, sizeof(Emp1));

}

}

void WriteData()

{

fstream file("emp.txt",ios::out|ios::app|ios::binary);

file.write((char*)&Emp1, sizeof(Emp1));

}

bool CheckFile()

{

bool Ok = false;

if(!file)

Ok = false;

else

Ok = true;

return Ok;

}

void DisplayEmp()

{

fstream file("emp.txt",ios::in|ios::binary);

cout<<"\nID#\t\tName\t\tAddress";

cout<<"\n---\t\t----\t\t-------";

file.read((char*)&Emp1, sizeof(Emp1));

while(!file.eof() and Emp1.id!=0)

{

cout<<"\n"<<Emp1.id<<"\t\t"<<Emp1.name<<"\t\t"<<Emp1.address;

file.read((char*)&Emp1, sizeof(Emp1));

}

cout<<"\n\nPress any key to continue ... ";

getch();

}

void AddEmp()

{

cout<<"\nEmployee ID# : ";

cin>>Emp1.id;

cout<<"\nEmployee Name : ";

cin>>Emp1.name;

cout<<"\nEmployee Address : ";

cin>>Emp1.address;

WriteData();

}

void UpdateEmp(int nu)

{

}

void SearchEmp(int nu)

{

// int no;

bool found=false;

fstream file("emp.txt",ios::in);

file.read((char*)&Emp1, sizeof(Emp1));

while(!file.eof())

{

if(nu == Emp1.id)

{

found = true;

cout<<"\nID#\t\tName\t\tAddress";

cout<<"\n---\t\t----\t\t-------";

cout<<"\n"<<Emp1.id<<"\t\t"<<Emp1.name<<"\t\t"<<Emp1.address;

break;

}

else

file.read((char*)&Emp1, sizeof(Emp1));

}

if(found == false)

cout<<"\nEmployee does not found ...";

getch();

}

void DelEmp(int nu)

{

/* Wrong Code

//SearchEmp(nu);

bool found=false;

fstream file("emp.txt",ios::in);

file.read((char*)&Emp1, sizeof(Emp1));

while(!file.eof())

{

if(nu == Emp1.id)

{

found = true;

cout<<"\nID#\t\tName\t\tAddress";

cout<<"\n---\t\t----\t\t-------";

cout<<"\n"<<Emp1.id<<"\t\t"<<Emp1.name<<"\t\t"<<Emp1.address;

// Emp1.id=0;

// Emp1.name='';

// Emp1.address='';

break;

}

else

file.read((char*)&Emp1, sizeof(Emp1));

}

if(found == false)

cout<<"\nEmployee does not found ...";

getch();

*/

}

int main()

{

int sel, no;

ReadData();

if(!CheckFile())

{

cout<<"\n\n\n\n\n\n\n\n\n\t\t\tFile does not found !!!";

goto Exit;

}

else

do{

system("cls");

cout<<"\n\n\n\n\t\t\t==========================";

cout<<"\n\t\t\t= 1. Add Employee =";

cout<<"\n\t\t\t= 2. Update Employee =";

cout<<"\n\t\t\t= 3. Delete Employee =";

cout<<"\n\t\t\t= 4. Search for Employee =";

cout<<"\n\t\t\t= 5. Display Employee =";

cout<<"\n\t\t\t= 0. Exit =";

cout<<"\n\t\t\t==========================";

cout<<"\n\n\t\t\tEnter your Choice : ";

cin>>sel;

switch(sel)

{

case 1:

AddEmp();

break;

case 2:

cout<<"\nEnter the Employee ID# : ";

cin>>no;

UpdateEmp(no);

break;

case 3:

cout<<"\nEnter the Employee ID# : ";

cin>>no;

DelEmp(no);

break;

case 4:

cout<<"\nEnter the Employee ID# : ";

cin>>no;

SearchEmp(no);

break;

case 5:

DisplayEmp();

break;

case 0:

exit(0);

break;

default:

system("cls");

}

}while(sel != 0);

Exit:

getch();

return 0;

}