In c# I need to create a simple payroll management system using visual basic and GUI....

In c#

I need to create a simple payroll management system using visual basic and GUI. I also need to connect to SQL database. It needs a log in screen, inside the login screen it needs another screen to enter or edit employee information. It needs somewhere to enter hours worked for that specific employee, and another screen that can access reports.

Expert Solution

PROGRAM:

# include <stdio.h>
# include <conio.h>
# include <stdlib.h>
# include <string.h>

# define EMP_FILE "empdata.txt"
# define TMP_FILE "tmpdata.txt"

# define EPF_RATE 0.18
# define ETF_RATE 0.03
# define GEN_TIME (8 * 20)
# define PWD "amita\0"

int main(int, char**);
void welcome_message(void);
void get_password(void);
void main_menu(void);
void manage_employee(void);
void add_employee(void);
void delete_employee(void);
void edit_employee(void);
void search_employee(void);
void print_report(void);
void print_slip(void);
void emp_menu(void);
void exit_message(void);

int main(int argc, char *argv[])
{
   char menuOpt;
   int isExit = 0;
   welcome_message();
   if(argc > 1)
   {
       clrscr();
       printf("%s : Start Up Error >>> ", argv[0]);
       fflush(stdin);
       getch();
       return (EXIT_FAILURE);
   }
   get_password();
   do
   {
       main_menu();
       fflush(stdin);
       menuOpt = (char)getch();
       switch(menuOpt)
       {
           case '1':
           {
               manage_employee();
               break;
           }
           case '2':
           {
               print_report();
               break;
           }
           case '3':
           {
               print_slip();
               break;
           }
           case '4':
           {
               isExit = 1;
               break;
           }
           default:
           {
               clrscr();
               printf("Invalid Option!");
               fflush(stdin);
               getch();
               break;
           }
       }
   }while(isExit == 0);
   exit_message();
   fflush(stdin);
   getch();
return (0);
}

void welcome_message(void)
{
   clrscr();
   printf(" WELCOME\n");
   printf("\n\nPAYROLL MANAGEMENT SYSTEM\n");
   printf("\n ________________________________________\n\n\n\n\n\n\n");
   printf("SUBMITTED TO\n\n");
   printf("Faculty Name\n");
   printf("\n\n");
   printf("\t\t\t\t\t");
   printf("SUBMITTED BY\n\n");
   printf("\t\t\t\t\t");
   printf("www.sourcecodernp.blogspot.com\n");

   fflush(stdin);
   getch();
}

void main_menu(void)
{
   clrscr();
   printf("MENU\n");
   printf(" ----\n");
   printf("[1] : Manage Employees\n");
   printf("[2] : Print Report\n");
   printf("[3] : Print Slip\n");
   printf("[4] : Exit\n\n");
   printf(" >>> ");
}

void manage_employee(void)
{
   char menuOpt;
   int isExit = 0;
   do
   {
       emp_menu();
       fflush(stdin);
       menuOpt = (char)getch();
       switch(menuOpt)
       {
           case '1':
           {
               add_employee();
               break;
           }
           case '2':
           {
               delete_employee();
               break;
           }
           case '3':
           {
               edit_employee();
               break;
           }
           case '4':
           {
               search_employee();
               break;
           }
           case '5':
           {
               isExit = 1;
               fflush(stdin);
               break;
           }
           default:
           {
               clrscr();
               printf("Invalid Option!");
               getch();
           }
       }
   }while(isExit == 0);
}

void add_employee(void)
{
   char name[50];
   char address[100];
   char phone[11];
   char id[5];
   float salary;
   float hours;
   FILE *fp;
   fp = fopen(EMP_FILE, "a+");
   do
   {
       fscanf(fp, "%[^/]%*c%[^/]%*c%[^/]%*c%[^/]%*c%f %f%*c", name, address, phone, id, &salary, &hours);
       if(feof(fp))
       {
           break;
       }
   }while(!(feof(fp)));
   clrscr();

   printf("Name: ");
   fflush(stdin);
   gets(name);
   printf("Address: ");
   fflush(stdin);
   gets(address);
   printf("Phone: ");
   fflush(stdin);
   gets(phone);
   printf("ID: ");
   fflush(stdin);
   gets(id);
   printf("Salary: ");
   fflush(stdin);
   scanf("%f", &salary);
   printf("Hours: ");
   fflush(stdin);
   scanf("%f", &hours);
   fprintf(fp, "%s/%s/%s/%s/%.2f %.2f\n", name, address, phone, id, salary, hours);
   fflush(fp);
   fclose(fp);
   clrscr();
   printf("Done Entering New Record >>> ");
   getch();
}

void delete_employee(void)
{
   char name[50];
   char address[100];
   char phone[11];
   char id[5];
   char idDel[5];
   float salary;
   float hours;
   FILE *fp1;
   FILE *fp2;
   fp1 = fopen(EMP_FILE, "r");
   fp2 = fopen(TMP_FILE, "w");
   clrscr();
   printf("Enter Employee ID to Delete : ");
   fflush(stdin);
   gets(idDel);
   do
   {
       fscanf(fp1, "%[^/]%*c%[^/]%*c%[^/]%*c%[^/]%*c%f %f%*c", name, address, phone, id, &salary, &hours);
       if(feof(fp1))
       {
           break;
       }
       if((strcmp(id, idDel)) != 0)
       {
           fprintf(fp2, "%s/%s/%s/%s/%.2f %.2f\n", name, address, phone, id, salary, hours);
       }
   }while(!(feof(fp1)));
   fflush(fp2);
   fclose(fp1);
   fclose(fp2);
   remove(EMP_FILE);
   rename(TMP_FILE, EMP_FILE);
   clrscr();
   printf("Done Deleting >>> ");
   fflush(stdin);
   getch();
}

void edit_employee(void)
{
   char name[50];
   char address[100];
   char phone[11];
   char id[5];
   char idEdit[5];
   float salary;
   float hours;
   FILE *fp1;
   FILE *fp2;
   fp1 = fopen(EMP_FILE, "r");
   fp2 = fopen(TMP_FILE, "w");
   clrscr();
   printf("Enter Employee ID to Edit : ");
   fflush(stdin);
   gets(idEdit);
   do
   {
       fscanf(fp1, "%[^/]%*c%[^/]%*c%[^/]%*c%[^/]%*c%f %f%*c", name, address, phone, id, &salary, &hours);
       if(feof(fp1))
       {
           break;
       }
       if((strcmp(id, idEdit)) == 0)
       {
           clrscr();
           printf("Enter new basic salary : ");
           fflush(stdin);
           scanf("%f", &salary);
           printf("Enter the new number of hours worked : ");
           fflush(stdin);
           scanf("%f", &hours);
       }
       fprintf(fp2, "%s/%s/%s/%s/%.2f %.2f\n", name, address, phone, id, salary, hours);
   }while(!(feof(fp1)));
   fflush(fp2);
   fclose(fp1);
   fclose(fp2);
   remove(EMP_FILE);
   rename(TMP_FILE, EMP_FILE);
   clrscr();
   printf("Done Editing >>> ");
   fflush(stdin);
   getch();
}

void search_employee(void)
{
   char name[50];
   char address[100];
   char phone[11];
   char id[5];
   char idSearch[5];
   float salary;
   float hours;
   FILE *fp;
   fp = fopen(EMP_FILE, "r");
   clrscr();
   printf("Enter the Employee ID to Search : ");
   fflush(stdin);
   gets(idSearch);
   do
   {
       fscanf(fp, "%[^/]%*c%[^/]%*c%[^/]%*c%[^/]%*c%f %f%*c", name, address, phone, id, &salary, &hours);
       if(feof(fp))
       {
           break;
       }
       if((strcmp(id, idSearch)) == 0)
       {
           clrscr();
           printf("Name: %s\n", name);
           printf("Address: %s\n", address);
           printf("Phone: %s\n", phone);
           printf("ID: %s\n", id);
           printf("Salary: %.2f\n", salary);
           printf("Hours: %.2f\n\n", hours);
           printf("Press ENTER to continue >>> ");
           fflush(stdin);
           getch();
       }
   }while(!(feof(fp)));
   fclose(fp);
}

void print_report(void)
{
   char name[50];
   char address[100];
   char phone[11];
   char id[5];
   float salary;
   float hours;
   float epf;
   float etf;
   float netSal;
   float ot, otRate, otHrs;
   FILE *fp;
   fp = fopen(EMP_FILE, "r");
   clrscr();
   do
   {
       fscanf(fp, "%[^/]%*c%[^/]%*c%[^/]%*c%[^/]%*c%f %f%*c", name, address, phone, id, &salary, &hours);
       if(feof(fp))
       {
           break;
       }
       epf = salary * EPF_RATE;
       etf = salary * ETF_RATE;
       otHrs = hours - GEN_TIME;
       otRate = salary / GEN_TIME;
       if(otHrs > 0)
       {
           ot = otHrs * otRate;
       }
       else
       {
           ot = 0;
           otHrs = 0;
       }
       netSal = salary - (epf + etf) + ot;
       printf("%5s %5.2f %3.2f %3.2f %3.2f %5.2f %5.2f %5.2f %5.2f\n", id, salary, hours, otHrs, ot, epf, etf, netSal);
       getch();
   }while(!(feof(fp)));
   fclose(fp);
}

void print_slip(void)
{
   char name[50];
   char address[100];
   char phone[11];
   char id[5];
   char empId[5];
   float salary;
   float hours;
   float epf;
   float etf;
   float netSal;
   float ot, otRate, otHrs;
   FILE *fp;
   fp = fopen(EMP_FILE, "r");
   clrscr();
   printf("Enter Employee ID to print : ");
   fflush(stdin);
   gets(empId);
   do
   {
       fscanf(fp, "%[^/]%*c%[^/]%*c%[^/]%*c%[^/]%*c%f %f%*c", name, address, phone, id, &salary, &hours);
       if(feof(fp))
       {
           break;
       }
       if((strcmp(id, empId)) == 0)
       {
           epf = salary * EPF_RATE;
           etf = salary * ETF_RATE;
           otHrs = hours - GEN_TIME;
           otRate = salary / GEN_TIME;
           if(otHrs > 0)
           {
               ot = otHrs * otRate;
           }
           else
           {
               ot = 0;
               otHrs = 0;
           }
           netSal = salary - (epf + etf) + ot;
           clrscr();
           printf("Name: %s\n", name);
           printf("Address: %s\n", address);
           printf("Phone: %s\n", phone);
           printf("id: %s\n", id);
           printf("Basic Salary: %.2f\n", salary);
           printf("Total Hours: %.2f\n", hours);
           printf("OT Hours: %.2f\n", otHrs);
           printf("OT Rate: %.2f\n", otRate);
           printf("OT Amount: %.2f\n", ot);
           printf("EPF: %.2f\n", epf);
           printf("ETF: %.2f\n", etf);
           printf("Net Salary: %.2f\n", netSal);
       }

}while(!(feof(fp)));
   fclose(fp);
   printf("Done >>> ");
   fflush(stdin);
   getch();
}

void get_password(void)
{
   char password[7];
   do
   {
       clrscr();
       printf("Enter Password >>> ");
       fflush(stdin);
       gets(password);
   }while((strcmp(password, PWD)) != 0);
}

void emp_menu(void)
{
   clrscr();
   printf("MENU\n");
   printf(" ----\n");
   printf("[1] : Add Employee\n");
   printf("[2] : Delete Employee\n");
   printf("[3] : Edit Employee\n");
   printf("[4] : Search Employee\n");
   printf("[5] : Go Back\n\n");
   printf(" >>> ");
}

void exit_message(void)
{
   clrscr();
   printf("THANK YOU!\n");
   printf(">>> ");
}

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