Преобразование кода из с++ в с# - C#

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Формулировка задачи:

немного знаком с с# и тут появилась необходимость переписать старый код, написанный мной на с++ в с# 
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#define bool char
#define true 1
#define false 0
#define MAXCOUNT 1024
#define stdLen 256
typedef struct Date
{   int day;
    int month;
    int year;}Date;
void saveDate (Date d, FILE *f)
{   fprintf(f,"%d\n%d\n%d\n",d.day,d.month,d.year);}
Date loadDate(FILE *f)
{   Date d;
    fscanf(f,"%d\n%d\n%d\n",&d.day,&d.month,&d.year);
    return d;}
void printDate(Date d)
{   printf("Day - %d\nMonth - %d\nYear - %d\n",d.day,d.month,d.year);}
Date scanDate()
{   Date d;
    printf("Enter Date\n");
    printf("Enter a day\n");
    scanf("%d",&d.day);
    printf("Enter a month\n");
    scanf("%d",&d.month);
    printf("Enter a year\n");
    scanf("%d",&d.year);
    return d;}
typedef struct Car
{   Date dateofinspection;
    int consumption;
    char *brand;
    char *number;
    int id;
    int owner;
    int mileage;} Car;
typedef struct BaseCar
{   Car base[MAXCOUNT];
    int count;
    int lastId;
} BaseCar;
typedef struct Driver
{
    char* name;
    int id;
    int cost;
    int bid;
} Driver;
typedef struct BaseDriver
{
    Driver base[MAXCOUNT];
    int count;
    int lastId;
} BaseDriver;
 
void saveBaseCar(BaseCar bd)
{
    FILE *f;
    f = fopen("carbase.dat","wb");
 
    fprintf(f,"%d\n",bd.count);
    fprintf(f,"%d\n",bd.lastId);
 
    for (int i=0;i<bd.count;i++)
    {
        saveDate(bd.base[i].dateofinspection,f);
        fprintf(f,"%d\n",bd.base[i].consumption);
        fprintf(f,"%s\n",bd.base[i].brand);
        fprintf(f,"%s\n",bd.base[i].number);
        fprintf(f,"%d\n",bd.base[i].id);
        fprintf(f,"%d\n",bd.base[i].owner);
        fprintf(f,"%d\n",bd.base[i].mileage);
    }
 
    fclose(f);
}
BaseCar loadBaseCar()
{
    FILE *f;
    BaseCar bd;
    
        f = fopen("carbase.dat","rb");
    
if(f!=NULL)
{
 
    fscanf(f,"%d\n",&bd.count);
    fscanf(f,"%d\n",&bd.lastId);
 
    for (int i=0;i<bd.count;i++)
    {   
        bd.base[i].dateofinspection = loadDate(f);
        fscanf(f,"%d\n",&bd.base[i].consumption);
        bd.base[i].brand= (char*)malloc(stdLen*sizeof(char));
        fscanf(f,"%s\n",bd.base[i].brand);
        bd.base[i].number= (char*)malloc(stdLen*sizeof(char));
        fscanf(f,"%s\n",bd.base[i].number);
        fscanf(f,"%d\n",&bd.base[i].id);
        fscanf(f,"%d\n",&bd.base[i].owner);
        fscanf(f,"%d\n",&bd.base[i].mileage);
    }
 
    fclose(f);
    return bd;
}
else
{   
        bd.count=0;
        bd.lastId=0;
        return bd;
}
}
void saveBaseDriver(BaseDriver bd)
{
    FILE *f;
    f = fopen("BaseDriver.dat","wb");
 
    fprintf(f,"%d\n",bd.count);
    fprintf(f,"%d\n",bd.lastId);
 
    for (int i=0;i<bd.count;i++)
    {
        fprintf(f,"%s\n",bd.base[i].name);
        fprintf(f,"%d\n",bd.base[i].id);
        fprintf(f,"%d\n",bd.base[i].cost);
        fprintf(f,"%d\n",bd.base[i].bid);
    }
    fclose(f);
}
BaseDriver loadBaseDriver()
{
    FILE *f;
    BaseDriver bd;
 
        f = fopen("BaseDriver.dat","rb");
    
    if(f==NULL)
    {
 
        fscanf(f,"%d\n",&bd.count);
        fscanf(f,"%d\n",&bd.lastId);
 
        for (int i=0;i<bd.count;i++)
        {   
            bd.base[i].name= (char*)malloc(stdLen*sizeof(char));
            fscanf(f,"%s\n",bd.base[i].name);
            fscanf(f,"%d\n",&bd.base[i].id);
            fscanf(f,"%d\n",&bd.base[i].cost);
            fscanf(f,"%d\n",&bd.base[i].bid);
        }
        fclose(f);
 
        return bd;
    }
    else
    {
    
        bd.count=0;
        bd.lastId=0;
        return bd;
    }
}
void addDriver(BaseDriver *bd)
{
 
    if (bd->count != MAXCOUNT)
    {
        Driver d;
        d.id = bd->lastId;
        bd->lastId++;
 
        printf("Enter name of new driver\n");
        d.name = (char*)malloc(stdLen*sizeof(char));
        scanf("%s",d.name);
        
        printf("enter the cost of petrol\n");
        scanf("%d",&d.cost);
        
        printf("enter the number of bid\n");
        scanf("%d",&d.bid);
 
        bd->base[bd->count] = d;
        bd->count++;
 
        printf("New driver is added with name %s\n\n",d.name);
    }
    else
        printf("Base of driver overflowed\n");
 
}
void addCar(BaseCar *bd, BaseDriver *basedriver)
{
    if (bd->count != MAXCOUNT)
    {
        printf("\nNew Car:\n");
        Car p;
 
        printf("Enter a number of car\n");
        p.number = (char*)malloc(stdLen*sizeof(char));
        scanf("%s",p.number);
        printf("Enter a consumption of car\n");
        scanf("%d",&p.consumption);
        printf("Enter a brand of car\n");
        p.brand = (char*)malloc(stdLen*sizeof(char));
        scanf("%s",p.brand);
        printf("Enter date of inspection\n");
        p.dateofinspection = scanDate();
        printf("Enter a mileage of car\n");
        scanf("%d",&p.mileage);
        p.id = bd->lastId;
        bd->lastId++;
 
        p.owner = -1;
        char * nameofdriver;

        do
        {
            printf("Enter a name of driver\n");
            nameofdriver = (char*)malloc(stdLen*sizeof(char));
            scanf("%s",nameofdriver);
            for (int i=0;i<basedriver->count;i++)
                if (strcmp(nameofdriver,basedriver->base[i].name) == 0)
                {
                    p.owner = basedriver->base[i].id;
 
                }
            if (p.owner == -1)
            {
                printf("This driver doesn't exist\n");
            }
        }
        while (p.owner == -1);
 
        bd->base[bd->count] = p;
        bd->count++;
        printf("Car is added with id = %d\n\n",p.id);
    }
    else
        printf("Base of car overflowed\n");
 
}
int findCarById(BaseCar* bd,int id)
{
    int i=0;
    while (i<bd->count&&bd->base[i].id!=id)
    i++;
    if(i>=bd->count)
        return -1;
    return i;
}
int findDriverById(BaseDriver* bd,int id)
{
    int i=0;
    while (i<bd->count&&bd->base[i].id!=id)
    i++;
    if(i>=bd->count)
        return -1;
    return i;
}
void removeCar(BaseCar *bd, int id)
{
    for(int i = id;i<(bd->count-1);i++)
        bd->base[i] = bd->base[i+1];
 
    bd->count--;
}
void removeDriver(BaseDriver *bd, BaseCar *bp)
{
    printf("\nDelete a driver:\n");
    printf("Enter name of driver\n");
    char *name = (char*)malloc(stdLen*sizeof(char));
    scanf("%s",name);
 
    for (int i=0;i<bd->count;i++)
    {
        if(strcmp(name,bd->base[i].name) == 0)
        {
            for (int j = 0; j < bp->count; j++)
            {
                if (bp->base[j].owner == bd->base[i].id)
                    removeCar(bp,j);
            }
 
            for(;i<(bd->count-1);i++)
                bd->base[i] = bd->base[i+1];
            bd->count--;
            break;
        }
    }
 
    printf("Driver is deleted\n\n");
}
void removeCarbyId(BaseCar *bp)
{
    printf("\nDelete a car:\n");
    printf("Enter a id of car\n");
    int id;
    scanf("%d",&id);
    int index=findCarById(bp,id);
    if (index!=-1)
    {
        removeCar(bp,index);
        printf("Car is deleted\n\n");
    }
    else
        printf("Car doesn't exist\n\n");
}
 
void showCar(Car *p)
{
    printf("Id - %d\n",p->id);
    printf("Number - %s \n",p->number);
    printDate(p->dateofinspection);
    printf("ID of driver - %d\n",p->owner);
    printf("Brand - %s\n",p->brand);
    printf("Consumption - %d\n",p->consumption);
    printf("Mileage - %d\n",p->mileage);
}
 
void showDriver(Driver *d)
{
    printf("Id - %d\n",d->id);
    printf("Name - %s \n",d->name);
    printf("Bid - %d\n",d->bid);
    printf("Cost - %d\n",d->cost);
}
 
void showCarbyBrand(BaseCar *bp)
{
    printf("\nShow car by Brand:\n");
    printf("Enter brand\n");
    char *brand = (char*)malloc(stdLen*sizeof(char));
    scanf("%s",brand);
 
    for (int i=0;i<bp->count;i++)
        if (!strcmp(brand,bp->base[i].brand))
        {
            showCar(&bp->base[i]);
            printf("\n");
        }
    printf("\n");
}
 
void showByOwner(BaseCar *bp)
{
    printf("Enter id Driver\n");
    int id;
    scanf("%d",&id);
    for (int i=0;i<bp->count;i++)
    {
        if(id==bp->base[i].owner)
            showCar(&bp->base[i]);
    }

}
void showBaseDriver(BaseDriver *bd)
{
    printf("\nBase of Drivers\n");
    printf("Found - %d\n",bd->count);
    for(int i = 0;i<bd->count;i++)
    {
        printf("ID - %d\n",bd->base[i].id);
        printf("Name - %s\n\n",bd->base[i].name);
    }
    printf("\n");
 
}
void showBaseCar(BaseCar *bp)
{
    printf("\nBase of Drivers\n");
    printf("Found - %d\n",bp->count);
    for(int i = 0;i<bp->count;i++)
    {
        showCar(&bp->base[i]);
        printf("\n");
    }
    printf("\n");
}
 
void showDriverByBid(BaseDriver *bd)
{
    printf("Enter the number of bid\n");
    int bid;
    scanf("%d",&bid);
    for(int i = 0;i<bd->count;i++)
    {
        if(bid==bd->base[i].bid)
        showDriver(&bd->base[i]);
    }
    printf("\n");
}
 
void showDriverByCost(BaseDriver *bd)
{
    printf("\nEnter amount cost of petrol\n");
    int cost;
    scanf("%d",&cost);
    for(int i = 0;i<bd->count;i++)
    {
        if(cost==bd->base[i].cost)
        showDriver(&bd->base[i]);
    }
    printf("\n");
}
 
void showCarById(BaseCar *bp)
{
    printf("\nShow a car:\n");
    printf("Enter a id of car\n");
    int id;
    scanf("%d",&id);
    int index=findCarById(bp,id);
    if (index!=-1)
    {
        showCar(&bp->base[index]);
        
    }
    else
        printf("Car doesn't exist\n\n");
}
 
void showDriverById(BaseDriver *bd)
{
    printf("\nShow a driver:\n");
    printf("Enter a id of driver\n");
    int id;
    scanf("%d",&id);
    int index=findDriverById(bd,id);
    if (index!=-1)
    {
        showDriver(&bd->base[index]);
        
    }
    else
        printf("Driver doesn't exist\n\n");
}
 
void addDriverbid(BaseDriver *bd)
{
    printf("Enter a id of driver\n");
    int id, i=0;
    scanf("%d",&id);
    int index=findDriverById(bd,id);
    
    if (index!=-1)
    {
        Driver d;
        printf("enter the number of bid\n");
        scanf("%d",&bd->base[i].bid);
    }
    else
        printf("Driver doesn't exist\n\n");
}
 
void addDrivercost(BaseDriver *bd)
{
    printf("Enter a id of driver\n");
    int id, i=0;
    scanf("%d",&id);
    int index=findDriverById(bd,id);
    
    if (index!=-1)
    {
        Driver d;
        printf("issuance of money to spend\n");
        scanf("%d",&bd->base[i].cost);
    }
    else
        printf("Driver doesn't exist\n\n");
}
 
void addCarmileage(BaseCar *bp)
{
    printf("Enter a id of car\n");
    int id,z1, i=0,z=0,p=0;
    scanf("%d",&id);
    int index=findCarById(bp,id);
    
    if (index!=-1)
    {
        printf("Enter the number of spent fuel\n");
        scanf("%d",&z);
        p=z*5;
        printf("Brand - %s\n",bp->base[i].brand);
        printf("mileage - %d\n",p);
        z1=bp->base[i].mileage+p;
        printf("actual mileage - %d\n\n", z1);
    }
    else
        printf("Driver doesn't exist\n\n");
}

Решение задачи: «Преобразование кода из с++ в с#»

textual
Листинг программы 
using System;
using System.IO;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
 
namespace ConsoleApplication6
{
    class Program
    {
        struct Date
            {
                public int day;
                public int month;
                public int year;
            }
 
        void saveDate (Date d)
        {
            FileInfo fi = new FileInfo(@"C:\Users\Виталий\Desktop\MyTest.txt");
            using (StreamWriter sw = fi.AppendText())
            sw.WriteLine("{0}\n {1}\n {2}\n",d.day, d.month, d.year);
     
        }
        Date loadDate(Date d)
        {
            FileInfo fi = new FileInfo(@"C:\Users\Виталий\Desktop\MyTest.txt");
            using (StreamReader sr = fi.OpenText())
            {
                string s = "";
                while ((s = sr.ReadLine(/*d.day, d.month, d.year*/)) != null)
                {
                    Console.WriteLine(s);
                }
                return d;
            }
        }
        void printDate(Date d)
        {
            Console.Write("Day - {0}\nMonth - {1}\nYear - {2}\n",d.day,d.month,d.year);
        }
        Date scanDate(Date d)
        {
            Console.Write("Enter Date\n");
            Console.Write("Enter a day\n");
            d.day = Convert.ToInt32(Console.ReadLine());
            Console.Write("Enter a month\n");
            d.month=Convert.ToInt32(Console.ReadLine());
            Console.Write("Enter a year\n");
            d.year = Convert.ToInt32(Console.ReadLine());
 
            return d;
        }
 
         struct Car
            {
                Date dateofinspection;
                int consumption;
                char brand;
                char number;
                int id;
                int owner;
                int mileage;
            }
  
        struct BaseCar
        {
    
            int count;
            int lastId;
        } 
        struct Driver
        {
            char name;
            int id;
            int cost;
            int bid;
        } 
        struct BaseDriver
        {
            int count;
            int lastId;
        }

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