C# Menu Driven Student Mark List Preparation with persistant data
Here is C# source code Menu Driven Student Mark List Preparation with persistant data. You can add student name and marks for 5 subjects. Then you will have an option to view, edit and delete the student and marks information.
All the data you entered would be saved into a file. so that if you are re running the program, then you do not have add any old data.
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C# Menu Driven Student Mark List Preparation with persistant data
To get the simple version of student marklist with out menu and streaming
Source Code
using System;
using System.Collections.Generic;
using System.Text;
using System.Runtime.InteropServices;
namespace ConsoleHelperFunction
{
public class ConsoleHelper
{
[StructLayout(LayoutKind.Sequential)]
struct POSITION
{
public short x;
public short y;
}
// http://msdn.microsoft.com/en-us/library/ms682073
[DllImport("kernel32.dll", EntryPoint = "GetStdHandle", SetLastError = true, CharSet = CharSet.Auto, CallingConvention = CallingConvention.StdCall)]
private static extern int GetStdHandle(int nStdHandle);
[DllImport("kernel32.dll", EntryPoint = "SetConsoleCursorPosition", SetLastError = true, CharSet = CharSet.Auto, CallingConvention = CallingConvention.StdCall)]
private static extern int SetConsoleCursorPosition(int hConsoleOutput, POSITION dwCursorPosition);
public void gotoxy(short x, short y)
{
const int STD_OUTPUT_HANDLE = -11;
int hConsoleHandle = GetStdHandle(STD_OUTPUT_HANDLE);
POSITION position;
position.x = x;
position.y = y;
SetConsoleCursorPosition(hConsoleHandle, position);
}
[StructLayout(LayoutKind.Sequential)]
struct CONSOLERECT
{
public short Left;
public short Top;
public short Right;
public short Bottom;
}
[StructLayout(LayoutKind.Sequential)]
struct CONSOLEBUFFER
{
public POSITION size;
public POSITION position;
public int attrib;
public CONSOLERECT window;
public POSITION maxsize;
}
[DllImport("kernel32.dll", EntryPoint = "FillConsoleOutputCharacter", SetLastError = true, CharSet = CharSet.Auto, CallingConvention = CallingConvention.StdCall)]
private static extern int FillConsoleOutputCharacter(int handleConsoleOutput, byte fillchar, int len, POSITION writecord, ref int numberofbyeswritten);
[DllImport("kernel32.dll", EntryPoint = "GetConsoleScreenBufferInfo", SetLastError = true, CharSet = CharSet.Auto, CallingConvention = CallingConvention.StdCall)]
private static extern int GetConsoleScreenBufferInfo(int handleConsoleOutput, ref CONSOLEBUFFER bufferinfo);
public void ClearScreen()
{
const int STD_OUTPUT_HANDLE = -11;
int hConsoleHandle = GetStdHandle(STD_OUTPUT_HANDLE);
int hWrittenChars = 0;
CONSOLEBUFFER strConsoleInfo = new CONSOLEBUFFER();
POSITION pos;
pos.x = pos.y = 0;
GetConsoleScreenBufferInfo(hConsoleHandle, ref strConsoleInfo);
FillConsoleOutputCharacter(hConsoleHandle, 32, strConsoleInfo.size.x * strConsoleInfo.size.y, pos, ref hWrittenChars);
SetConsoleCursorPosition(hConsoleHandle, pos);
}
}
}
namespace CSMarkList
{
class CStudent
{
public string name;
public int[] marks = new int[5];
public int total;
}
class CStudents
{
public string filename = "c:\\csstudents.bin";
public List<CStudent> m_studList = new List<CStudent>();
public int m_nMaxStudents;
public int ReadAllRecords()
{
m_studList.Clear();
m_nMaxStudents = 0;
if (System.IO.File.Exists(filename) == false)
return 0;
System.IO.Stream s1 = System.IO.File.Open(filename, System.IO.FileMode.Open);
System.IO.BinaryReader f1 = new System.IO.BinaryReader(s1);
m_nMaxStudents = f1.ReadInt32();
for (int i = 0; i < m_nMaxStudents; i++)
{
CStudent stud = new CStudent();
stud.name = f1.ReadString();
for (int j = 0; j < 5; j++)
stud.marks[j] = f1.ReadInt32();
stud.total = f1.ReadInt32();
m_studList.Add(stud);
}
f1.Close();
return m_nMaxStudents;
}
public int WriteAllRecords()
{
System.IO.Stream s2 = System.IO.File.Open(filename, System.IO.FileMode.Create);
System.IO.BinaryWriter f2 = new System.IO.BinaryWriter(s2);
m_nMaxStudents = m_studList.Count;
f2.Write(m_nMaxStudents);
for(int i = 0; i < m_nMaxStudents; i++)
{
f2.Write(m_studList[i].name);
for (int j = 0; j < 5; j++)
f2.Write(m_studList[i].marks[j]);
f2.Write(m_studList[i].total);
}
f2.Close();
return m_nMaxStudents;
}
public int AddRecord(string name, int[] marks)
{
CStudent stud = new CStudent();
stud.name = name;
stud.marks = marks;
stud.total = 0;
for (int i = 0; i < 5; i++)
stud.total += stud.marks[i];
m_studList.Add(stud);
m_nMaxStudents = m_studList.Count;
WriteAllRecords();
return 1;
}
public int EditRecord(int index, string name, int[] marks)
{
CStudent stud = new CStudent();
stud.name = name;
stud.marks = marks;
stud.total = 0;
m_studList[index] = stud;
m_nMaxStudents = m_studList.Count;
WriteAllRecords();
return 1;
}
public int DeleteRecord(int index)
{
m_studList.RemoveAt(index);
WriteAllRecords();
return 1;
}
}
class Program
{
static public CStudents theStudents = new CStudents();
static public void gotoxy(int x, int y)
{
gotoxy((short)x, (short)y);
}
static void gotoxy(short x, short y)
{
ConsoleHelperFunction.ConsoleHelper ch = new ConsoleHelperFunction.ConsoleHelper();
ch.gotoxy(x, y);
}
static void clrscr()
{
ConsoleHelperFunction.ConsoleHelper ch = new ConsoleHelperFunction.ConsoleHelper();
ch.ClearScreen();
}
static public int DisplayMainMenu()
{
clrscr();
gotoxy(10,4);
Console.WriteLine("Welcome to Student MarkList Application");
gotoxy(10,5);
Console.WriteLine("___________________________________________");
gotoxy(10,6);
Console.WriteLine("1. Add Student Mark List");
gotoxy(10,7);
Console.WriteLine("2. Edit Student Mark List");
gotoxy(10,8);
Console.WriteLine("3. View Student Mark List");
gotoxy(10,9);
Console.WriteLine("4. Delete Student Mark List");
gotoxy(10,10);
Console.WriteLine("5. Exit");
gotoxy(10,11);
Console.WriteLine("___________________________________________");
gotoxy(10,13);
Console.Write("Enter your Selection: ");
try
{
string s = Console.ReadLine();
return Convert.ToInt32(s);
}
catch (Exception e)
{
return -1;
}
}
static public void ViewRecords()
{
theStudents.ReadAllRecords();
clrscr();
gotoxy(10,4);
Console.WriteLine("Welcome to Student Mark List Application");
gotoxy(10,5);
Console.WriteLine("_______________________________________________________________");
gotoxy(10,6);
Console.WriteLine("SNo Student Name Sub1 Sub2 Sub3 Sub4 Sub5 Total");
gotoxy(10,7);
Console.WriteLine("_______________________________________________________________");
int pos = 8;
// Enable Paging
for(int i = 0; i < theStudents.m_nMaxStudents; i++)
{
gotoxy(10,pos);
Console.WriteLine(i + 1);
gotoxy(14,pos);
Console.WriteLine(theStudents.m_studList[i].name);
gotoxy(33,pos);
Console.WriteLine(theStudents.m_studList[i].marks[0]);
gotoxy(40,pos);
Console.WriteLine(theStudents.m_studList[i].marks[1]);
gotoxy(47,pos);
Console.WriteLine(theStudents.m_studList[i].marks[2]);
gotoxy(54,pos);
Console.WriteLine(theStudents.m_studList[i].marks[3]);
gotoxy(61,pos);
Console.WriteLine(theStudents.m_studList[i].marks[4]);
gotoxy(68,pos);
Console.WriteLine(theStudents.m_studList[i].total);
pos++;
}
gotoxy(10,pos++);
Console.WriteLine("_______________________________________________________________");
pos++;
gotoxy(10,pos++);
}
static public void InputRecords()
{
while(true)
{
clrscr();
gotoxy(10,4);
Console.WriteLine("Welcome to Student Mark List Application");
gotoxy(10,5);
Console.WriteLine("__________________________________________________________");
gotoxy(10,6);
Console.WriteLine("Student Name: ");
gotoxy(10,7);
Console.WriteLine("Sub1 Mark: ");
gotoxy(10,8);
Console.WriteLine("Sub2 Mark: ");
gotoxy(10,9);
Console.WriteLine("Sub3 Mark: ");
gotoxy(10,10);
Console.WriteLine("Sub4 Mark: ");
gotoxy(10,11);
Console.WriteLine("Sub5 Mark: ");
gotoxy(10,12);
Console.WriteLine("__________________________________________________________");
gotoxy(23,6);
string name;
name = Console.ReadLine();
int[] marks = new int[5];
for(int i = 0; i < 5; i++)
{
gotoxy(23,7 + i);
marks[i] = Convert.ToInt32(Console.ReadLine());
}
theStudents.AddRecord(name, marks);
gotoxy(10,14);
Console.WriteLine("Do you want to add another record (Y/N)? ");
char ch = Console.ReadKey().KeyChar;
if(ch == 'Y' || ch == 'y')
continue;
else
break;
}
}
static public void EditRecords()
{
ViewRecords();
Console.WriteLine("Enter the serial number you want to edit: ");
int m = Convert.ToInt32(Console.ReadLine()); ;
if(m >= 1 && m <= theStudents.m_nMaxStudents)
{
clrscr();
gotoxy(10,4);
Console.WriteLine("Welcome to Student Mark List Application");
gotoxy(10,5);
Console.WriteLine("__________________________________________________________");
gotoxy(10,6);
Console.WriteLine("Student Name: ");
gotoxy(10,7);
Console.WriteLine("Sub1 Mark: ");
gotoxy(10,8);
Console.WriteLine("Sub2 Mark: ");
gotoxy(10,9);
Console.WriteLine("Sub3 Mark: ");
gotoxy(10,10);
Console.WriteLine("Sub4 Mark: ");
gotoxy(10,11);
Console.WriteLine("Sub5 Mark: ");
gotoxy(10,12);
Console.WriteLine("__________________________________________________________");
gotoxy(23,6);
string name;
name = Console.ReadLine();
int[] marks = new int[5];
for(int i = 0; i < 5; i++)
{
gotoxy(23,7 + i);
marks[i] = Convert.ToInt32(Console.ReadLine());
}
theStudents.EditRecord(m - 1, name, marks);
gotoxy(10,12);
Console.WriteLine("Record updated. Press any key to return to Main Menu");
Console.ReadKey();
}
else
{
gotoxy(10,12);
Console.WriteLine("Invalid Entry. Press any key to return to Main Menu");
Console.ReadKey();
}
}
static public void DeleteRecords()
{
ViewRecords();
Console.WriteLine("Enter the serial number you want to delete: ");
int m = Convert.ToInt32(Console.ReadLine()); ;
if(m >= 1 && m <= theStudents.m_nMaxStudents)
{
theStudents.DeleteRecord(m - 1);
Console.WriteLine("Record deleted. Press any key to return to Main Menu");
Console.ReadKey(); ;
}
else
{
Console.WriteLine("Invalid Entry. Press any key to return to Main Menu");
Console.ReadKey(); ;
}
}
static void Main(string[] args)
{
theStudents.ReadAllRecords();
while(true)
{
int selection = DisplayMainMenu();
if (selection == -1)
continue;
switch(selection)
{
case 1:
InputRecords();
break;
case 2:
EditRecords();
break;
case 3:
{
ViewRecords();
Console.Write("Press any key to return to Main Manu: ");
Console.ReadKey();
}
break;
case 4:
DeleteRecords();
break;
case 5:
default:
return;
};
}
}
}
}
Output
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