Want help on inheritance of forms in c# - c#-3.0

Question

I have created a form which prints the average and grades of a student. I want to inherit the properties of that form to another form. How can it be achieved? I am a beginner in c#.Please help.
this is the form from which i want to inherit
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
namespace formstud
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
private void textBox1_TextChanged(object sender, EventArgs e)
{
}
private void textBox2_TextChanged(object sender, EventArgs e)
{
}
private void button1_Click(object sender, EventArgs e)
{
String str = textBox1.Text;
textBox2.Text = str;
}
private void button1_Click_1(object sender, EventArgs e)
{
int a, b, c, d;
a = Convert.ToInt32(textBox3.Text);
b = Convert.ToInt32(textBox4.Text);
c = Convert.ToInt32(textBox5.Text);
d = (a + b + c) / 3;
if (d <= 50 && d >= 40)
{
label1.Text = "A";
}
else if (d >= 30 && d <= 40)
{
label1.Text = "B";
}
else
label1.Text = "C";
label7.Text = Convert.ToString(d);
}
private void label1_Click(object sender, EventArgs e)
{
}
private void label7_Click(object sender, EventArgs e)
{
}
}
}
this is the derived form i created
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
namespace formstud
{
public partial class Form2 : formstud.Form1
{
public Form2()
{
InitializeComponent();
}
}
}

Answer 1

You need to do the following :-
public partial class Form1 : Form
{
public int PropertyA { get; set; }
public int PropertyB { get; set; }
public Form1()
{
InitializeComponent();
}
}
public partial class Form2 : Form1
{
public Form2()
{
InitializeComponent();
PropertyA = 1;
PropertyB = 2;
}
}
A quick Explanation on this. In Form1, I have created two Public properties, PropertyA and PropertyB.
I then create Form2, only this time i inherit from the Form1 class, rather than Form. This gives me access to PropertyA & PropertyB, without declaring them.
This is just one example, you could draw up an interface, which is kinda like a contract, that suggests any form I build, where i quote this interface, it must implement these properties.
public interface IProperties
{
int PropertyA { get; set; }
int PropertyB { get; set; }
}
Now Form1 & Form2 can just look like this :-
public partial class Form2 : Form, IProperties
{
public Form2()
{
InitializeComponent();
}
public int PropertyA { get; set; }
public int PropertyB { get; set; }
}