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Adding reference of ClassLibrary to a project By:Tanuj Kumar


Adding reference of ClassLibrary to a project:

Adding reference of ClassLibrary to a projec

Problem 1:-->
Windowform1:
Step1:right click on add reference click browse goto classlibrary1>bin>debug> classlibrary1.dll
             
Adding reference of ClassLibrary to a project
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using ClassLibrary1;
namespace WindowsFormsApplication1
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }
        Class1 obj = new Class1();

        private void button1_Click(object sender, EventArgs e)
        {
            double x;
            double y;
             x = double.Parse(textBox1.Text);
            y = double.Parse(textBox2.Text);
            label3.Text=(obj.add(x, y).ToString());
           
        }

        private void button2_Click(object sender, EventArgs e)
        {
            double x = double.Parse(textBox1.Text);
            double y = double.Parse(textBox2.Text);
            label3.Text=(obj.sub(x, y).ToString());
        }

        private void button3_Click(object sender, EventArgs e)
        {
            double x = double.Parse(textBox1.Text);
            double y = double.Parse(textBox2.Text);
           label3.Text=(obj.mul(x, y).ToString());
        }

        private void button4_Click(object sender, EventArgs e)
        {
            double x = double.Parse(textBox1.Text);
            double y = double.Parse(textBox2.Text);
            label3.Text=(obj.div(x, y).ToString());
        }

        private void label3_Click(object sender, EventArgs e)
        {

        }

        private void button5_Click(object sender, EventArgs e)
        {
            double x = double.Parse(textBox1.Text);
          //x = double.Parse(textBox2.Text);
            label3.Text = (obj.root(x).ToString());
        }
    }
}

Classlibrary1:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace ClassLibrary1
{
    public class Class1
    {

      
       public double add(double a, double b) {

            double c;
            c = a + b;
            return c;
        }
       public double sub(double a, double b)
        {

            double c;
            c = a-b;
            return c;
        }
      public  double mul(double a, double b)
        {

            double c;
            c = a* b;
            return c;
        }
       public double div(double a, double b)
        {

            double c;
            c = a / b;
            return c;
        }
       public double root(double a)
       {
           double c= Math.Sqrt(a);
           return c;
       }
    }
}
Build classlibrary “ctrl+shift+b”
Posted By:Tanuj Kumar 
On:Shareyourconscience



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