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Calculator C# program simple one have a issue

Posted on 2011-03-09

3 solutions

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Last Modified: 2012-06-27

Hi,

Calculator C# program simple one have a issue

The below code. I want a message like

Sum of a and B : (here the total)
Substraction of a and b: (Here the answer)

Just a message so the label is not seen as we open the calc

Experts please help.

regards
Raja

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;

namespace WindowsApplication1
{
    public partial class Form1 : Form
    {
        int a,b,c;
    

        public Form1()
        {
            InitializeComponent();
        }

        private void Form1_Load(object sender, EventArgs e)
        {

        }

        private void button1_Click(object sender, EventArgs e)
        {

            a = int.Parse(textBox1.Text);
            b = int.Parse(textBox2.Text);
            c = a + b;
                   
            label.Text = c.ToString();
        }

        private void textBox1_TextChanged(object sender, EventArgs e)
        {

        }

        private void button2_Click(object sender, EventArgs e)
        {

            a = int.Parse(textBox1.Text);
            b = int.Parse(textBox2.Text);
            c = a - b;

            label3.Text = c.ToString();

        }
    }
}

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Comment

Question by:bsharath

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4 Comments

LVL 10

Expert Comment

by:peetm

ID: 350817622011-03-09

If the textboxes are 'pre-loaded', which it seems they are, and, as you're not interested in sender/e, then you can call the button-click from the form_load:

private void Form1_Load(object sender, EventArgs e)
{
button1_Click(sender, e)
}

LVL 10

Assisted Solution

by:peetm

peetm earned 500 total points

ID: 350817672011-03-09

LVL 10

Accepted Solution

by:gavsmith

gavsmith earned 1000 total points

ID: 350817892011-03-09

Do you mean like this:

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;

namespace WindowsApplication1
{
    public partial class Form1 : Form
    {
        int a,b,c;
    

        public Form1()
        {
            InitializeComponent();
        }

        private void Form1_Load(object sender, EventArgs e)
        {

        }

        private void button1_Click(object sender, EventArgs e)
        {

            a = int.Parse(textBox1.Text);
            b = int.Parse(textBox2.Text);
            c = a + b;
                   
            label.Text = "Sum of A and B: " + c.ToString();
        }

        private void textBox1_TextChanged(object sender, EventArgs e)
        {

        }

        private void button2_Click(object sender, EventArgs e)
        {

            a = int.Parse(textBox1.Text);
            b = int.Parse(textBox2.Text);
            c = a - b;

            label3.Text = "Subtraction of A and B: " + c.ToString();

        }
    }
}

Open in new window

or maybe this:

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;

namespace WindowsApplication1
{
    public partial class Form1 : Form
    {
        int a,b,c;
    

        public Form1()
        {
            InitializeComponent();
        }

        private void Form1_Load(object sender, EventArgs e)
        {

        }

        private void button1_Click(object sender, EventArgs e)
        {

            a = int.Parse(textBox1.Text);
            b = int.Parse(textBox2.Text);
            c = a + b;
                   
            label.Text = "Sum of " + a.ToString() + " and " b.ToString() + ": " + c.ToString();
        }

        private void textBox1_TextChanged(object sender, EventArgs e)
        {

        }

        private void button2_Click(object sender, EventArgs e)
        {

            a = int.Parse(textBox1.Text);
            b = int.Parse(textBox2.Text);
            c = a - b;

            label3.Text = "Subtraction of " + a.ToString() + " and " b.ToString() + ": " + c.ToString();
        }
    }
}

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Please let me know if I'm misunderstanding your question.

HTH
Gav

LVL 53

Assisted Solution

by:Dhaest

Dhaest earned 500 total points

ID: 350818072011-03-09

Do you want some kind of messagebox ?

private void button1_Click(object sender, EventArgs e)
        {

            a = int.Parse(textBox1.Text);
            b = int.Parse(textBox2.Text);
            c = a + b;
                   
            label.Text = c.ToString();
           MessageBox.Show(this, "Sum of " + textBox1.Text +" and " + textBox2.Text + " : " + c.ToString() ;
       }

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