Calculation fro amount

14y1.4kVisual Basic .NET

Basic textbox textbox
Example
Basic 2720 2193(i want arrive this(2193) amount when i type 2720)

in the first textbox i type the amount 2720

in the second textbox i want (2720/31)25 = 2193

how to do?please send the code using csharp.

3 Replies

Know the answer? Post it — somebody with the same question will find it here.

Kunal Vaishya14y ago
Dear Do like this

            decimal AmountA, AmountB;
            AmountA = Convert.ToDecimal(textBox1.Text);
            AmountB = (AmountA / 31) * 25;
            textBox2.Text = System.Math.Floor(AmountB).ToString();

in Text change event of Textbox1
Vulpes14y ago
Satyapriya's code will recalculate the amount shown in the second textbox each time a character is typed into the first textbox.

If you want to wait until the whole number is entered and focus is moved to a different control, then you can handle the Leave event instead:

private void textBox1_Leave(object sender, System.EventArgs e)
{
int val;
int.TryParse(textBox1.Text, out val);
double temp = val/31.0 * 25.0;
val = (int)temp;
textBox2.Text = val.ToString();
}
Satyapriya Nayak14y ago
Hi Narasiman,

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;

namespace test
{
    public partial class Form2 : Form
    {
        public Form2()
        {
            InitializeComponent();
        }


        private void textBox1_TextChanged(object sender, EventArgs e)
        {

            decimal a, b;
            a = Convert.ToDecimal(textBox1.Text);
            b = (a / 31) * 25;
            textBox2.Text = b.ToString();
            textBox2.Text = textBox2.Text.Substring(0, 4);

        }


    }
}

Thanks