Calculation fro amount

Question

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.

Kunal Vaishya · Answer

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

Vulpes · Answer

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 Nayak · Answer

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