.Net Chit-Chat: Creating cash register using WPF

Cash Register GUI, Implement Solution for this.

Add full functionality to the cash register GUI

· Accept a valid decimal number

· Enter : adds the value to subtotal

· Total : calculate 13% HST and present Tax and Total

· Delete : Deletes value field

· Clear : empty register.

XAML Code:-

Code Behind:-

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;

namespace Vdesai_Assign1A
{
    /// <summary>
    /// Interaction logic for Window1.xaml
    /// </summary>
    public partial class Window1 : Window
    {
        int count = 0;
        public Window1()
        {
            InitializeComponent();
        }
        private void NumberBtn(object sender, RoutedEventArgs e)
        {
            if (((Button)e.OriginalSource).Content.ToString() == ".")
            {
                if (!(textBox1.Text.Contains(".")))
                {
                    textBox1.Text += ((Button)e.OriginalSource).Content.ToString();
                }
                else
                {
                    MessageBox.Show("Input String Not in correct format");
                }
                Keyboard.Focus(textBox1);
            }
            else
                textBox1.Text += ((Button)e.OriginalSource).Content.ToString();
            Keyboard.Focus(textBox1);
        }

        private void EnterBtn_Click(object sender, RoutedEventArgs e)
        {

            if (SubTxt.Text == string.Empty)
            {
                SubTxt.Text = textBox1.Text;
                textBox1.Text = string.Empty;

            }
            else
            {
                decimal a;
                a = Convert.ToDecimal(textBox1.Text);
                decimal b;
                b = Convert.ToDecimal(SubTxt.Text);
                decimal c;
                c = a + b;
                textBox1.Text = string.Empty;
                SubTxt.Text = c.ToString("0.00");
                //                Keyboard .Focus ()
            }
            Keyboard.Focus(textBox1);
        }

        private void TotalBtn_Click(object sender, RoutedEventArgs e)
        {
            decimal tot = Convert.ToDecimal(SubTxt.Text);
            TaxTxt.Text = (((tot) * 13 / 100) + ((tot) * 5 / 100)).ToString();
            decimal tax = Convert.ToDecimal(TaxTxt.Text);
            TotTxt.Text = (tot + tax).ToString();
            Keyboard.Focus(textBox1);
        }

        private void DeleteBtn_Click(object sender, RoutedEventArgs e)
        {
            textBox1.Text = string.Empty;
            Keyboard.Focus(textBox1);
        }

        private void ClearBtn_Click(object sender, RoutedEventArgs e)
        {
            textBox1.Text = string.Empty;
            SubTxt.Text = string.Empty;
            TaxTxt.Text = string.Empty;
            TotTxt.Text = string.Empty;
            Keyboard.Focus(textBox1);
        }

        private void PreviewkeyDown(object sender, KeyEventArgs e)
        {
            bool isNumPadNumeric = (e.Key >= Key.NumPad0 && e.Key <= Key.NumPad9) || e.Key == Key.Decimal;
            bool isNumeric = (e.Key >= Key.D0 && e.Key <= Key.D9) || e.Key == Key.OemPeriod;

            if ((isNumeric || isNumPadNumeric) && Keyboard.Modifiers != ModifierKeys.None)
            {
                e.Handled = true;
                return;
            }

            bool isControl = ((Keyboard.Modifiers != ModifierKeys.None && Keyboard.Modifiers != ModifierKeys.Shift)
                || e.Key == Key.Back || e.Key == Key.Delete || e.Key == Key.Insert
                || e.Key == Key.Down || e.Key == Key.Left || e.Key == Key.Right || e.Key == Key.Up
                || e.Key == Key.Tab
                || e.Key == Key.PageDown || e.Key == Key.PageUp
                || e.Key == Key.Enter || e.Key == Key.Return || e.Key == Key.Escape
                || e.Key == Key.Home || e.Key == Key.End);

            e.Handled = !isControl && !isNumeric && !isNumPadNumeric;

        }

        private void textBox1_KeyDown(object sender, KeyEventArgs e)
        {
            bool isNumPadNumeric = (e.Key >= Key.NumPad0 && e.Key <= Key.NumPad9) || e.Key == Key.Decimal;
            bool isNumeric = (e.Key >= Key.D0 && e.Key <= Key.D9) || e.Key == Key.OemPeriod;

            if ((isNumeric || isNumPadNumeric) && Keyboard.Modifiers != ModifierKeys.None)
            {
                if ((e.Key == Key.Decimal) && (e.Key == Key.Enter))
                {
                    if (textBox1.Text.Contains("."))
                    {
                        MessageBox.Show("Input String not in correct format");
                    }
                }

                e.Handled = true;
                return;
            }

            else if (e.Key == Key.Enter)
            {
                if (textBox1.Text.Contains("."))
                {

                }
                EnterBtn.Focus();
                if (SubTxt.Text == string.Empty)
                {
                    SubTxt.Text = textBox1.Text;
                    textBox1.Text = string.Empty;
                }
                else
                {
                    decimal a;
                    a = Convert.ToDecimal(textBox1.Text);
                    decimal b;
                    b = Convert.ToDecimal(SubTxt.Text);
                    decimal c;
                    c = a + b;
                    textBox1.Text = string.Empty;
                    SubTxt.Text = c.ToString("0.00");
                }
                Keyboard.Focus(textBox1);
            }
            bool isControl = ((Keyboard.Modifiers != ModifierKeys.None && Keyboard.Modifiers != ModifierKeys.Shift)
                || e.Key == Key.Back || e.Key == Key.Delete || e.Key == Key.Insert
                || e.Key == Key.Down || e.Key == Key.Left || e.Key == Key.Right || e.Key == Key.Up
                || e.Key == Key.Tab
                || e.Key == Key.PageDown || e.Key == Key.PageUp
                || e.Key == Key.Return || e.Key == Key.Escape
                || e.Key == Key.Home || e.Key == Key.End);

            e.Handled = !isControl && !isNumeric && !isNumPadNumeric;

        }

        private void Window_Loaded(object sender, RoutedEventArgs e)
        {
            Keyboard.Focus(textBox1);
        }

        private void Preview_TextInput(object sender, TextCompositionEventArgs e)
        {
            foreach (char ch in e.Text)
            {
                if (e.Text.Contains('.')) count++;
                if (count <= 1)
                {
                    if (!(Char.IsDigit(ch) || ch.Equals('.')))
                        e.Handled = true;
                }
                else
                    if (!(Char.IsDigit(ch)))
                        e.Handled = true;
            }
        }
    }
}

.Net Chit-Chat

Thursday, 1 March 2012

Creating cash register using WPF

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