68 lines
1.9 KiB
C#
68 lines
1.9 KiB
C#
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using System;
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using System.Collections.Generic;
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using System.ComponentModel;
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using System.Data;
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using System.Drawing;
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using System.Globalization;
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using System.Linq;
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using System.Text;
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using System.Threading.Tasks;
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using System.Windows.Forms;
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namespace Lab1
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{
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public partial class Form1 : Form
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{
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RadioButton selection = null;
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ParkingType parkingType;
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public Form1()
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{
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InitializeComponent();
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}
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private void CustomerTypeChange_CheckedChanged(object sender, EventArgs e)
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{
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selection = (RadioButton)sender;
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if (selection == radioButton1) parkingType = new CustomerParking();
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else parkingType = new StaffParking();
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UpdateValue();
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}
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private void HoursEntered_TextChanged(object sender, EventArgs e)
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{
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UpdateValue();
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}
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private void UpdateValue()
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{
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string hoursEnteredText = hoursEntered.Text.Length > 0 ? hoursEntered.Text : "0";
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try
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{
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totalValue.Text = parkingType.Calculate(Convert.ToDecimal(hoursEnteredText)).ToString("C", CultureInfo.GetCultureInfo("en-NZ"));
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WarningLabel.Visible = false;
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}
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catch (ParkingException ex)
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{
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WarningLabel.Visible = true;
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totalValue.Text = "$-.--";
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}
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}
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private void HoursEntered_KeyPress(object sender, KeyPressEventArgs e)
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{
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if (!char.IsControl(e.KeyChar) && !char.IsDigit(e.KeyChar) &&
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(e.KeyChar != '.'))
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{
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e.Handled = true;
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}
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// only allow one decimal point
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if ((e.KeyChar == '.') && ((sender as TextBox).Text.IndexOf('.') > -1))
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{
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e.Handled = true;
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}
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}
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}
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}
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