Introduction to Windows Controls
Introduction to Windows Controls
Fundamental Controls
Introduction to the Button
An operating system provides you with the tools to interact with the computer. The visual tools are represented by graphic objects referred to as Windows controls, or controls. One of the most common controls is the button. The primary purpose of the button is to let you click to cause an action.
To support buttons, the .NET Framework provides the Button class. To visually create a button, in the Toolbox, click the Button control and click the form.
After visually adding a button to an application, you can configure it in the Properties window. Probably the two most important characteristics of a button are the text it displays and its Click event. To support its text, the Button class is equipped with the Text property. As for its Click event, you can simply double-click the button, and then write your code for the event.
Introduction to Labels
A text-based control is an object whose primary purpose is to display text. Like most operating systems, Microsoft Windows provides many controls, with various goals, to display text.
As the primary way to support text display, the .NET Framework provides a class named Label. It is available in the Toolbox by button of the same name. Therefore, to have a label in your application, you can click the Label control in the Toolbox and click the form. To dynamically create a label, declare a Label variable and initialize it with the new operator.
The primary job of a label is to display text. Therefore, the Label class is equipped with the Text property. An important characteristic of a label is to make its text fancy. To make this possible, you can customize its Font, its ForeColor, its BackColor, etc properties.
Practical Learning: Introducing the Label Controls
| Control | (Name) | BackColor | Text | Font | ForeColor | AutoSize | |
| Label |  |
lblOperand1 | 00 | Times New Roman, 72pt, style=Bold | Blue | False | |
| Label | |
+ | Tahoma, 72pt, style=Bold | Maroon | |||
| Label | |
lblOperand2 | 00 | Times New Roman, 72pt, style=Bold | Blue | False | |
| Label | |
= | Dark Green | Tahoma, 72pt, style=Bold | Maroon | ||
| TextBox |  |
txtResult | 000 | Times New Roman, 72pt, style=Bold | Blue | ||
| Label | |
lblNewOperation | Maroon | New Operation | Tahoma, 48pt, style=Bold | White | False |
| Label | |
lblCheck | Maroon | Check | Times New Roman, 36pt, style=Bold | White | False |
| Label | |
_____Close_____ | Times New Roman, 48pt, style=Bold | ||||
namespace ElementaryAddition1
{
public partial class ElementaryAddition : Form
{
public ElementaryAddition()
{
InitializeComponent();
}
private void lblNewOperation_Click(object sender, EventArgs e)
{
int operand1;
int operand2;
Random rnd = new Random();
operand1 = rnd.Next(99);
operand2 = rnd.Next(99);
int result = operand1 + operand2;
lblOperand1.Text = operand1.ToString();
lblOperand2.Text = operand2.ToString();
txtResult.Text = "";
txtResult.Focus();
}
private void lblCheckAnswer_Click(object sender, EventArgs e)
{
int operand1 = int.Parse(lblOperand1.Text);
int operand2 = int.Parse(lblOperand2.Text);
int result = int.Parse(txtResult.Text);
if (result == (operand1 + operand2))
MessageBox.Show("WOW - Good Answer", "Elementary Addition",
MessageBoxButtons.OK, MessageBoxIcon.Information);
else
MessageBox.Show("Sorry - Wrong Answer", "Elementary Addition",
MessageBoxButtons.OK, MessageBoxIcon.Information);
lblNewOperation_Click(sender, e);
}
private void ElementaryAddition_Load(object sender, EventArgs e)
{
lblNewOperation_Click(sender, e);
}
private void lblQuit_Click(object sender, EventArgs e)
{
Close();
}
}
}
The Link Label
A link label is a special that allows you to create a connection from one object of an application, such as a form, to another object, such as another form.
Picture Controls
The Picture Box
A picture box is a control used to display a picture. The picture in one of the regular formats supported by most operating systems. The picture is put in a rectangular picture box with an initial size. In most cases, the picture box and the picture are originally not the same size. You can make the picture fit the picture box, you can make the picture box fit the picture, and you have many other options.
To support picture boxes, the .NET Framework provides a class named PictureBox. To add a picture box to your application, you can declare a variable of this object or, in the Toolbox, click the PictureBox button and click the form of your application.
Practical Learning: Introducing the Picture Box
namespace AutoPartsInventory1.Models
{
internal readonly struct AutoPart
{
internal long PartNumber { get; init; }
internal string? PartCategory { get; init; }
internal string? PartName { get; init; }
internal double UnitPrice { get; init; }
public AutoPart()
: this(100_000, "Generix", "Generic", 0.00d)
{
}
public AutoPart(long number, string category,
string name, double price)
{
(PartNumber, PartCategory, PartName, UnitPrice) =
(number, category, name, price);
}
}
}
| Controls | (Name) | Text | Other Properties | |
| Label | |
Part Category: | Font - Bold: True | |
| Label | |
lblPartCategory | Font - Bold: True | |
| Label | |
Unit Price: | ||
| Label | |
lblUnitPrice | ||
| Label | |
Part Name/Description: | ||
| Label | |
lblPartName | Font - Bold: True | |
| PictureBox |  |
pbxAutoPart | BorderStyle: FixedSingle SizeMode: AutoSize |
|
using AutoPartsInventory1.Models;
namespace AutoPartsInventory1
{
public partial class AutoPartsInventory : Form
{
internal AutoPart[]? AutoParts { get; set; }
public AutoPartsInventory()
{
InitializeComponent();
}
private void AutoPartsInventory_Load(object sender, EventArgs e)
{
AutoParts = new AutoPart[25];
AutoParts[0] = new AutoPart()
{
// https://www.functionx.com/CollegeParkAutoParts/283759.png
PartNumber = 283759,
PartCategory = "Starters",
PartName = "DB Electrical SND0787 Starter",
UnitPrice = 212.58
};
AutoParts[1] = new AutoPart()
{
// https://www.functionx.com/CollegeParkAutoParts/520384.png
PartNumber = 520384,
PartCategory = "Drum Brake",
PartName = "Rear Dynamic Friction Company True - Arc Brake Shoes",
UnitPrice = 42.22
};
AutoParts[2] = new AutoPart()
{
// https://www.functionx.com/CollegeParkAutoParts/927944.png
PartNumber = 927944,
PartCategory = "Bearings & Seals",
PartName = "Wheel Hub Bearing Assembly",
UnitPrice = 48.85
};
AutoParts[3] = new AutoPart()
{
// https://www.functionx.com/CollegeParkAutoParts/148040.png
PartNumber = 148040,
PartCategory = "Alternators & Generators",
PartName = "Alternator",
UnitPrice = 118.37
};
AutoParts[4] = new AutoPart()
{
// https://www.functionx.com/CollegeParkAutoParts/928037.png
PartNumber = 928037,
PartCategory = "Alternators & Generators",
PartName = "DB Electrical Alternator",
UnitPrice = 218.74
};
AutoParts[5] = new AutoPart()
{
// https://www.functionx.com/CollegeParkAutoParts/973947.png
PartNumber = 973947,
PartCategory = "Brake Kits",
PartName = "R1 Concepts Front Rear Brakes and Rotors Kit | Front Rear Brake Pads | Brake Rotors and Pads | Ceramic Brake Pads and Rotors",
UnitPrice = 292.84
};
AutoParts[6] = new AutoPart()
{
// https://www.functionx.com/CollegeParkAutoParts/730283.png
PartNumber = 730283,
PartCategory = "Oil Filters",
PartName = "Hydraulic Cylinder Timing Belt Tensioner",
UnitPrice = 14.15
};
AutoParts[7] = new AutoPart()
{
// https://www.functionx.com/CollegeParkAutoParts/593804.png
PartNumber = 593804,
PartCategory = "Alternators",
PartName = "Alternator",
UnitPrice = 202.47
};
AutoParts[8] = new AutoPart()
{
// https://www.functionx.com/CollegeParkAutoParts/639704.png
PartNumber = 639704,
PartCategory = "Brake Kits",
PartName = "Rear Brakes and Rotors Kit | Rear Brake Pads | Brake Rotors and Pads | Optimum OEp Brake Pads and Rotors",
UnitPrice = 125.15
};
AutoParts[9] = new AutoPart()
{
// https://www.functionx.com/CollegeParkAutoParts/740248.png
PartNumber = 740248,
PartCategory = "Bearings & Seals",
PartName = "Wheel hub bearing Assembly",
UnitPrice = 99.95
};
AutoParts[10] = new AutoPart()
{
// https://www.functionx.com/CollegeParkAutoParts/148073.png
PartNumber = 148073,
PartCategory = "Starters",
PartName = "DB Electrical SND0775 Starter",
UnitPrice = 94.48
};
AutoParts[11] = new AutoPart()
{
// https://www.functionx.com/CollegeParkAutoParts/297149.png
PartNumber = 297149,
PartCategory = "Air Filters",
PartName = "ACDelco Gold A3408C Air Filter",
UnitPrice = 297149
};
AutoParts[12] = new AutoPart()
{
// https://www.functionx.com/CollegeParkAutoParts/290741.png
PartNumber = 290741,
PartCategory = "Struts & Suspension",
PartName = "Front Strut and Coil Spring Assembly - Set of 2",
UnitPrice = 245.68
};
AutoParts[13] = new AutoPart()
{
// https://www.functionx.com/CollegeParkAutoParts/497249.png
PartNumber = 497249,
PartCategory = "Drum Brake",
PartName = "ACDelco Gold 17960BF1 Bonded Rear Drum Brake Shoe Set",
UnitPrice = 58.92
};
AutoParts[14] = new AutoPart()
{
// https://www.functionx.com/CollegeParkAutoParts/293748.png
PartNumber = 293748,
PartCategory = "Alternators",
PartName = "DB Electrical 400 - 40169 Alternator Compatible With / Replacement For 125 Internal Fan Type Decoupler Pulley Type Internal Regulator CW Rotation",
UnitPrice = 215.84
};
AutoParts[15] = new AutoPart()
{
// https://www.functionx.com/CollegeParkAutoParts/503502.png
PartNumber = 503502,
PartCategory = "Alternators",
PartName = "Alternator",
UnitPrice = 114.46
};
AutoParts[16] = new AutoPart()
{
// https://www.functionx.com/CollegeParkAutoParts/938475.png
PartNumber = 938475,
PartCategory = "Starters",
PartName = "DB Electrical SMT0343 Starter",
UnitPrice = 82.66
};
AutoParts[17] = new AutoPart()
{
// https://www.functionx.com/CollegeParkAutoParts/159937.png
PartNumber = 159937,
PartCategory = "Starters",
PartName = "DB Electrical SND0544 Starter",
UnitPrice = 88.88
};
AutoParts[18] = new AutoPart()
{
// https://www.functionx.com/CollegeParkAutoParts/520384.png
PartNumber = 520384,
PartCategory = "Starters",
PartName = "DB Electrical SND0775 Starter",
UnitPrice = 94.48
};
AutoParts[19] = new AutoPart()
{
// https://www.functionx.com/CollegeParkAutoParts/727394.png
PartNumber = 727394,
PartCategory = "Alternators",
PartName = "DB Electrical 400 - 40169 Alternator Compatible With / Replacement For 125 Internal Fan Type Decoupler Pulley Type Internal Regulator CW Rotation",
UnitPrice = 215.84
};
AutoParts[20] = new AutoPart()
{
// https://www.functionx.com/CollegeParkAutoParts/927937.png
PartNumber = 927937,
PartCategory = "Starters",
PartName = "Duralast Starter",
UnitPrice = 188.88
};
AutoParts[21] = new AutoPart()
{
// https://www.functionx.com/CollegeParkAutoParts/308113.png
PartNumber = 308113,
PartCategory = "Brake Kits",
PartName = "Autospecialty Front and Rear Replacement Brake Kit - OE Brake Rotors & Ceramic Brake Pads",
UnitPrice = 315.27
};
AutoParts[22] = new AutoPart()
{
// https://www.functionx.com/CollegeParkAutoParts/829385.png
PartNumber = 829385,
PartCategory = "Drum Brakes",
PartName = "Centric Brake Shoe",
UnitPrice = 829385
};
AutoParts[23] = new AutoPart()
{
// https://www.functionx.com/CollegeParkAutoParts/304031.png
PartNumber = 304031,
PartCategory = "Shocks, Struts & Suspension",
PartName = "Suspension Kit(Front; with 3 Groove Pitman Arm)",
UnitPrice = 142.44
};
AutoParts[24] = new AutoPart()
{
// https://www.functionx.com/CollegeParkAutoParts/799428.png
PartNumber = 799428,
PartCategory = "Bearings & Seals",
PartName = "Front/Rear Wheel Hub Bearing Assembly 5 Lugs w/ ABS",
UnitPrice = 79.97
};
}
private void pbxAutoPart_Click(object sender, EventArgs e)
{
Random rndNumber = new Random();
int number = rndNumber.Next(0, 24);
lblPartCategory.Text = AutoParts?[number].PartCategory;
lblPartName.Text = AutoParts?[number].PartName;
lblUnitPrice.Text = AutoParts?[number].UnitPrice.ToString();
pbxAutoPart.Image = Image.FromFile(@"E:\College Park Auto-Parts\" + AutoParts?[number].PartNumber.ToString() + ".png");
Width = pbxAutoPart.Left + pbxAutoPart.Image.Width + 40;
Height = pbxAutoPart.Top + pbxAutoPart.Image.Height + 60;
}
private void AutoPartsInventory_Activated(object sender, EventArgs e)
{
pbxAutoPart_Click(sender, e);
}
}
}
namespace AwesomeTires1.Models
{
internal record class Employee(string EmployeeNumber,
string EmployeeName,
double BaseHourlyRate,
double BaseTireRate)
{
}
}namespace AwesomeTires1.Models
{
internal record class Payroll
{
public long PayrollNumber { get; init; }
public string? EmployeeNumber { get; init; }
public (string? date, int tires, double pay) Monday { get; init; }
public (string? date, int tires, double pay) Tuesday { get; init; }
public (string? date, int tires, double pay) Wednesday { get; init; }
public (string? date, int tires, double pay) Thursday { get; init; }
public (string? date, int tires, double pay) Friday { get; init; }
public int TotalTires
{
get
{
return Monday.tires + Tuesday.tires + Wednesday.tires + Thursday.tires + Friday.tires;
}
}
public double TotalPay
{
get
{
return Monday.pay + Tuesday.pay + Wednesday.pay + Thursday.pay + Friday.pay;
}
}
}
}using Microsoft.VisualBasic;
namespace TirePayroll1.Models
{
static internal class Repository
{
public static Collection Employees {get; set; }
public static Collection Payrolls { get; set; }
static Repository()
{
Employees = new Collection();
Payrolls = new Collection();
}
}
}Text-Based Boxes
Introduction
A text box is a rectangular object that allows a user to type text, a number, etc in an application. You as the program can retrieve that value and use it any appropriate way you want.
To support text boxes, the .NET Framework provides a class named TextBoxBase that that is based on the Control class:
[System.ComponentModel.DefaultBindingProperty("Text")]
public abstract class TextBoxBase : System.Windows.Forms.Control
The TextBoxBase class provides all the common characteristics that text box controls need.
The Text Box
The most fundamental text box is a simple object made for relatively short strings and numbers. To make this control available, the .NET Framework provides a class named TextBox that that is derived from the TextBoxBase class:
public class TextBox : System.Windows.Forms.TextBoxBase
Based on this, to have a text box in your application, you can declare a variable of type TextBox. To visually add a text box to your application, in the Toolbox, click the TextBox control and click the form of your application. After creating a text box, you can configure its appearance in the Properties window or you can customize the control using code.
A Mask Text Box
A text box allows a user to type any type of character from the keyboard and to type those characters in any order. Depending on the type of application, this behavior can create a mess and confusion. A masked text box is a control made of small sections that are configured to allow and/or exclude other characters.
To help you restrict the type of characters that a user can put in a text box, the .NET Framework provides a class named MaskedTextBox:
[System.ComponentModel.DefaultBindingProperty("Text")]
public class MaskedTextBox : System.Windows.Forms.TextBoxBase
The masked text box is represented in the Toolbox as a control of the same name. Based on this, to create a masked text box, you can declare a variable of type MaskedTextBox or you can click the MaskedTextBox button in the Toolbox and click the form.
The most important part of a masked text box is the ability to make it accept some characters and reject others. To make this possible, the MaskedTextBox class is equipped with a property named Mask. Probably the best way to deal with this property is to configure it visually. To do this, access the Mask property in the Properties window. This would open a dialog box:
Using this dialog box, you can select one of the available formats or you can create one.
Practical Learning: Using the Masked Text Box
| Control | (Name) | Text | Other Properties | |
| Label | |
&Employee #: | ||
| MaskedTextBox |  |
mtbEmployeeNumber | Masked: 000-000 Modifiers: Public |
|
| Label | |
Employee &Name: | ||
| TextBox | |
txtEmployeeName | Modifiers: Public | |
| Label | |
Base &Hourly Rate: | ||
| TextBox | |
txtBaseHourlyRate | Modifiers: Public | |
| Label | |
Base &Tire Rate: | ||
| TextBox | |
txtBaseTireRate | Modifiers: Public | |
| Button |  |
btnSaveEmployee | S&ave Employee Record | DialogResult: OK |
| Button | |
btnClose | &Close | DialogResult: Cancel |
AcceptButton: btnSaveEmployee CancelButton: btnClose
| (Name) | Text | TextAlign | Width |
| colEmployeeId | Id | 40 | |
| colEmployeeNumber | Employee # | Center | 150 |
| colEmployeeName | Employee Name | 250 | |
| colBaseHourlyRate | Base Hourly Rate | Center | 150 |
| colBaseTireRate | Base Tire Rate | Center | 125 |
| Control | (Name) | Text | Other Properties | |
| ListView |  |
lvwEmployees | FullRowSelect: True GridLines: True View: Details |
|
| Button | |
btnNewEmployee | &New Employee... | |
| Button | |
btnClose | &Close | |
using AwesomeTires1.Models;
namespace AwesomeTires1.Employees
{
public partial class ViewAll : Form
{
public ViewAll()
{
InitializeComponent();
}
private void ShowEmployees()
{
lvwEmployees.Items.Clear();
int counter = 1;
foreach (Employee empl in Repository.Employees)
{
ListViewItem lviEmployee = new ListViewItem(counter++.ToString());
lviEmployee.SubItems.Add(empl.EmployeeNumber);
lviEmployee.SubItems.Add(empl.EmployeeName);
lviEmployee.SubItems.Add(empl.BaseHourlyRate.ToString());
lviEmployee.SubItems.Add(empl.BaseTireRate.ToString());
lvwEmployees.Items.Add(lviEmployee);
}
}
private void ViewAll_Load(object sender, EventArgs e)
{
ShowEmployees();
}
private void btnNewEmployee_Click(object sender, EventArgs e)
{
Create hire = new();
if (hire.ShowDialog() == DialogResult.OK)
{
if (string.IsNullOrEmpty(hire.mtbEmployeeNumber.Text))
{
MessageBox.Show("You must enter the employee number.",
"Awesome Tires",
MessageBoxButtons.OK, MessageBoxIcon.Information);
return;
}
Employee staff = new Employee(hire.mtbEmployeeNumber.Text,
hire.txtEmployeeName.Text,
double.Parse(hire.txtBaseHourlyRate.Text),
double.Parse(hire.txtBaseTireRate.Text));
Repository.Employees.Add(staff);
}
ShowEmployees();
}
private void btnClose_Click(object sender, EventArgs e)
{
Close();
}
}
}
| Control | (Name) | Text | TextAlign | Mask | |
| Label | |
&Payroll #: | |||
| TextBox | |
txtPayrollNumber | |||
| Label | |
&Employee #: | |||
| MaskedTextBox | |
mtbEmployeeNumber | Masked: 000-000 | ||
| Button | |
btnFindEmployee | &Find Employee | ||
| Label | |
Employee &Name: | |||
| TextBox | |
txtEmployeeName | |||
| Label | |
Base Rate - &Hourly: | |||
| TextBox | |
txtBaseHourlyRate | |||
| Label | |
Per &Tire: | |||
| TextBox | |
txtBaseTireRate | |||
| GroupBox | |
Work Summary | |||
| Label | |
Day Worked: | |||
| Label | |
Tires Installed | |||
| Label | |
Day Pay | |||
| Label | |
Monday: | |||
| MaskedTextBox | |
mtbMondayDate | Masked: Short date | ||
| TextBox | |
txtMondayTires | |||
| Button | |
btnMonday | = | ||
| TextBox | |
txtMondayPay | Public | ||
| Label | |
Tuesday: | |||
| MaskedTextBox | |
mtbTuesdayDate | Masked: Short date | ||
| TextBox | |
txtTuesdayTires | |||
| Button | |
btnTuesday | = | ||
| TextBox | |
txtTuesdayPay | |||
| Label | |
Wednesday: | |||
| MaskedTextBox | |
mtbWednesdayDate | Masked: Short date | ||
| TextBox | |
txtWednesdayTires | |||
| Button | |
btnWednesday | = | ||
| TextBox | |
txtWednesdayPay | |||
| Label | |
Thursday: | |||
| MaskedTextBox | |
mtbThursdayDate | Masked: Short date | ||
| TextBox | |
txtThursdayTires | |||
| Button | |
btnThursday | = | ||
| TextBox | |
txtThursdayPay | |||
| Label | |
Friday: | |||
| MaskedTextBox | |
mtbFridayDate | Masked: Short date | ||
| TextBox | |
txtFridayTires | |||
| Button | |
btnFriday | = | ||
| TextBox | |
txtFridayPay | Public | ||
| Label | |
_________________________ | |||
| Label | |
Total Tires && Pay: | |||
| TextBox | |
txtotalTires | |||
| TextBox | |
txtotalPay | |||
| Button | |
btnSavePayroll | S&ave Payroll | ||
| Button | |
btnClose | &Close | ||
using AwesomeTires1.Models;
namespace AwesomeTires1.Payrolls
{
public partial class Create : Form
{
public Create()
{
InitializeComponent();
}
private void btnFindEmployee_Click(object sender, EventArgs e)
{
if (string.IsNullOrEmpty(mtbEmployeeNumber.Text))
{
MessageBox.Show("You must enter the employee number.",
"Awesome Tires",
MessageBoxButtons.OK, MessageBoxIcon.Information);
return;
}
foreach (Employee staff in Repository.Employees)
{
if (staff.EmployeeNumber.Equals(mtbEmployeeNumber.Text))
{
txtEmployeeName.Text = staff.EmployeeName;
txtBaseHourlyRate.Text = staff.BaseHourlyRate.ToString();
txtBaseTireRate.Text = staff.BaseTireRate.ToString();
break;
}
}
}
private double EvaluatePay(in string strHourlyRate, in string strTireRate, in string strNumberOfTires)
{
if (string.IsNullOrEmpty(strHourlyRate))
{
MessageBox.Show("You must first type a valid employee number and click Find Employee.",
"Awesome Tires",
MessageBoxButtons.OK, MessageBoxIcon.Information);
return 0.00;
}
if (string.IsNullOrEmpty(strTireRate))
{
MessageBox.Show("You must first type a valid employee number and click Find Employee.",
"Awesome Tires",
MessageBoxButtons.OK, MessageBoxIcon.Information);
return 0.00;
}
if (string.IsNullOrEmpty(strNumberOfTires))
{
MessageBox.Show("You must enter the number of tires that the employee installed on Monday.",
"Awesome Tires",
MessageBoxButtons.OK, MessageBoxIcon.Information);
return 0.00;
}
int tires = 0;
try
{
tires = int.Parse(strNumberOfTires);
}
catch (FormatException fe)
{
MessageBox.Show("The number of tires installed for the day is not valid. " +
"The error produced is: " + fe.Message,
"Awesome Tires",
MessageBoxButtons.OK, MessageBoxIcon.Information);
}
double payBasedOnTires = double.Parse(txtBaseTireRate.Text) * tires;
double dailySalary = double.Parse(txtBaseHourlyRate.Text) * 8.00;
double pay = payBasedOnTires;
if(payBasedOnTires < dailySalary)
{
pay = dailySalary;
}
return pay;
}
private void CalculateTotal()
{
int tireMonday = 0, tireTuesday = 0, tireWednesday = 0, tireThursday = 0, tireFriday = 0;
double payMonday = 0d, payTuesday = 0d, payWednesday = 0d, payThursday = 0d, payFriday = 0d;
try { tireMonday = int.Parse(txtMondayTires.Text); } catch { }
try { tireTuesday = int.Parse(txtTuesdayTires.Text); } catch { }
try { tireWednesday = int.Parse(txtWednesdayTires.Text); } catch { }
try { tireThursday = int.Parse(txtThursdayTires.Text); } catch { }
try { tireFriday = int.Parse(txtFridayTires.Text); } catch { }
try { payMonday = double.Parse(txtMondayPay.Text); } catch { }
try { payTuesday = double.Parse(txtTuesdayPay.Text); } catch { }
try { payWednesday = double.Parse(txtWednesdayPay.Text); } catch { }
try { payThursday = double.Parse(txtThursdayPay.Text); } catch { }
try { payFriday = double.Parse(txtFridayPay.Text); } catch { }
int totalTires = tireMonday + tireTuesday + tireWednesday + tireThursday + tireFriday;
double totalPay = payMonday + payTuesday + payWednesday + payThursday + payFriday;
txtTotalTires.Text = totalTires.ToString();
txtTotalPay.Text = totalPay.ToString("n");
}
private void btnMonday_Click(object sender, EventArgs e)
{
double dMondayPay = EvaluatePay(txtBaseHourlyRate.Text, txtBaseTireRate.Text, txtMondayTires.Text);
txtMondayPay.Text = dMondayPay.ToString("n");
CalculateTotal();
}
private void btnTuesday_Click(object sender, EventArgs e)
{
double dTuesdayPay = EvaluatePay(txtBaseHourlyRate.Text, txtBaseTireRate.Text, txtTuesdayTires.Text);
txtTuesdayPay.Text = dTuesdayPay.ToString("n");
CalculateTotal();
}
private void btnWednesday_Click(object sender, EventArgs e)
{
double dWednesdayPay = EvaluatePay(txtBaseHourlyRate.Text, txtBaseTireRate.Text, txtWednesdayTires.Text);
txtWednesdayPay.Text = dWednesdayPay.ToString("n");
CalculateTotal();
}
private void btnThursday_Click(object sender, EventArgs e)
{
double dThursdayPay = EvaluatePay(txtBaseHourlyRate.Text, txtBaseTireRate.Text, txtThursdayTires.Text);
txtThursdayPay.Text = dThursdayPay.ToString("n");
CalculateTotal();
}
private void btnFriday_Click(object sender, EventArgs e)
{
double dFridayPay = EvaluatePay(txtBaseHourlyRate.Text, txtBaseTireRate.Text, txtFridayTires.Text);
txtFridayPay.Text = dFridayPay.ToString("n");
CalculateTotal();
}
private void btnSavePayroll_Click(object sender, EventArgs e)
{
Payroll payroll = new Payroll()
{
PayrollNumber = long.Parse(txtPayrollNumber.Text),
EmployeeNumber = mtbEmployeeNumber.Text,
Monday = (mtbMondayDate.Text, int.Parse(txtMondayTires.Text), double.Parse(txtMondayPay.Text)),
Tuesday = (mtbTuesdayDate.Text, int.Parse(txtTuesdayTires.Text), double.Parse(txtTuesdayPay.Text)),
Wednesday = (mtbWednesdayDate.Text, int.Parse(txtWednesdayTires.Text), double.Parse(txtWednesdayPay.Text)),
Thursday = (mtbThursdayDate.Text, int.Parse(txtThursdayTires.Text), double.Parse(txtThursdayPay.Text)),
Friday = (mtbFridayDate.Text, int.Parse(txtFridayTires.Text), double.Parse(txtFridayPay.Text)),
};
Repository.Payrolls.Add(payroll);
Close();
}
private void btnClose_Click(object sender, EventArgs e)
{
Close();
}
}
}
| Control | (Name) | Text | |
| Button | |
btnFindPayroll | &Find Payroll |
| Button | |
btnClose | &Close |
using AwesomeTires1.Models;
namespace AwesomeTires1.Payrolls
{
public partial class View : Form
{
public View()
{
InitializeComponent();
}
private void btnFindPayroll_Click(object sender, EventArgs e)
{
if (string.IsNullOrEmpty(txtPayrollNumber.Text))
{
MessageBox.Show("You must enter a payroll number.",
"Awesome Tires",
MessageBoxButtons.OK, MessageBoxIcon.Information);
return;
}
foreach (Payroll pay in Repository.Payrolls)
{
if (pay.PayrollNumber.Equals(long.Parse(txtPayrollNumber.Text)))
{
mtbEmployeeNumber.Text = pay.EmployeeNumber;
mtbMondayDate.Text = pay.Monday.date;
txtMondayTires.Text = pay.Monday.tires.ToString();
txtMondayPay.Text = pay.Monday.pay.ToString();
mtbTuesdayDate.Text = pay.Tuesday.date;
txtTuesdayTires.Text = pay.Tuesday.tires.ToString();
txtTuesdayPay.Text = pay.Tuesday.pay.ToString();
mtbWednesdayDate.Text = pay.Wednesday.date;
txtWednesdayTires.Text = pay.Wednesday.tires.ToString();
txtWednesdayPay.Text = pay.Wednesday.pay.ToString();
mtbThursdayDate.Text = pay.Thursday.date;
txtThursdayTires.Text = pay.Thursday.tires.ToString();
txtThursdayPay.Text = pay.Thursday.pay.ToString();
mtbFridayDate.Text = pay.Friday.date;
txtFridayTires.Text = pay.Friday.tires.ToString();
txtFridayPay.Text = pay.Friday.pay.ToString();
txtTotalTires.Text = pay.TotalTires.ToString();
txtTotalPay.Text = pay.TotalPay.ToString();
break;
}
}
foreach (Employee staff in Repository.Employees)
{
if (staff.EmployeeNumber.Equals(mtbEmployeeNumber.Text))
{
txtEmployeeName.Text = staff.EmployeeName;
txtBaseHourlyRate.Text = staff.BaseHourlyRate.ToString();
txtBaseTireRate.Text = staff.BaseTireRate.ToString();
break;
}
}
}
private void btnClose_Click(object sender, EventArgs e)
{
Close();
}
}
}
| Control | (Name) | Text | |
| Button | |
btnPreparePayroll | &Prepare Payroll... |
| Button | |
btnViewPayroll | &View Payroll... |
| Button | |
btnEmployees | &Employees... |
| Button | |
btnClose | &Close |
namespace AwesomeTires1
{
public partial class TiresInstallation : Form
{
public TiresInstallation()
{
InitializeComponent();
}
private void btnPreparePayroll_Click(object sender, EventArgs e)
{
Payrolls.Create create = new Payrolls.Create();
create.ShowDialog();
}
private void btnViewPayroll_Click(object sender, EventArgs e)
{
Payrolls.View view = new Payrolls.View();
view.Show();
}
private void btnEmployees_Click(object sender, EventArgs e)
{
Employees.ViewAll employees = new Employees.ViewAll();
employees.Show();
}
private void btnClose_Click(object sender, EventArgs e)
{
Close();
}
}
}
| Employee # | Employee Name | Base Hourly Rate | Base Tire Rate |
| 206-805 | David Flore | 14.26 | 1.08 |
| 935-069 | Mark Stanley Lochlear | 12.85 | 1.42 |
| 395-797 | Marguerite Ashley Norris | 15.05 | 0.97 |
| 139-579 | Ronaldo Franky Rodriguez | 15.86 | 1.32 |
| 503-580 | Thomas Wells | 13.88 | 1.62 |
| 759-742 | Annabella Hernadez | 16.41 | 0.86 |
Payroll #: 948575
Employee #: 395-797
Monday:
Work Date: 07/10/2023
# of Tires: 118
Tuesday:
Work Date: 07/11/2023
# of Tires: 46
Wednesday:
Work Date: 07/12/2023
# of Tires: 125
Thursday:
Work Date: 07/13/2023
# of Tires 52
Friday:
Work Date: 07/14/2023
# of Tires: 97
Payroll #: 297203
Employee #: 139-579
Monday:
Work Date: 07/17/2023
# of Tires: 97
Tuesday:
Work Date: 07/18/2023
# of Tires: 122
Wednesday:
Work Date: 07/19/2023
# of Tires: 131
Thursday:
Work Date: 07/20/2023
# of Tires 116
Friday:
Work Date: 07/21/2023
# of Tires: 126
A Text Editor
A text editor is a special version of a text box. While the classical text box is made for only one line of text, a text editor can handle many lines. When its content is long, a text editor can be equipped with scroll bars (at least vertical scroll bars) to make it possible for the user to navigate up and down within the text.
To start a text editor, declare a TextBox variable or add a TextBox control to a form. The most fundamental property that differentiates a classic text box and a text editor is Boolean and it is named Multiline:
public override bool Multiline { get; set; }
Although the Multiline Boolean property is the most important characteristic of a text editor, the control may need other functionalities, such as scroll bars available through a property named ScrollBars:
public System.Windows.Forms.ScrollBars ScrollBars { get; set; }
Of course, you can set this property visually in the Properties window or programmatically.
A Rich Text Box
A text box displays all its characters in only one font and all characters are painted in the same color. A rich text box can display some of its characters in one font and some other characters in other fonts. Also, some characters can be made to display in different colors.
To support rich text boxes, the .NET Framework provides a class named RichTextBox that is derived from TextBoxBase:
[System.Windows.Forms.Docking(System.Windows.Forms.DockingBehavior.Ask)] public class RichTextBox : System.Windows.Forms.TextBoxBase
Although both the TextBox and the RichTextBox have a common parent (the TextBoxBase), and the regular text box produces a text editor, the rich text box is an enahnced version of the text editor. Therefore, if you want a multi-line text editor that can handle colors and various types of fonts, declare a variable of type RichTextBox. To graphically create a rich text box, in the Toolbox, click the RichTextBox button and click a form. If you visually create a rich text box, you can partially configure it in the Properties window. Some of the behaviors, such as displaying some sections of the text in different colors or different fonts, can be handled only by writing code.
Practical Learning: Ending the Lesson
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