1. Week 2: WINDOWS PROGRAMMING
Chapter 15 in “Beginning Visual C# 2010” ebook
Chapter 4 in “”MCTS_Self-Paced_Training_Kit” ebook

2. Week 2: WINDOWS PROGRAMMING
Working with Windows Forms

3. CONTROLS When you work with Windows Forms, you are working with the
System.Windows.Forms namespace
Most controls in .NET derive from the System.Windows.Forms.Control class
Many of these classes are themselves base classes for other controls, as is the case with the Label and TextBoxBase classes
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4. CONTROLS
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5. Properties Common Control Class Properties
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6. Properties Common Control Class Properties
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7. Adding Controls to a Windows Form
Adding Controls by Using the Windows Forms Designer
Adding Controls Programmatically
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8. Adding Controls Programmatically
1. Create a private variable to represent each of the controls you want to place on the form
2. In the form, place code to instantiate each control and to customize each control, using its properties, methods, or events.
3. Add each control to the forms control collection.
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9. Exam (page 113)
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10. Handling Control Events
Add controls to a Windows form.
Set properties on controls.
Load controls dynamically.
Write code to handle control events and add the code to a control.
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11. Handling Control Events_Ex
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12. HANDLING CONTROL EVENTS
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13. HANDLING CONTROL EVENTS
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14. COMMON WINDOWS FORMS CONTROLS
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15. Naming Rules Button-btn Label-lbl Form-frm
Always use standard names for objects
No spaces or punctuation marks
3 letter lowercase prefix identifies control type
Button-btn
Label-lbl
Form-frm
If multiple words capitalize 1st letter of each word
Each object name is an identifier
Can contain letters, digits, and underscores (_)
Cannot start with digits
Can start with the at symbol
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16. Recommended Naming Object Class Prefix Example Form frm frmDataEntry
Button btn btnExit
TextBox txt txtPaymentAmount
Label lbl lblTotal
Radio Button rad radBold
CheckBox chk chkPrintSummary
PictureBox pic picLandscape
ComboBox cbo cboBookList
ListBox lst lstIndegredients
GroupBox grb grbColor
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17. Windows Forms Windows Forms is the basic building block of the UI
It provides a container that hosts controls and menus and enables you to present an application in a familiar and consistent fashion
You can add and configure additional forms at design time, or you can create instances of predesigned forms in code at run time.
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18. Windows Forms Some Properties of the Form Class
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19. Windows Forms Some Properties of the Form Class
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20. Windows Forms Some Properties of the Form Class
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21. Setting the Title of the Form
To change the title of a form at run time, set the Text property of the form in code, as shown in the following code:
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22. Setting the Border Style of the Form
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23. Specifying the Startup Location of the Form
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24. Keeping a Form on Top of the User Interface
TopMost = True
FormBorderStyle = None;
StartPosition = CenterToScreen;
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25. Opacity and Transparency in Forms
The Opacity property to create striking visual effects in your form
Values between 0 percent and 100 percent
result in a partially transparent form
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26. Setting the Startup Form
1. In Solution Explorer, double-click Program.cs to view the code. The code window opens.
2. Locate the Main method and then locate the line that reads: Application.Run(new Form()); where Form represents the name of the form that is currently the startup form.
3. Change Form to the name of the form you want to set as the startup form.
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27. Control Properties and Layout
Common properties
Derive from class Control
Text property
Specifies the text that appears on a control
Focus method
Transfers the focus to a control
Becomes active control
Enable property
Indicate a control’s accessibility
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28. Control Properties and Layout
Visibility control
Hide control from user
Anchor property
Anchoring control to specific location (corner)
Unanchored control moves relative to the position
Docking allows control to spread itself along and entire side
Both options refer to the parent container
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29. Control Properties and Layout
Before resize
After resize
Constant distance to left and top sides
Fig Anchoring demonstration.
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30. Control Properties and Layout
Darkened bar indicates to which wall control is anchored
Click down-arrow in Anchor property to display anchoring window
Fig Manipulating the Anchor property of a control.
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31. Control Properties and Layout
Control expands along top portion of the form
Fig Docking demonstration.
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32. Control Properties and Layout
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33. Week 2: WINDOWS PROGRAMMING
Controls for displaying information to the user

34. Labels and LinkLabel controls
Labels : The standard Windows label
LinkLabel: A label similar to the standard one but that presents itself as an Internet link (a hyperlink)
You don’t need to add event handling code for a standard Label
Some extra code is needed to enable users clicking it to go to the target of the LinkLabel
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35. Common Label Control Properties
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36. Common Label Control Properties
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37. Week 2: WINDOWS PROGRAMMING
Controls that enable users of your application to enter text,

38. TextBoxes and RichTextBox
The .NET Framework comes with two basic controls to take text input from users:
TextBox and RichTextBox.
Both controls are derived from a base class called TextBoxBase, which itself is derived from Control.
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39. Common TextBox Control Properties
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40. Common TextBox Control Properties
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41. THE RICHTEXTBOX CONTROL
Like the normal TextBox, the RichTextBox control is derived from TextBoxBase
Whereas a TextBox is commonly used for the purpose of obtaining short text strings from the user
The RichTextBox is used to display and enter formatted text (e.g., bold, underline, and italic). It does so using a standard for formatted text called Rich Text Format, or RTF.
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42. Common RichTextBox Control Properties
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43. Common RichTextBox Control Properties
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44. Week 2: WINDOWS PROGRAMMING
Controls for displaying pictures

45. The PictureBox Control
The PictureBox control is the basic control used for displaying images in the user interface, and it can display pictures in a variety of formats, including .bmp, .jpg, .gif, metafiles, and icons.
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46. The PictureBox Control
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47. The PictureBox Control
At run time, you can set the Image property to an instance of an image, as shown in the following example:
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