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Programming in C#Programming in C#
●● Project 1:Project 1:Set the text in the Form’s title bar.Change the Form’s background color.Place a Label control on the Form.Display text in a Label control.Place a PictureBox control on the Form.
Display an image in a PictureBox control.Run an application.
TestTest--Driving the Driving the WelcomeWelcomeApplicationApplication
Welcome application running.Close box
Constructing the Welcome ApplicationConstructing the Welcome Application
● Changing the Form’s file nameLocate the Solution ExplorerSelect the fileChange the File Name property
Constructing the Constructing the WelcomeWelcome ApplicationApplication
Blank Form.
Toolbar
Form title bar
Form file name
IDE title bar Solution Explorer window
Solution name
Project name
Blank Form
Constructing the Constructing the WelcomeWelcome ApplicationApplication
Changing the Form’s file name.
File properties
New file name
New property value
Selected property description
Selected property
Constructing the Constructing the WelcomeWelcome ApplicationApplication
● Changing the Form’s title displayLocate Solution ExplorerSelect the Text propertyChange the text
Setting the Form’s Text property.
Selected property description
Selected property Property value
Constructing the Constructing the WelcomeWelcome ApplicationApplication
● Title bar changes to display Form’s Text property
Title bar for the Welcome application.
Title bar
Constructing the Constructing the WelcomeWelcome ApplicationApplication
Form with sizing handles.
Grid
Height
Disabled sizing handle
Mouse pointer over an enabled sizing handle
Enabled sizing handle
Width
Constructing the Constructing the WelcomeWelcome ApplicationApplication
● Resizing the Form
Expand the Size propertyChange the WidthChange the Height
Size property values for the Form.
Size property values
Constructing the Constructing the WelcomeWelcome ApplicationApplication
● Changing the Form’s background colorLocate the BackColor property
System tab (default)Web tabCustom tab
Constructing the Constructing the WelcomeWelcome ApplicationApplication
Viewing the Custom palette in the Form’s BackColor property value field.
Tabs
Custom colors can be added to the white boxes
Custom palette
Down-arrow ButtonCurrent color
Constructing the Constructing the WelcomeWelcome ApplicationApplication
● Custom tab paletteDefine Color dialog
Create your own colorsRGB values
Constructing the Constructing the WelcomeWelcome ApplicationApplication
Adding a color to the Custom palette.
Blue component (169)
Green component (237)
Color preview Red component (255)
Adds a color to Custom palette
Constructing the Constructing the WelcomeWelcome ApplicationApplication
● ToolboxWindows Forms tab
Clicking the Windows Forms tab in the Toolbox.
Windows Forms tab
Label control
Constructing the Constructing the WelcomeWelcome ApplicationApplication
● Label added to Form
Adding a Label to the Form.
New background color
Sizing handle (enabled)Label control
Constructing the Constructing the WelcomeWelcome ApplicationApplication
● Adding text to the Label
Label’s content changes to reflect new Text value
Label after updating its Text property.
Updated Text property value too large for Label
Constructing the Constructing the WelcomeWelcome ApplicationApplication
● Resizing the Label
Text re-aligns to fit new Label size
Label after it has been resized.
Label resized vertically and horizontally
Constructing the Constructing the WelcomeWelcome ApplicationApplication
● Moving the Label on the Form
Centered Label.
Centered Label
Constructing the Constructing the WelcomeWelcome ApplicationApplication
● Changing the fontLocate Solution ExplorerSelect the Label
Select Font property
Properties window displaying the Label’s properties.
Ellipsis Button
Constructing the Constructing the WelcomeWelcome ApplicationApplication
● Font dialogChange text by changing values in dialogs
Constructing the Constructing the WelcomeWelcome ApplicationApplication
Font dialog for selecting fonts, styles and sizes.
Current font
Font dialog
Font sample
Constructing the Constructing the WelcomeWelcome ApplicationApplication
● Text alignmentAccess TextAlign propertySelect appropriate option
Constructing the Constructing the WelcomeWelcome ApplicationApplication
Centering the Label’s text.
Top-center alignment option
Text alignment options
Constructing the Constructing the WelcomeWelcome ApplicationApplication
● Inserting a pictureSelect the PictureBox control
Drop control onto Form
Constructing the Constructing the WelcomeWelcome ApplicationApplication
Inserting and aligning the PictureBox.
Updated Label
PictureBox
Constructing the Constructing the WelcomeWelcome ApplicationApplication
● Changing PictureBox propertiesLocate Solution ExplorerLocate Image property
Image property of the PictureBox.
Image property value (no image selected)
Ellipsis Button
Image preview box (no image currently displayed)
Constructing the Constructing the WelcomeWelcome ApplicationApplication
● Selecting the pictureNavigate the Open dialog to the picture locationClick Open
Constructing the Constructing the WelcomeWelcome ApplicationApplication
Open dialog used to browse for a PictureBox image.
bug.png file (may display bugdepending on your settings)
Constructing the Constructing the WelcomeWelcome ApplicationApplication
● Resizing the imageChange property SizeMode
StretchImage scales image in PictureBox
Change property Size
Newly inserted image.
PictureBox too small for image
Constructing the Constructing the WelcomeWelcome ApplicationApplication
● Previewed image in Image property
Image previewed in the Image property value field.
Previewed image
Constructing the Constructing the WelcomeWelcome ApplicationApplication
● Align the imageFormat > Center in Form > Horizontally
Constructing the Constructing the WelcomeWelcome ApplicationApplication
PictureBox displaying an image.
Newly inserted image
Constructing the Constructing the WelcomeWelcome ApplicationApplication
● Locking the controlsDisallow accidental resizing and relocation of controls
Locking controls by using the Format menu.
Lock Controls option
Constructing the Constructing the WelcomeWelcome ApplicationApplication
● Running the applicationTitle bar indicates the current application modeDebug > Start
● Closing the running applicationClick the application’s close box
Constructing the Constructing the WelcomeWelcome ApplicationApplication
IDE in run mode, with the application running in the foreground.
IDE title bar displaying [run]
Form (with grid)
Running application
Objects used in the Objects used in the WelcomeWelcomeApplicationApplication
● ComboBox
Located at top of Properties windowDisplays the names and class types of Form and control objects
Component object box expanded to show the Welcome application’s objects.
Welcomeapplication GUI objects
Objects used in the Objects used in the WelcomeWelcomeApplicationApplication
● NamespacesOrganizes classes by functionality Directory-like entitiesSystem.Windows.Forms
The name and class type of an object are displayed in theProperties window’s component object box.
Name of object (Form1) Namespace (System.Windows.Forms)
Class type of object (Form)
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