Working with User Input

1
Working with User Input

• Business 92
• Spring 2008
• Roldan

2
Scheduling Notes

• Midterm review next week
• Midterm in 2 weeks (March 18)
• Save the Date MIS ExperienceFriday, April 18
  3pm to 6pm

3
Event Procedures

• Create event Procedures by
• Double-clicking on the relevant control
• Selecting the class and method names from the
  listboxes at the top of the code window
• Type in the relevant code or use code-snippets to
  start

Method
Control/Class
4
Working with other types of events

• The Form_Load event is a good event to associate
  with the baseline look of your form
• Code anatomy
• Button1.Enabled False
• Label1.Hide()

5
Combining events data retrieval in one form
6
Retrieving Data from Controls

• A new event Button1_MouseHover
• See page 136 for a table of Controls store
  control information, the property that you use to
  access the information and the type of data
  stored
• Conditional Statements like IfThen.Elseif.End
  help you use the informations to control how your
  application behaves
• Code Anatomy
• If CheckBox1.Checked And Not CheckBox2.Checked
  Then
• Label1.Text TextBox1.Text
• ElseIf CheckBox2.Checked Then
• Label1.Text "Please click Here"
• ElseIf CheckBox1.Checked And CheckBox2.Checked
  Then
• Label1.Text "Please click Here"
• End If
• Label1.Show()

7
Nice to have

• New event Button1_MouseLeave
• Code Anatomy Label1.Hide()

No Label whenmouse is not hovering over Button 1
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Complete Code
9
Pull-Down Menus

• Use the Menustrip control in the Menus Toolbars
  category of the toolbar to add a menu to your
  application
• Type menu items in the areas marked Type Here
• Double-click on a menu item to associate code
  with it

10
Toolstrips

• Use the ToolStrip control located in the Menus
  Toolbars category of the Toolbox
• Click on the Add ToolStrip button to select tools
  to add from the pop up menu
• Double-click on a toolstrip tool to associate
  code with it

11
List Boxes

• Listboxes allow users to select from a list of
  options
• Use the selection mode to control how many items
  a user can select at one time
• One allows only one item to be selected
• Multisimple allows several items to be selected
  at once
• Multiextended allows several items to be selected
  at once and activates the arrow, Ctrl and Shift
  keys to aid users with selections

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Code Anatomy
13
LinkLabels
LabelControl
LinkLabelControl
14
In Class Work

• Complete the survey found at http//www.zoomerang
  .com/survey.zgi?pWEB227GZHQKQ2T
• Do the tutorials on pages 133, 136, 151, 157,
  166, and 181
• Add the following to your application
• A pull down menu or toolstrip
• Code for an event other than a button-click
• A procedure that uses data retrieved from a
  control
• Important! Build the executable for your
  application and tutorials and place them in a
  folder named mar4