Session 7: ASP.NET Scripting and Control Structures

1
Session 7ASP.NET Scripting and Control
Structures
2
Event Handling with Common Web Server Controls
3
Defining Variables

• Strongly typed
• Numeric manipulation follows rules of basic math
• String manipulation has various functions,
  including
• Concatenation
• SubString
• ToUpper, ToLower

4
Common Data Types

• Integer
• Decimal
• String
• Boolean
• Date
• Object

5
Date Manipulation

• ASP.NET has extensive date and calendar functions
  
• Date
• Now, Day, Week, Month, Year
• AddDays, AddWeeks, AddMonths, AddYears
• ToShortTimeString, ToLongDateString
• Calendar
• FirstDayofWeek, SelectedDate, SelectedDates
• SelectionMode, TodaysDate

6
Conditional Logic (1)

• IF ... THEN ELSE
• IF empSal gt 100000 THEN
• greetLabel.Text Suggested United Way donation
  is 4 of your salary"
• ELSE
• greetLabel.Text Suggested United Way donation
  is 2 of your salary"
• END IF

7
Conditional Logic (2)

• SELECT CASE
• SELECT CASE intMonth
• CASE 1
• monthLabel.Text "Welcome to January"
• CASE 2
• monthLabel.Text "Welcome to February"
• CASE 3
• monthLabel.Text "Welcome to March"
• END SELECT

8
Looping Logic (1)

• DO WHILE LOOP
• DO WHILE intDay lt 31
• cheerLabel.Text "Go Sooners! ltHRgt"
• intDay intDay 1
• LOOP

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Looping Logic (2)

• DO UNTIL LOOP
• DO UNTIL intDay gt 31
• cheerLabel.Text "Go Sooner! ltHRgt"
• intDay intDay 1
• LOOP

10
Looping Logic (3)

• FOR ... NEXT LOOP
• FOR intCounter 1 to 10
• cheerLabel.Text intCounter " . Go Sooners!
  ltHRgt"
• NEXT