Using select case instead of if-then-else
When choosing between many items it is more efficient to use the
select case construct. The following example repeats the registration
form but uses Select Case instead of if-then-else for it's decision
making.
SelectOneForm.asp
<html>
<head>
<title> Baseball field</title>
</head>
<body>
<h1>BaseBall Information</h1>
<h3>To get the logistics information for your game please answer
two questions:</h3>
<form action="SelectAction.asp" method="post">
Please choose your preference in month, either March or April:<br>
<input type="text" Name="monthpref"><p>
Please input your preference in location, either East or West<br>
<input type="text" name="location">
<br>
<input type="submit"><input type="reset">
</form>
</body></html>
SelectAction.asp
<html>
<head>
<title> Baseball field schedule</title>
</head>
<body>
<%
varMonthPref=Request.form("MonthPref")
varLocation=Request.Form("location")
Response.write "<h1> Base ball game </h1>"
select case varMonthPref
case "march"
Response.write "Your meeting will be held on march 15th"
case "March"
Response.write "Your meeting will be held on march 15th"
Case "april"
Response.write "Your meeting will be held on april 16th"
case "April"
Response.write "Your meeting will be held on april 16th"
end select
if varLocation="East" then
response.write "in White Hall, New Mexico"
else
response.write "In Pullman, Idaho"
end if
%>
</body>
</html>
How it works:
The month preferred is saved in variable varMonthPref. Processing
is as following in the Select Case statement:
1. The contents of varMonthPref is first compared with "march",
if they are equal then the next statement is executed which prints
out: Your meeting will be held on march 15th. Execution then continues
with the if statement following the End Select
2. Otherwise the contents of varMonthPref is compared with "March" and
similar processing is performed as above
3. If varMonthPref is not equal to any of the cases, then nothing
is printed and execution continues after the end case.
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