User Tips: Creating an IIF Function for VBScript
By Brian O.
I recently noticed that there was no IIf function in VBScript, meaning I
can't use IIf when creating ASP pages.
When working with VB I've sometimes found the IIf function quite handy
to use. For those who don't know, the IIf function takes three parameters:
String = IIf(BooleanExpression, TrueString, FalseString)
|
The semantics of the IIf function are as follows: if BooleanExpression
is True, the IIf function returns the TrueString, else
the IIf function returns the False string. This function
is handy for a number of common ASP tasks. For example, if you are updating a URL database
field and you want to insert "None" if the user doesn't submit a URL through a form, you could
use the IIf function like so:
objRS("URL") = iif(Len(Request.Form("URL")) > 0, Request.Form("URL"), "None")
|
Since VBScript doesn't contain an IIf function, I decided to write my own.
You will need to include this function in any ASP pages that you need to use the
IIf function (or you can use a server-side
include to import this function into all of the ASP pages that need to utilize it).
function iif(psdStr, trueStr, falseStr)
if psdStr then
iif = trueStr
else
iif = falseStr
end if
end function
|
Pretty simple, eh? Hope this is of use to somebody :)
Happy Programming!
