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Re: catching multiple errors

At 11:15 AM -0700 6/23/06, Michelle Steiner wrote: 
On Jun 23, 2006, at 10:55 AM, Jeremy Matthews wrote:

Does anyone have an example of applescript syntax for catching multiple errors?

For example, catch errors if people chose to cancel, or if a file wasn't there, or the preference was changed, etc... 

Nested if-then statements within a try block.

try
	display dialog "enter the file name" default answer "text.txt"
on error msg number num
	if num is -1 then
		--do something
	else if num is 25 then
		--do something else
	else if num is -128 then
		--do yet another thing
	end if
end try

Now, you've got to find out what error numbers you're interested in. To that effect, willingly trigger the error and have the "try ... on error" structure display its number:

try
	alias "Macintosh HD:the:file:doesn't:exist"
on error number n
	display dialog "error number " & n -- will be -43, "File not found"
end

Emmanuel
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 >catching multiple errors (From: Jeremy Matthews <email@hidden>)
 >Re: catching multiple errors (From: Michelle Steiner <email@hidden>)



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