Thrown exception stopping application despite being in a try block - vb.net

Question

I have an async function that makes a call to an API, but sometimes there is bad data and I want an exception to be thrown to stop other subsequent procedures from having to run. The Async procedure looks like this:
public async Function getInfo(url as string) as task(of string)
Dim htpRes As HttpResponseMessage = Await url.GetAsync().ConfigureAwait(False)
Dim result = htpRes.Content.ReadAsStringAsync.Result
If result = "" Then
Throw New Exception("API Failed")
Else
Return result
End If
End Function
That function is called by a procedure that looks like this:
sub hitAllAPIs(apiList As List(Of String))
For each i In apiList
Try
Dim info As String = getInfo(i)
doOtherStuffWithInfo(info)
Catch ex As Exception
logError
End Try
Next
End sub
The desired behavior is for the forloop in 'hitAllAPIs' to keep running even if an exception is thrown within 'getInfo'. Instead, what happens is that the exception gets hit and stops the code from running, whether I'm in Debug mode or Release mode. If I'm not there to babysit it and hit 'continue' then the forloop will just stop and the program won't run anymore. Once I hit 'continue', btw, the 'Catch' will work and the error will be logged.
The issue is that I need this to all happen automatically and that's not happening. I can't just eliminate the exception and check the function for a null value, since this is a very simplified version of my code and the function is actually called all over the place. I know that I can change my exception settings to simply skip over all exceptions like this, but this is happening even in Release mode to code that has been deployed. I can't imagine that my debugging exceptions should have an effect on code deployed in Release mode. In any case, I'm hoping someone can help me understand why this exception isn't being automatically handled by the try block.
Thanks!

Answer 1

It seems result = "" is an expected result not an exception. Using Try/Catch is rather heavy handed. Exception handling is for unexpected results. Get rid of the Throw in the Function and add and If in the For Each.
Public Async Function getInfo(url As String) As Task(Of String)
Dim htpRes As HttpResponseMessage = Await url.GetAsync().ConfigureAwait(False)
Dim result = htpRes.Content.ReadAsStringAsync.Result
Return result
End Function
Sub hitAllAPIs(apiList As List(Of String))
For Each i In apiList
Dim info As String = getInfo(i)
If info = "" Then
'Add an overload of logError that accepts a string
logError("API failed")
Else
doOtherStuffWithInfo(info)
End If
Next
End Sub