Calling "Count()" on result enumeration causes "First()" to fail

[mike-marshall]

for the Google provider (Not sure about the others), if I call "Count()" on the resulting Address collection then "First()" claims there are none in the collection, even though "Count()" returns 1. Feels like Count() is unnecessarily moving and internal iterator

[kingmotley]

That is true of all IEnumerables. I believe you can call .Count (Note no parenthesis -- which uses the IEnumerables property Count rather than the LINQ Count() function which will iterate it then count the results) and it won't iterate, or you can call .ToList() on what is returned if you want to be able to iterate it multiple times.

[mausch]

@kingmotley IEnumerable doesn't have any Count property. See http://msdn.microsoft.com/en-us/library/9eekhta0.aspx

[kingmotley]

You are correct. It would only have the count property if it also implemented the ICollection interface. So if you want to enumerate it multiple times, call .ToList() on what is returned, then count and iterate that instead.