Resharper structural search and replace Part II - Custom Quick Fixes

In Part I I covered finding usages with Resharper's 'Search with Pattern' feature.

Now lets turn our focus to replacing usages with our own snippets and creating our own custom quick fixes!

Consider this erroneous code sample you might encounter:

private void HandleMessage(object data)
{
    Address address = data as Address;//should just cast to Address here
    if(address.StreetName == "easy street")
    {
        //handle...
    }
}

Why erroneous you say? Well if you expect data to only ever be an Address then you should cast to it instead of using the as operator - That way at least you'll get an InvalidCastException instead of a NullPointerException.
sidenote1 there is obviously a time and place for the as operator I'm just giving an example of where a cast is more appropriate

We'll add a pattern that will replace:

Address address = data as Address;

with

var address = (Address)data;

This time open the Patterns Catalog, Resharper -> Options -> Code Inspection -> Custom Patterns

sidenote2 seems like a lot of trouble to go to for something that can be fixed fairly easily manually?? depends who you've let loose on your code and how many times you have to replace it