Programming Reactive Extensions and LINQ

Example: Programming Asynchronous Interactions With Rx

We're going to build a small program called BingImageSearchDemo to demonstrate how FromAsyncPattern can be used in a practical application.

BingImageSearchDemo allows a user to type a phrase into the search box with the results displaying matching images from Bing, as shown in Figure 4-1. The images are retrieved asynchronously and placed into an observable collection.

Figure 4-1. The sample program BingImageSearchDemo at work

To create BingImageSearchDemo, we'll need to establish a connection to the Bing Search Engine and we'll need to handle the asynchronous operation of searching and ...