In the Team Explorer pane, click "Pending Changes":
Then on the Pending Changes pane, expand the dropdown under Included Changes and select "Show Solution Changes":
Solution
In the Team Explorer pane, click "Pending Changes":
Then on the Pending Changes pane, expand the dropdown under Included Changes and select "Show Solution Changes":
OTHER TIPS
Another method I've found for achieving the same result (filtering out pending changes that are not part of the solution I'm working on) is to create more, fine-grained TFS workspaces (as opposed to a single workspace that contains many unrelated solutions). Once you have more than one solution, the Pending Changes view will contain a drop-down that lets you pick which workspace to show changes for: