Index: clang/lib/Format/WhitespaceManager.h
===================================================================
--- clang/lib/Format/WhitespaceManager.h
+++ clang/lib/Format/WhitespaceManager.h
@@ -174,6 +174,9 @@
   /// \brief Align consecutive C/C++ preprocessor macros over all \c Changes.
   void alignConsecutiveMacros();
 
+  /// TODO(jbcoe)
+  void alignChainedCSharpMethodInvocations();
+
   /// Align consecutive assignments over all \c Changes.
   void alignConsecutiveAssignments();
 
Index: clang/lib/Format/WhitespaceManager.cpp
===================================================================
--- clang/lib/Format/WhitespaceManager.cpp
+++ clang/lib/Format/WhitespaceManager.cpp
@@ -92,6 +92,7 @@
   llvm::sort(Changes, Change::IsBeforeInFile(SourceMgr));
   calculateLineBreakInformation();
   alignConsecutiveMacros();
+  alignChainedCSharpMethodInvocations();
   alignConsecutiveDeclarations();
   alignConsecutiveAssignments();
   alignTrailingComments();
@@ -553,6 +554,15 @@
                      FoundMatchOnLine, AlignMacrosMatches, Changes);
 }
 
+void WhitespaceManager::alignChainedCSharpMethodInvocations() {
+  if (!Style.isCSharp())
+    return;
+
+  AlignTokens(
+      Style, [&](const Change &C) { return C.Tok->is(tok::period); }, Changes,
+      /*StartAt=*/0);
+}
+
 void WhitespaceManager::alignConsecutiveAssignments() {
   if (!Style.AlignConsecutiveAssignments)
     return;
Index: clang/unittests/Format/FormatTestCSharp.cpp
===================================================================
--- clang/unittests/Format/FormatTestCSharp.cpp
+++ clang/unittests/Format/FormatTestCSharp.cpp
@@ -554,5 +554,21 @@
                Style);
 }
 
+TEST_F(FormatTestCSharp, CSharpChainedMethodInvocations) {
+  FormatStyle Style = getGoogleStyle(FormatStyle::LK_CSharp);
+
+  verifyFormat(R"(//
+var processed = someNumbers.Select(number => number * 2)
+                           .Where(number => number != 6)
+                           .OrderBy(number => number);)",
+               Style);
+
+  // See if additional .'s cause issues.
+  verifyFormat(R"(//
+var processed = someValues.someNumbers.Select(number => number.value * 2)
+                                      .Where(number => number.value != 6)
+                                      .OrderBy(number => number.value);)",
+               Style);
+}
 } // namespace format
 } // end namespace clang