Fix for 41854 (dotnet#41875)

samwherever · web-flow · commit 5a2cf3242b84 · 2024-07-24T15:45:16.000Z
diff --git a/docs/csharp/linq/standard-query-operators/snippets/standard-query-operators/LeftOuterJoins.cs b/docs/csharp/linq/standard-query-operators/snippets/standard-query-operators/LeftOuterJoins.cs
@@ -38,7 +38,7 @@ private static void LeftOuterJoinMethodSyntax()
         // <LeftOuterJoinMethod>
         var query = students.GroupJoin(departments, student => student.DepartmentID, department => department.ID,
             (student, departmentList) => new { student, subgroup = departmentList.AsQueryable() })
-            .SelectMany(joinedSet => joinedSet.subgroup, (student, department) => new
+            .SelectMany(joinedSet => joinedSet.subgroup.DefaultIfEmpty(), (student, department) => new
             {
                 student.student.FirstName,
                 student.student.LastName,

Original file line number	Diff line number	Diff line change
`@@ -38,7 +38,7 @@ private static void LeftOuterJoinMethodSyntax()`
`38`	`38`	`// <LeftOuterJoinMethod>`
`39`	`39`	`var query = students.GroupJoin(departments, student => student.DepartmentID, department => department.ID,`
`40`	`40`	`(student, departmentList) => new { student, subgroup = departmentList.AsQueryable() })`
`41`		`- .SelectMany(joinedSet => joinedSet.subgroup, (student, department) => new`
	`41`	`+ .SelectMany(joinedSet => joinedSet.subgroup.DefaultIfEmpty(), (student, department) => new`
`42`	`42`	`{`
`43`	`43`	`student.student.FirstName,`
`44`	`44`	`student.student.LastName,`