Create ef-core-batch-delete-inmemory.md

Author: waqasm78

docs2/pages/ef-core-docs/documentations/batch-delete/scenarios/ef-core-batch-delete-inmemory.md

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+---
+Permalink: ef-core-batch-delete-inmemory
+---
+
+# EF Core InMemory
+
+### Problem
+
+You want to use **BatchDelete** with In Memory Testing for EF Core.
+
+### Solution
+
+Specify a DbContext factory in the **BatchDeleteManager** to enable BatchDelete with In Memory. A DbContext factory must be
+
+{% include template-example.html %} 
+```csharp
+
+// Options
+var db = new DbContextOptionsBuilder();
+db.UseInMemoryDatabase();
+
+// Specify InMemory DbContext Factory
+BatchDeleteManager.InMemoryDbContextFactory = () => new MyContext(db.Options);
+
+// Use the same code as with Relational Database
+var _context = new MyContext(db.Options);
+_context.Foos.Delete();
+
+```