1 files changed, 33 insertions, 0 deletions
diff --git a/src/System.Private.CoreLib/shared/System/Collections/KeyValuePairs.cs b/src/System.Private.CoreLib/shared/System/Collections/KeyValuePairs.cs
new file mode 100644
index 000000000..9ec6365b9
--- /dev/null
+++ b/src/System.Private.CoreLib/shared/System/Collections/KeyValuePairs.cs
@@ -0,0 +1,33 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+// See the LICENSE file in the project root for more information.
+
+/*============================================================
+**
+** Class:  KeyValuePairs
+**
+** Purpose: Defines key/value pairs for displaying items
+**          in a collection class under the debugger.
+**
+===========================================================*/
+
+using System.Diagnostics;
+
+namespace System.Collections
+{
+    [DebuggerDisplay("{_value}", Name = "[{_key}]")]
+    internal class KeyValuePairs
+    {
+        [DebuggerBrowsable(DebuggerBrowsableState.Never)]
+        private readonly object _key;
+
+        [DebuggerBrowsable(DebuggerBrowsableState.Never)]
+        private readonly object _value;
+
+        public KeyValuePairs(object key, object value)
+        {
+            _value = value;
+            _key = key;
+        }
+    }
+}