diff --git a/.gitignore b/.gitignore
index e3325d77..c2f1e5bd 100644
--- a/.gitignore
+++ b/.gitignore
@@ -43,3 +43,6 @@ Build/BinScopeOutDir/
 Build/BinScopeTargetDir/
 Scripts/
 
+/_ReSharper.Caches/*
+/.idea/*
+/.vs/*
diff --git a/src/RedisSessionStateProvider/RedisConnectionWrapper.cs b/src/RedisSessionStateProvider/RedisConnectionWrapper.cs
index f26f83fa..5ed96592 100644
--- a/src/RedisSessionStateProvider/RedisConnectionWrapper.cs
+++ b/src/RedisSessionStateProvider/RedisConnectionWrapper.cs
@@ -111,8 +111,15 @@ private bool SetPrepare(ISessionStateItemCollection data, int sessionTimeout, ou
             valueArgs = null;
             if (data != null && data.Count > 0)
             {
-                ChangeTrackingSessionStateItemCollection sessionItems = (ChangeTrackingSessionStateItemCollection)data;
-                List<object> list = redisUtility.GetNewItemsAsList(sessionItems);
+                List<object> list;
+                if (data is ChangeTrackingSessionStateItemCollection sessionItems)
+                {
+                   list = redisUtility.GetNewItemsAsList(sessionItems);                   
+                }
+                else
+                {
+                    list = redisUtility.GetAllItemsAsList(data);
+                }
                 if (list.Count > 0)
                 {
                     keyArgs = new string[] { Keys.DataKey, Keys.InternalKey };
diff --git a/src/Shared/RedisUtility.cs b/src/Shared/RedisUtility.cs
index 243e261c..b94d6375 100644
--- a/src/Shared/RedisUtility.cs
+++ b/src/Shared/RedisUtility.cs
@@ -5,6 +5,7 @@
 
 using System;
 using System.Collections.Generic;
+using System.Web.SessionState;
 
 namespace Microsoft.Web.Redis
 {
@@ -73,6 +74,17 @@ public List<object> GetNewItemsAsList(ChangeTrackingSessionStateItemCollection s
             return list;
         }
 
+        public List<object> GetAllItemsAsList(ISessionStateItemCollection sessionItems)
+        {
+            List<object> list = new List<object>(sessionItems.Keys.Count * 2);
+            foreach (string key in sessionItems.Keys)
+            {
+                list.Add(key);
+                list.Add(GetBytesFromObject(sessionItems[key]));
+            }
+            return list;
+        }
+
         internal byte[] GetBytesFromObject(object data)
         {
             return _serializer.Serialize(data);
diff --git a/test/RedisSessionStateProviderFunctionalTests/RedisSessionStateProviderFunctionalTests.cs b/test/RedisSessionStateProviderFunctionalTests/RedisSessionStateProviderFunctionalTests.cs
index ec0476f1..0822ebb4 100644
--- a/test/RedisSessionStateProviderFunctionalTests/RedisSessionStateProviderFunctionalTests.cs
+++ b/test/RedisSessionStateProviderFunctionalTests/RedisSessionStateProviderFunctionalTests.cs
@@ -9,6 +9,8 @@
 using System.Threading.Tasks;
 using Xunit;
 using System.Threading;
+using System.Web;
+using System.Web.SessionState;
 using Microsoft.AspNet.SessionState;
 
 namespace Microsoft.Web.Redis.FunctionalTests
@@ -148,6 +150,20 @@ public async Task ReleaseItemExclusiveWithNullLockId()
                 DisposeRedisConnectionWrapper();
             }
         }
+        
+        [Fact]
+        public async Task SetAndReleaseItemExclusiveWithSessionStateItemCollection()
+        {
+            using (RedisServer redisServer = new RedisServer())
+            {
+                string sessionId = ResetRedisConnectionWrapperAndConfiguration();
+                RedisSessionStateProvider ssp = new RedisSessionStateProvider();
+                var item = new SessionStateStoreData(new SessionStateItemCollection(), new HttpStaticObjectsCollection(), 1);
+                item.Items["testKey"] = "test data";
+                await ssp.SetAndReleaseItemExclusiveAsync(null, sessionId, item, null, true, CancellationToken.None);
+                DisposeRedisConnectionWrapper();
+            }
+        }
 
         [Fact]
         public async Task RemoveItemWithNullLockId()