Add project files.

Author: Enis Gürkan

EnLock.sln

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+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 17
+VisualStudioVersion = 17.0.31912.275
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "EnLock", "EnLock\EnLock.csproj", "{2AC7594B-6D50-447C-908E-AE74172E288C}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{2AC7594B-6D50-447C-908E-AE74172E288C}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{2AC7594B-6D50-447C-908E-AE74172E288C}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{2AC7594B-6D50-447C-908E-AE74172E288C}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{2AC7594B-6D50-447C-908E-AE74172E288C}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+		SolutionGuid = {3F64EC58-7DAA-4691-880D-6031A55ABF6C}
+	EndGlobalSection
+EndGlobal

EnLock/EnExtention.cs

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+using Microsoft.EntityFrameworkCore;
+using System.Collections.Generic;
+using System.Linq;
+using System.Threading;
+using System.Threading.Tasks;
+using System.Transactions;
+
+namespace EnLock
+{
+    public static class EnExtention
+    {
+        public static async Task<bool> ToAnyWithNoLockAsync<T>(this IQueryable<T> query, CancellationToken cancellationToken = default)
+        {
+            bool result = default;
+            using (var scope = new TransactionScope(TransactionScopeOption.Required,
+                                    new TransactionOptions()
+                                    {
+                                        IsolationLevel = System.Transactions.IsolationLevel.ReadUncommitted
+                                    },
+                                    TransactionScopeAsyncFlowOption.Enabled))
+            {
+                result = await query.AnyAsync(cancellationToken);
+                scope.Complete();
+            }
+            return result;
+        }
+        public static async Task<T[]> ToArrayWithNoLockAsync<T>(this IQueryable<T> query, CancellationToken cancellationToken = default)
+        {
+            T[] result = default;
+            using (var scope = new TransactionScope(TransactionScopeOption.Required,
+                                    new TransactionOptions()
+                                    {
+                                        IsolationLevel = System.Transactions.IsolationLevel.ReadUncommitted
+                                    },
+                                    TransactionScopeAsyncFlowOption.Enabled))
+            {
+                result = await query.ToArrayAsync(cancellationToken);
+                scope.Complete();
+            }
+            return result;
+        }
+        public static async Task<List<T>> ToListWithNoLockAsync<T>(this IQueryable<T> query, CancellationToken cancellationToken = default)
+        {
+            List<T> result = default;
+            using (var scope = new TransactionScope(TransactionScopeOption.Required,
+                                    new TransactionOptions()
+                                    {
+                                        IsolationLevel = System.Transactions.IsolationLevel.ReadUncommitted
+                                    },
+                                    TransactionScopeAsyncFlowOption.Enabled))
+            {
+                result = await query.ToListAsync(cancellationToken);
+                scope.Complete();
+            }
+            return result;
+        }
+        public static async Task<T> ToFirstOrDefaultWithNoLockAsync<T>(this IQueryable<T> query, CancellationToken cancellationToken = default)
+        {
+            T result = default;
+            using (var scope = new TransactionScope(TransactionScopeOption.Required,
+                                    new TransactionOptions()
+                                    {
+                                        IsolationLevel = System.Transactions.IsolationLevel.ReadUncommitted
+                                    },
+                                    TransactionScopeAsyncFlowOption.Enabled))
+            {
+                result = await query.FirstOrDefaultAsync(cancellationToken);
+                scope.Complete();
+            }
+            return result;
+        }
+        public static async Task<T> ToFirstWithNoLockAsync<T>(this IQueryable<T> query, CancellationToken cancellationToken = default)
+        {
+            T result = default;
+            using (var scope = new TransactionScope(TransactionScopeOption.Required,
+                                    new TransactionOptions()
+                                    {
+                                        IsolationLevel = System.Transactions.IsolationLevel.ReadUncommitted
+                                    },
+                                    TransactionScopeAsyncFlowOption.Enabled))
+            {
+                result = await query.FirstOrDefaultAsync(cancellationToken);
+                scope.Complete();
+            }
+            return result;
+        }
+        public static async Task<T> ToSingleWithNoLockAsync<T>(this IQueryable<T> query, CancellationToken cancellationToken = default)
+        {
+            T result = default;
+            using (var scope = new TransactionScope(TransactionScopeOption.Required,
+                                    new TransactionOptions()
+                                    {
+                                        IsolationLevel = System.Transactions.IsolationLevel.ReadUncommitted
+                                    },
+                                    TransactionScopeAsyncFlowOption.Enabled))
+            {
+                result = await query.SingleAsync(cancellationToken);
+                scope.Complete();
+            }
+            return result;
+        }
+    }
+}

EnLock/EnLock.csproj

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+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>netstandard2.1</TargetFramework>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Microsoft.EntityFrameworkCore" Version="3.0.1" />
+  </ItemGroup>
+
+</Project>