Merge pull request #483 from MarkMpn/v9-fixes

V9 fixes
+semver:minor

AzureDataStudioExtension/CHANGELOG.md

@@ -1,5 +1,23 @@
 # Change Log
 
+## [v9.1.0](https://github.com/MarkMpn/Sql4Cds/releases/tag/v9.1.0) - 2024-06-10
+
+Enabled access to recycle bin records via the `bin` schema
+Enabled `INSERT`, `UPDATE` and `DELETE` statements on `principalobjectaccess` table
+Enabled use of subqueries within `ON` clause of `JOIN` statements
+Added support for `___pid` virtual column for lookups to elastic tables
+Improved folding of queries using index spools
+Improved primary key calculation when using joins on non-key columns
+Apply column order setting to parameters for stored procedures and table-valued functions
+Fixed error with DeleteMultiple requests
+Fixed paging error with `DISTINCT` queries causing results to be limited to 50,000 records
+Fixed paging errors when sorting by optionset values causing some results to be skipped
+Fixed errors when using joins inside `[NOT] EXISTS` subqueries
+Fixed incorrect results when applying aliases to `___name` and `___type` virtual columns
+Fixed max length calculation for string columns
+Fixed display of error messages
+Fixed "invalid program" errors when combining type conversions with `AND` or `OR`
+
 ## [v9.0.1](https://github.com/MarkMpn/Sql4Cds/releases/tag/v9.0.1) - 2024-05-08
 
 Fixed `NullReferenceException` errors when:

MarkMpn.Sql4Cds.DebugVisualizer.DebugeeSide/ExecutionPlanObjectSource.cs

@@ -0,0 +1,35 @@
+using System.Text;
+using MarkMpn.Sql4Cds.Engine;
+using MarkMpn.Sql4Cds.Engine.ExecutionPlan;
+using Microsoft.VisualStudio.DebuggerVisualizers;
+
+namespace MarkMpn.Sql4Cds.DebugVisualizer.DebugeeSide
+{
+    public class ExecutionPlanObjectSource : VisualizerObjectSource
+    {
+        public override void GetData(object target, Stream outgoingData)
+        {
+            if (target is IRootExecutionPlanNode root)
+            {
+                WritePlan(outgoingData, root);
+            }
+            else if (target is IExecutionPlanNode node)
+            {
+                WritePlan(outgoingData, new UnknownRootNode { Source = node });
+            }
+            else if (target is Sql4CdsCommand cmd)
+            {
+                if (cmd.Plan != null)
+                    WritePlan(outgoingData, cmd.Plan.First());
+                else
+                    WritePlan(outgoingData, cmd.GeneratePlan(false).First());
+            }
+        }
+
+        private void WritePlan(Stream outgoingData, IRootExecutionPlanNode source)
+        {
+            var json = ExecutionPlanSerializer.Serialize(source);
+            SerializeAsJson(outgoingData, new SerializedPlan { Plan = json });
+        }
+    }
+}

MarkMpn.Sql4Cds.DebugVisualizer.DebugeeSide/MarkMpn.Sql4Cds.DebugVisualizer.DebugeeSide.csproj

@@ -0,0 +1,19 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFrameworks>net6.0;net462</TargetFrameworks>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+    <LangVersion>latest</LangVersion>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Microsoft.VisualStudio.DebuggerVisualizers" Version="17.6.1032901" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\MarkMpn.Sql4Cds.Engine.NetCore\MarkMpn.Sql4Cds.Engine.NetCore.csproj" Condition="'$(TargetFramework)' == 'net6.0'" />
+    <ProjectReference Include="..\MarkMpn.Sql4Cds.Engine.NetFx\MarkMpn.Sql4Cds.Engine.NetFx.csproj" Condition="'$(TargetFramework)' == 'net462'" />
+  </ItemGroup>
+
+</Project>

MarkMpn.Sql4Cds.DebugVisualizer.DebugeeSide/SerializedPlan.cs

@@ -0,0 +1,13 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace MarkMpn.Sql4Cds.DebugVisualizer.DebugeeSide
+{
+    public class SerializedPlan
+    {
+        public string Plan { get; set; }
+    }
+}

MarkMpn.Sql4Cds.DebugVisualizer.DebugeeSide/UnknownRootNode.cs

@@ -0,0 +1,35 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using MarkMpn.Sql4Cds.Engine.ExecutionPlan;
+
+namespace MarkMpn.Sql4Cds.DebugVisualizer.DebugeeSide
+{
+    internal class UnknownRootNode : IRootExecutionPlanNode
+    {
+        public string Sql { get; set; }
+        public int Index { get; set; }
+        public int Length { get; set; }
+        public int LineNumber { get; set; }
+
+        public IExecutionPlanNode Parent => null;
+
+        public int ExecutionCount => 0;
+
+        public TimeSpan Duration => TimeSpan.Zero;
+
+        public IExecutionPlanNode Source { get; set; }
+
+        public IEnumerable<IExecutionPlanNode> GetSources()
+        {
+            yield return Source;
+        }
+
+        public override string ToString()
+        {
+            return "< Unknown Root >";
+        }
+    }
+}

MarkMpn.Sql4Cds.DebugVisualizer.DebuggerSide/.vsextension/string-resources.json

@@ -0,0 +1,3 @@
+{
+  "MarkMpn.Sql4Cds.DebugVisualizer.DisplayName": "SQL 4 CDS Visualizer"
+}

MarkMpn.Sql4Cds.DebugVisualizer.DebuggerSide/ExecutionPlanDebuggerVisualizerProvider.cs

@@ -0,0 +1,87 @@
+using System.Diagnostics;
+using MarkMpn.Sql4Cds.Engine;
+using Microsoft;
+using Microsoft.VisualStudio.Extensibility;
+using Microsoft.VisualStudio.Extensibility.Commands;
+using Microsoft.VisualStudio.Extensibility.DebuggerVisualizers;
+using Microsoft.VisualStudio.Extensibility.Shell;
+using Microsoft.VisualStudio.Extensibility.VSSdkCompatibility;
+using Microsoft.VisualStudio.RpcContracts.RemoteUI;
+using Microsoft.VisualStudio.Shell;
+
+namespace MarkMpn.Sql4Cds.DebugVisualizer.DebuggerSide
+{
+    /// <summary>
+    /// Debugger visualizer provider for <see cref="IRootExecutionPlanNode"/>.
+    /// </summary>
+    [VisualStudioContribution]
+    internal class ExecutionPlanDebuggerVisualizerProvider : DebuggerVisualizerProvider
+    {
+        private const string DisplayName = "MarkMpn.Sql4Cds.DebugVisualizer.DisplayName";
+
+        public override DebuggerVisualizerProviderConfiguration DebuggerVisualizerProviderConfiguration => new(
+            new VisualizerTargetType($"%{DisplayName}%", "MarkMpn.Sql4Cds.Engine.ExecutionPlan.AdaptiveIndexSpoolNode, MarkMpn.Sql4Cds.Engine, Version=0.0.0.0, Culture=neutral"),
+            new VisualizerTargetType($"%{DisplayName}%", "MarkMpn.Sql4Cds.Engine.ExecutionPlan.AliasNode, MarkMpn.Sql4Cds.Engine, Version=0.0.0.0, Culture=neutral"),
+            new VisualizerTargetType($"%{DisplayName}%", "MarkMpn.Sql4Cds.Engine.ExecutionPlan.AssertNode, MarkMpn.Sql4Cds.Engine, Version=0.0.0.0, Culture=neutral"),
+            new VisualizerTargetType($"%{DisplayName}%", "MarkMpn.Sql4Cds.Engine.ExecutionPlan.AssignVariablesNode, MarkMpn.Sql4Cds.Engine, Version=0.0.0.0, Culture=neutral"),
+            new VisualizerTargetType($"%{DisplayName}%", "MarkMpn.Sql4Cds.Engine.ExecutionPlan.BulkDeleteJobNode, MarkMpn.Sql4Cds.Engine, Version=0.0.0.0, Culture=neutral"),
+            new VisualizerTargetType($"%{DisplayName}%", "MarkMpn.Sql4Cds.Engine.ExecutionPlan.ComputeScalarNode, MarkMpn.Sql4Cds.Engine, Version=0.0.0.0, Culture=neutral"),
+            new VisualizerTargetType($"%{DisplayName}%", "MarkMpn.Sql4Cds.Engine.ExecutionPlan.ConcatenateNode, MarkMpn.Sql4Cds.Engine, Version=0.0.0.0, Culture=neutral"),
+            new VisualizerTargetType($"%{DisplayName}%", "MarkMpn.Sql4Cds.Engine.ExecutionPlan.ConditionalNode, MarkMpn.Sql4Cds.Engine, Version=0.0.0.0, Culture=neutral"),
+            new VisualizerTargetType($"%{DisplayName}%", "MarkMpn.Sql4Cds.Engine.ExecutionPlan.ConstantScanNode, MarkMpn.Sql4Cds.Engine, Version=0.0.0.0, Culture=neutral"),
+            new VisualizerTargetType($"%{DisplayName}%", "MarkMpn.Sql4Cds.Engine.ExecutionPlan.ContinueBreakNode, MarkMpn.Sql4Cds.Engine, Version=0.0.0.0, Culture=neutral"),
+            new VisualizerTargetType($"%{DisplayName}%", "MarkMpn.Sql4Cds.Engine.ExecutionPlan.DeclareVariablesNode, MarkMpn.Sql4Cds.Engine, Version=0.0.0.0, Culture=neutral"),
+            new VisualizerTargetType($"%{DisplayName}%", "MarkMpn.Sql4Cds.Engine.ExecutionPlan.DeleteNode, MarkMpn.Sql4Cds.Engine, Version=0.0.0.0, Culture=neutral"),
+            new VisualizerTargetType($"%{DisplayName}%", "MarkMpn.Sql4Cds.Engine.ExecutionPlan.DistinctNode, MarkMpn.Sql4Cds.Engine, Version=0.0.0.0, Culture=neutral"),
+            new VisualizerTargetType($"%{DisplayName}%", "MarkMpn.Sql4Cds.Engine.ExecutionPlan.ExecuteAsNode, MarkMpn.Sql4Cds.Engine, Version=0.0.0.0, Culture=neutral"),
+            new VisualizerTargetType($"%{DisplayName}%", "MarkMpn.Sql4Cds.Engine.ExecutionPlan.ExecuteMesageNode, MarkMpn.Sql4Cds.Engine, Version=0.0.0.0, Culture=neutral"),
+            new VisualizerTargetType($"%{DisplayName}%", "MarkMpn.Sql4Cds.Engine.ExecutionPlan.FetchXmlScan, MarkMpn.Sql4Cds.Engine, Version=0.0.0.0, Culture=neutral"),
+            new VisualizerTargetType($"%{DisplayName}%", "MarkMpn.Sql4Cds.Engine.ExecutionPlan.FilterNode, MarkMpn.Sql4Cds.Engine, Version=0.0.0.0, Culture=neutral"),
+            new VisualizerTargetType($"%{DisplayName}%", "MarkMpn.Sql4Cds.Engine.ExecutionPlan.GlobalOptionSetQueryNode, MarkMpn.Sql4Cds.Engine, Version=0.0.0.0, Culture=neutral"),
+            new VisualizerTargetType($"%{DisplayName}%", "MarkMpn.Sql4Cds.Engine.ExecutionPlan.GotoLabelNode, MarkMpn.Sql4Cds.Engine, Version=0.0.0.0, Culture=neutral"),
+            new VisualizerTargetType($"%{DisplayName}%", "MarkMpn.Sql4Cds.Engine.ExecutionPlan.GoToNode, MarkMpn.Sql4Cds.Engine, Version=0.0.0.0, Culture=neutral"),
+            new VisualizerTargetType($"%{DisplayName}%", "MarkMpn.Sql4Cds.Engine.ExecutionPlan.HashJoinNode, MarkMpn.Sql4Cds.Engine, Version=0.0.0.0, Culture=neutral"),
+            new VisualizerTargetType($"%{DisplayName}%", "MarkMpn.Sql4Cds.Engine.ExecutionPlan.HashMatchAggregateNode, MarkMpn.Sql4Cds.Engine, Version=0.0.0.0, Culture=neutral"),
+            new VisualizerTargetType($"%{DisplayName}%", "MarkMpn.Sql4Cds.Engine.ExecutionPlan.IndexSpoolNode, MarkMpn.Sql4Cds.Engine, Version=0.0.0.0, Culture=neutral"),
+            new VisualizerTargetType($"%{DisplayName}%", "MarkMpn.Sql4Cds.Engine.ExecutionPlan.InsertNode, MarkMpn.Sql4Cds.Engine, Version=0.0.0.0, Culture=neutral"),
+            new VisualizerTargetType($"%{DisplayName}%", "MarkMpn.Sql4Cds.Engine.ExecutionPlan.MergeJoinNode, MarkMpn.Sql4Cds.Engine, Version=0.0.0.0, Culture=neutral"),
+            new VisualizerTargetType($"%{DisplayName}%", "MarkMpn.Sql4Cds.Engine.ExecutionPlan.MetadataQueryNode, MarkMpn.Sql4Cds.Engine, Version=0.0.0.0, Culture=neutral"),
+            new VisualizerTargetType($"%{DisplayName}%", "MarkMpn.Sql4Cds.Engine.ExecutionPlan.NestedLoopNode, MarkMpn.Sql4Cds.Engine, Version=0.0.0.0, Culture=neutral"),
+            new VisualizerTargetType($"%{DisplayName}%", "MarkMpn.Sql4Cds.Engine.ExecutionPlan.OffsetFetchNode, MarkMpn.Sql4Cds.Engine, Version=0.0.0.0, Culture=neutral"),
+            new VisualizerTargetType($"%{DisplayName}%", "MarkMpn.Sql4Cds.Engine.ExecutionPlan.OpenJsonNode, MarkMpn.Sql4Cds.Engine, Version=0.0.0.0, Culture=neutral"),
+            new VisualizerTargetType($"%{DisplayName}%", "MarkMpn.Sql4Cds.Engine.ExecutionPlan.PartitionedAggregateNode, MarkMpn.Sql4Cds.Engine, Version=0.0.0.0, Culture=neutral"),
+            new VisualizerTargetType($"%{DisplayName}%", "MarkMpn.Sql4Cds.Engine.ExecutionPlan.PrintNode, MarkMpn.Sql4Cds.Engine, Version=0.0.0.0, Culture=neutral"),
+            new VisualizerTargetType($"%{DisplayName}%", "MarkMpn.Sql4Cds.Engine.ExecutionPlan.RaiseErrorNode, MarkMpn.Sql4Cds.Engine, Version=0.0.0.0, Culture=neutral"),
+            new VisualizerTargetType($"%{DisplayName}%", "MarkMpn.Sql4Cds.Engine.ExecutionPlan.RetrieveTotalRecordCountNode, MarkMpn.Sql4Cds.Engine, Version=0.0.0.0, Culture=neutral"),
+            new VisualizerTargetType($"%{DisplayName}%", "MarkMpn.Sql4Cds.Engine.ExecutionPlan.RevertNode, MarkMpn.Sql4Cds.Engine, Version=0.0.0.0, Culture=neutral"),
+            new VisualizerTargetType($"%{DisplayName}%", "MarkMpn.Sql4Cds.Engine.ExecutionPlan.SelectNode, MarkMpn.Sql4Cds.Engine, Version=0.0.0.0, Culture=neutral"),
+            new VisualizerTargetType($"%{DisplayName}%", "MarkMpn.Sql4Cds.Engine.ExecutionPlan.SortNode, MarkMpn.Sql4Cds.Engine, Version=0.0.0.0, Culture=neutral"),
+            new VisualizerTargetType($"%{DisplayName}%", "MarkMpn.Sql4Cds.Engine.ExecutionPlan.SqlNode, MarkMpn.Sql4Cds.Engine, Version=0.0.0.0, Culture=neutral"),
+            new VisualizerTargetType($"%{DisplayName}%", "MarkMpn.Sql4Cds.Engine.ExecutionPlan.StreamAggregateNode, MarkMpn.Sql4Cds.Engine, Version=0.0.0.0, Culture=neutral"),
+            new VisualizerTargetType($"%{DisplayName}%", "MarkMpn.Sql4Cds.Engine.ExecutionPlan.SystemFunctionNode, MarkMpn.Sql4Cds.Engine, Version=0.0.0.0, Culture=neutral"),
+            new VisualizerTargetType($"%{DisplayName}%", "MarkMpn.Sql4Cds.Engine.ExecutionPlan.TableSpoolNode, MarkMpn.Sql4Cds.Engine, Version=0.0.0.0, Culture=neutral"),
+            new VisualizerTargetType($"%{DisplayName}%", "MarkMpn.Sql4Cds.Engine.ExecutionPlan.ThrowNode, MarkMpn.Sql4Cds.Engine, Version=0.0.0.0, Culture=neutral"),
+            new VisualizerTargetType($"%{DisplayName}%", "MarkMpn.Sql4Cds.Engine.ExecutionPlan.TopNode, MarkMpn.Sql4Cds.Engine, Version=0.0.0.0, Culture=neutral"),
+            new VisualizerTargetType($"%{DisplayName}%", "MarkMpn.Sql4Cds.Engine.ExecutionPlan.BeginTryNode, MarkMpn.Sql4Cds.Engine, Version=0.0.0.0, Culture=neutral"),
+            new VisualizerTargetType($"%{DisplayName}%", "MarkMpn.Sql4Cds.Engine.ExecutionPlan.EndTryNode, MarkMpn.Sql4Cds.Engine, Version=0.0.0.0, Culture=neutral"),
+            new VisualizerTargetType($"%{DisplayName}%", "MarkMpn.Sql4Cds.Engine.ExecutionPlan.BeginCatchNode, MarkMpn.Sql4Cds.Engine, Version=0.0.0.0, Culture=neutral"),
+            new VisualizerTargetType($"%{DisplayName}%", "MarkMpn.Sql4Cds.Engine.ExecutionPlan.EndCatchNode, MarkMpn.Sql4Cds.Engine, Version=0.0.0.0, Culture=neutral"),
+            new VisualizerTargetType($"%{DisplayName}%", "MarkMpn.Sql4Cds.Engine.ExecutionPlan.UpdateNode, MarkMpn.Sql4Cds.Engine, Version=0.0.0.0, Culture=neutral"),
+            new VisualizerTargetType($"%{DisplayName}%", "MarkMpn.Sql4Cds.Engine.ExecutionPlan.WaitForNode, MarkMpn.Sql4Cds.Engine, Version=0.0.0.0, Culture=neutral"),
+            new VisualizerTargetType($"%{DisplayName}%", "MarkMpn.Sql4Cds.Engine.ExecutionPlan.XmlWriterNode, MarkMpn.Sql4Cds.Engine, Version=0.0.0.0, Culture=neutral"),
+            new VisualizerTargetType($"%{DisplayName}%", "MarkMpn.Sql4Cds.Engine.Sql4CdsCommand, MarkMpn.Sql4Cds.Engine, Version=0.0.0.0, Culture=neutral"))
+        {
+            VisualizerObjectSourceType = new("MarkMpn.Sql4Cds.DebugVisualizer.DebugeeSide.ExecutionPlanObjectSource, MarkMpn.Sql4Cds.DebugVisualizer.DebugeeSide")
+        };
+
+        public override async Task<IRemoteUserControl> CreateVisualizerAsync(VisualizerTarget visualizerTarget, CancellationToken cancellationToken)
+        {
+            var serializedPlan = await visualizerTarget.ObjectSource.RequestDataAsync<SerializedPlan>(null, cancellationToken);
+            var plan = ExecutionPlanSerializer.Deserialize(serializedPlan.Plan);
+
+            await ThreadHelper.JoinableTaskFactory.SwitchToMainThreadAsync(cancellationToken);
+            var wrapper = new WpfControlWrapper(new QueryPlanUserControl(plan));
+            return wrapper;
+        }
+    }
+}

MarkMpn.Sql4Cds.DebugVisualizer.DebuggerSide/ExtensionEntrypoint.cs

@@ -0,0 +1,26 @@
+using Microsoft.Extensions.DependencyInjection;
+using Microsoft.VisualStudio.Extensibility;
+
+namespace MarkMpn.Sql4Cds.DebugVisualizer.DebuggerSide
+{
+    /// <summary>
+    /// Extension entrypoint for the VisualStudio.Extensibility extension.
+    /// </summary>
+    [VisualStudioContribution]
+    internal class ExtensionEntrypoint : Extension
+    {
+        /// <inheritdoc/>
+        public override ExtensionConfiguration ExtensionConfiguration => new()
+        {
+            RequiresInProcessHosting = true
+        };
+
+        /// <inheritdoc />
+        protected override void InitializeServices(IServiceCollection serviceCollection)
+        {
+            base.InitializeServices(serviceCollection);
+
+            // You can configure dependency injection here by adding services to the serviceCollection.
+        }
+    }
+}

MarkMpn.Sql4Cds.DebugVisualizer.DebuggerSide/MarkMpn.Sql4Cds.DebugVisualizer.DebuggerSide.csproj

@@ -0,0 +1,48 @@
+<Project Sdk="Microsoft.NET.Sdk.WindowsDesktop">
+  <PropertyGroup>
+    <TargetFramework>net472</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+    <LangVersion>latest</LangVersion>
+    <VssdkCompatibleExtension>true</VssdkCompatibleExtension>
+  </PropertyGroup>
+  <ItemGroup>
+    <None Remove="QueryPlanUserControl.xaml" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <Content Include="..\MarkMpn.Sql4Cds.DebugVisualizer.DebugeeSide\bin\$(Configuration)\net6.0\MarkMpn.Sql4Cds.DebugVisualizer.DebugeeSide.dll" Link="netcoreapp\MarkMpn.Sql4Cds.DebugVisualizer.DebugeeSide.dll" />
+    <Content Include="..\MarkMpn.Sql4Cds.DebugVisualizer.DebugeeSide\bin\$(Configuration)\net462\MarkMpn.Sql4Cds.DebugVisualizer.DebugeeSide.dll" Link="net2.0\MarkMpn.Sql4Cds.DebugVisualizer.DebugeeSide.dll" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <Page Include="QueryPlanUserControl.xaml">
+      <Generator>MSBuild:Compile</Generator>
+    </Page>
+  </ItemGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Microsoft.VisualStudio.DebuggerVisualizers" Version="17.6.1032901" />
+    <PackageReference Include="Microsoft.VisualStudio.Extensibility.Sdk" Version="17.9.2092" />
+    <PackageReference Include="Microsoft.VisualStudio.Extensibility.Build" Version="17.9.2092" />
+    <PackageReference Include="Microsoft.VisualStudio.SDK" Version="17.10.40171">
+      <ExcludeAssets>runtime</ExcludeAssets>
+    </PackageReference>
+  </ItemGroup>
+
+  <ItemGroup>
+    <Reference Include="PresentationCore" />
+    <Reference Include="PresentationFramework" />
+    <Reference Include="System.Xaml" />
+    <Reference Include="WindowsFormsIntegration" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <Folder Include="Images\" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\MarkMpn.Sql4Cds.Controls\MarkMpn.Sql4Cds.Controls.csproj" />
+    <ProjectReference Include="..\MarkMpn.Sql4Cds.Engine.NetFx\MarkMpn.Sql4Cds.Engine.NetFx.csproj" />
+  </ItemGroup>
+</Project>

MarkMpn.Sql4Cds.DebugVisualizer.DebuggerSide/QueryPlanUserControl.xaml

@@ -0,0 +1,6 @@
+<UserControl x:Class="MarkMpn.Sql4Cds.DebugVisualizer.DebuggerSide.QueryPlanUserControl"
+             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+             xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006">
+    <Grid x:Name="grid"/>
+</UserControl>