RuntimeBinderInternalCompilerException when using Microsoft.SqlServer.Types with Dapper

Question

Using a Sql Server Data Tools project whose target platform is set to one of:

• SQL Server 2008
• SQL Server 2012
• SQL Server 2014

And deploying to (localdb)\Projects or (localdb)\ProjectsV12

Calling a stored procedure that returns a Geometry, Geography or HierachyId type such as:

CREATE PROCEDURE [dbo].[SelectSqlGeometry]
    @x Geometry
AS
    SELECT @x as y
RETURN 0

The following calling code:

var result = Connection.Query("dbo.SelectSqlGeometry", new { x = geometry }, commandType: CommandType.StoredProcedure).First();
bool isSame = ((bool)geometry.STEquals(result.y));

results in the following exception on the STEquals line.

Microsoft.CSharp.RuntimeBinder.RuntimeBinderInternalCompilerException was unhandled by user code HResult=-2146233088 Message=An unexpected exception occurred while binding a dynamic operation
Source=Microsoft.CSharp StackTrace: at Microsoft.CSharp.RuntimeBinder.RuntimeBinder.Bind(DynamicMetaObjectBinder payload, IEnumerable1 parameters, DynamicMetaObject[] args, DynamicMetaObject& deferredBinding) at Microsoft.CSharp.RuntimeBinder.BinderHelper.Bind(DynamicMetaObjectBinder action, RuntimeBinder binder, IEnumerable1 args, IEnumerable1 arginfos, DynamicMetaObject onBindingError) at Microsoft.CSharp.RuntimeBinder.CSharpConvertBinder.FallbackConvert(DynamicMetaObject target, DynamicMetaObject errorSuggestion) at System.Dynamic.DynamicMetaObject.BindConvert(ConvertBinder binder) at System.Dynamic.ConvertBinder.Bind(DynamicMetaObject target, DynamicMetaObject[] args) at System.Dynamic.DynamicMetaObjectBinder.Bind(Object[] args, ReadOnlyCollection1 parameters, LabelTarget returnLabel) at System.Runtime.CompilerServices.CallSiteBinder.BindCore[T](CallSite`1 site, Object[] args) at System.Dynamic.UpdateDelegates.UpdateAndExecute1[T0,TRet](CallSite site, T0 arg0) at DATailor.Examples.Dapper.SqlClient.Test.AllTypesDAOTest.TestAllTypesDynamic()

Answer 1

Although the root cause is not Dapper, there is an underlying exception that is being swallowed.

Using ADO.Net code like:

var geometry = Util.CreateSqlGeometry();
SqlDataReader reader=null;
SqlCommand cmd=null;
try
{
    cmd = new SqlCommand("dbo.SelectSqlGeometry", (SqlConnection)Connection);
    cmd.CommandType = CommandType.StoredProcedure;
    cmd.Parameters.Add(new SqlParameter("@x", geometry) { UdtTypeName = "Geometry" });
    cmd.ExecuteNonQuery();
    reader = cmd.ExecuteReader();
    while (reader.Read())
    {
        var y = (SqlGeometry)reader.GetValue(0);
        var same = geometry.STEquals(y);
    }
    reader.Dispose();
    reader = null;
}
finally
{
    if (reader != null)
    {
        if (!reader.IsClosed) try { cmd.Cancel(); }
            catch {}
        reader.Dispose();
    }
    if (cmd != null) cmd.Dispose();
    Connection.Close();
}

The following exception is thrown at reader.GetValue

System.InvalidCastException was unhandled HResult=-2147467262
Message=[A]Microsoft.SqlServer.Types.SqlGeometry cannot be cast to [B]Microsoft.SqlServer.Types.SqlGeometry. Type A originates from 'Microsoft.SqlServer.Types, Version=10.0.0.0, Culture=neutral, PublicKeyToken=89845dcd8080cc91' in the context 'Default' at location 'C:\Windows\assembly\GAC_MSIL\Microsoft.SqlServer.Types\10.0.0.0__89845dcd8080cc91\Microsoft.SqlServer.Types.dll'. Type B originates from 'Microsoft.SqlServer.Types, Version=11.0.0.0, Culture=neutral, PublicKeyToken=89845dcd8080cc91' in the context 'Default' at location 'C:\Windows\assembly\GAC_MSIL\Microsoft.SqlServer.Types\11.0.0.0__89845dcd8080cc91\Microsoft.SqlServer.Types.dll'. Source=DynamicGeometryIssue StackTrace: at DynamicGeometryIssue.TestDao.TestGeometry() in c:\Users\rich\Documents\Visual Studio 2013\Projects\DynamicGeometryIssue\DynamicGeometryIssue\TestDao.cs:line 27 at DynamicGeometryIssue.Program.Main(String[] args) in c:\Users\rich\Documents\Visual Studio 2013\Projects\DynamicGeometryIssue\DynamicGeometryIssue\Program.cs:line 15 at System.AppDomain._nExecuteAssembly(RuntimeAssembly assembly, String[] args) at System.AppDomain.ExecuteAssembly(String assemblyFile, Evidence assemblySecurity, String[] args) at Microsoft.VisualStudio.HostingProcess.HostProc.RunUsersAssembly() at System.Threading.ThreadHelper.ThreadStart_Context(Object state) at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx) at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx) at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state) at System.Threading.ThreadHelper.ThreadStart() InnerException:

The cause of the underlying exception is a known breaking change in SQL Server 2012. See the SQL CLR Data Types section of the following MSDN documentation

http://msdn.microsoft.com/en-us/library/ms143179(v=sql.110).aspx

The resolution, that has worked for me is to create the following bindingRedirect in the app.config or web.config.

<runtime>
<assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">
  <dependentAssembly>
    <assemblyIdentity name="Microsoft.SqlServer.Types"
                      publicKeyToken="89845dcd8080cc91"
                      culture="neutral" />
    <bindingRedirect oldVersion="10.0.0.0"
                     newVersion="11.0.0.0"/>
  </dependentAssembly>
</assemblyBinding>
</runtime>

Alternately, with .NET 4.5 you can change your connection string to include a value of "SQL Server 2012" for the "Type System Version" attribute to force SqlClient to load version 11.0 of the assembly.

Another workaround is code like:

var geo = SqlGeography.Deserialize(rdr.GetSqlBytes(0));

However, I don't believe this is an option with Dapper.