Entity Framework EF4.1 - opgeslagen procedure kan niet worden gevonden in de container

Als u EF 4.1 en hoger gebruikt, wijzigt u "ObjectParameter" in "SqlParameter" en "ExecuteFunction" in "ExecuteStoreQuery" in uw Context.cs-bestand.

De methode "ExecuteStoreQuery" verwacht ook dat u de parameternamen vóór het opgeslagen proces toevoegt. Vind hieronder een fragment:

var param1Parameter = param1 != null ?
new SqlParameter("param1", param1) :
new SqlParameter("param1", typeof(string));

var param2Parameter = param2 != null ?
new SqlParameter("param2", param2) :
new SqlParameter("param2", typeof(int));

return ((IObjectContextAdapter)this).ObjectContext.ExecuteStoreQuery<sp_TestSproc_Result>("sp_TestSproc @param1, @param2", param1Parameter, param2Parameter);

Als u een sjabloon gebruikt om uw code te genereren, vindt u het onderstaande fragment misschien ook nuttig. D.w.z. Ik heb de standaard "Fluent TT" generator aangepast aan EF 4.3:

    void WriteFunctionImport(EdmFunction edmFunction, bool includeMergeOption)
    {
        var parameters = FunctionImportParameter.Create(edmFunction.Parameters, Code, EFTools);
        var paramList = String.Join(", ", parameters.Select(p => p.FunctionParameterType + " " + p.FunctionParameterName).ToArray());
        var returnType = edmFunction.ReturnParameter == null ? null : EFTools.GetElementType(edmFunction.ReturnParameter.TypeUsage);
        var processedReturn = returnType == null ? "int" : "ObjectResult<" + MultiSchemaEscape(returnType) + ">";

        if (includeMergeOption)
        {
            paramList = Code.StringAfter(paramList, ", ") + "MergeOption mergeOption";
        }
    #>

        <#=AccessibilityAndVirtual(Accessibility.ForMethod(edmFunction))#> <#=processedReturn#> <#=Code.Escape(edmFunction)#>(<#=paramList#>)
        {
    <#+
            if(returnType != null && (returnType.EdmType.BuiltInTypeKind == BuiltInTypeKind.EntityType ||
                                      returnType.EdmType.BuiltInTypeKind == BuiltInTypeKind.ComplexType))
            {
    #>
            ((IObjectContextAdapter)this).ObjectContext.MetadataWorkspace.LoadFromAssembly(typeof(<#=MultiSchemaEscape(returnType)#>).Assembly);

    <#+
            }

            foreach (var parameter in parameters.Where(p => p.NeedsLocalVariable))
            {
                var isNotNull = parameter.IsNullableOfT ? parameter.FunctionParameterName + ".HasValue" : parameter.FunctionParameterName + " != null";
                var notNullInit = "new SqlParameter(\"" + parameter.EsqlParameterName + "\", " + parameter.FunctionParameterName + ")";
                var nullInit = "new SqlParameter(\"" + parameter.EsqlParameterName + "\", typeof(" + parameter.RawClrTypeName + "))";
    #>
            var <#=parameter.LocalVariableName#> = <#=isNotNull#> ?
                <#=notNullInit#> :
                <#=nullInit#>;

    <#+
            }

            var genericArg = returnType == null ? "" : "<" + MultiSchemaEscape(returnType) + ">";
            var callParams = Code.StringBefore(", ", String.Join(", ", parameters.Select(p => p.ExecuteParameterName).ToArray()));
            var spParams = Code.StringBefore("@", String.Join(", @", parameters.Select(p => p.EsqlParameterName).ToArray()));

            if (includeMergeOption)
            {
                callParams = ", mergeOption" + callParams;
            }
    #>
            return ((IObjectContextAdapter)this).ObjectContext.ExecuteStoreQuery<#=genericArg#>("<#=edmFunction.Name#> <#=spParams#>"
                        <#=callParams#>);
        }
    <#+
        if(!includeMergeOption && returnType != null && returnType.EdmType.BuiltInTypeKind == BuiltInTypeKind.EntityType)
        {
            WriteFunctionImport(edmFunction, true);
        }
    }