Entity Framework EF4.1 - lagret procedure kunne ikke findes i containeren

Hvis du bruger EF 4.1 og nyere, skal du ændre "ObjectParameter" til "SqlParameter" og "ExecuteFunction" til "ExecuteStoreQuery" i din Context.cs-fil.

"ExecuteStoreQuery"-metoden forventer også, at du tilføjer parameternavnene foran den lagrede proc. Find et uddrag nedenfor:

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);

Hvis du bruger en skabelon til at generere din kode, vil du muligvis også finde uddraget nedenfor nyttigt. dvs. Jeg har ændret standard "Fluent TT" generatoren, så den passer til 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);
        }
    }