EF6 Execute Stored procedure, automatic parameters

DbContextHelper.cs

using System;
using System.Data.Entity;
using System.ComponentModel.DataAnnotations.Schema;
using System.Linq;
using System.Collections.Generic;
using System.Data.SqlClient;

public static class DbContextHelper
{
    /// <summary>
    /// Execute the stored procedure on the remote server
    /// </summary>
    /// <typeparam name="TReturn">The return type from <paramref name="method"/> </typeparam>
    /// <param name="method">Either <see cref="Database.ExecuteSqlCommand(string, object[])"/> 
    /// or <see cref="Database.SqlQuery{TElement}(string, object[])"/> </param>
    /// <param name="proc">The name of the stored procedure to execute</param>
    /// <param name="parameters">The parameters to pass to the stored procedure</param>
    /// <returns></returns>
    public static TReturn Execute<TReturn>(Func<string, object[], TReturn> method, string proc, params object[] parameters)
    {
        var sqlParameters = parameters
            .Select((param, idx) => new SqlParameter($"@p{idx}", param))
            .ToArray();

        var paramList = string.Join(", ", parameters.Select((p, idx) => $"@p{idx}"));
        var query = $"{proc} {paramList}";

        return method(query, sqlParameters);
    }
}