nonnb

OP needs to dynamically find a filtered row count across (almost) tables in a database, based on a master reference table 
containing the column names. OP then wants to further restrict this result set by seeking only specific values of the result. 

AFAIK this can only be done with dynamic SQL. Here I build up a nasty dynamic sql query which consists of a CTE unioning 
all the grouped table row counts meeting the master table criteria, and then applying an overall grouped sum at the bottom.

nonnb

using System.Collections.Generic;
using System.Linq;

namespace Generators
{
    public static class PrimesGenerator
    {
        public static IEnumerable<int> GetPrimes()
        {
            // Given just 2, we can determine all other primes

nonnb

using System;
using System.Collections.Generic;
using System.Windows.Forms;
using Ninject;
using Ninject.Modules;

namespace WindowsFormsApplication5
{
    public partial class Form1 : Form
    {

nonnb

   // Original Code:
   // public static bool IsNull_yes(dynamic source)
   // {
   //      if (source.x == null || source.x.y == null) return true;
   //     return false;
   // }
    
    // Decompiled with dotPeek
    public static bool IsNull_exception(object source)
    {

nonnb

void Main()
{
	try
	{
     // We want the stacktrace to drill through here.
     BuggyMethod();
	}
	catch (Exception ex)
	{
	   // Direct Mutation of the exception reference doesn't reset the stacktrace, although may be dubious practice (wrapped InnerException is arguably a better, mutation free alternative)

nonnb

using System.Collections.Generic;
using NUnit.Framework;

namespace NUnitNames
{
    public class Tests
    {
        private static readonly IEnumerable<MyTestModel> MyTestModels = new[]
        {
            new MyTestModel

nonnb

using System.Collections;
using System.Collections.Generic;
using Xunit;

namespace TestNames
{
    public class UnitTest1
    {
        [Theory]
        [ClassData(typeof(MyTestModel))]