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I have following code:

var failed = new List<(IProductChecker<TModel> name, IDictionary<int, string[]> failedProducts)>();
foreach (var ids in batches)
{
   var batch = Check(names, ids.ToArray()); // List<(IProductChecker<TModel> checker, IDictionary<int, string[]> failedProducts)>()
   
   failed.AddRange(batch);
}


currently I am adding range, however as I iterate through batches, names can repeat with different failedProducts, so my intention would be to add those products to existing `name` of batch.

What I have tried:

Something like:

if (failed.Any(x => batch.Select(b => b.checker).Contains(x.checker)))
{ 
   // concat products to existing dictionary as such name exists
  // add to failed[name].failedProducts.Add(batch[name].failedProducts)
}
else
{  // add new failed if such name does not exists
   // failed.Add(...)
}


but I can't figure out how to do that. Maybe someone could give me a hint how to solve it?
Posted
Updated 5-Oct-22 11:00am
v2
Comments
Richard Deeming 5-Oct-22 4:14am    
If you only want one entry for each name, wouldn't it make sense for failed to be a dictionary? Dictionary<IProductChecker<TModel>, IDictionary<int, string[]>>

1 solution

Try something along these lines

C#
    Dictionary<int, string[]> failedDict = new() 
     { 
         { 0, new string[] { "A", "B", "C" } },
         { 1, new string[] { "D", "E", "F" } } 
     };
     Dictionary<int, string[]> batchDict = new() 
     { 
         { 3, new string[] { "J", "K", "L" } }, 
         { 2, new string[] { "G", "H", "I" } } 
     };
     Dictionary<int, string[]> batchDict2 = new() 
     {
         { 4, new string[] { "M", "N", "O" } }, 
         { 5, new string[] { "P", "Q", "R" } } 
     };

     List<(string name, IDictionary<int, string[]> failedProducts)> failedList = new() 
     { 
         ("Widget",failedDict) 
     };
     List<(string name, IDictionary<int, string[]> batch)> batchList = new() 
     { 
         ("Item", batchDict),
         ("Widget",batchDict2) 
     };
      foreach(var b in batchList)
      {
        bool isMatched=false;
         foreach(var (name, failedProducts) in failedList)
          {
           if(b.name == name)
            {
             //convert the dictionary in a batchList item
             //to a collection of type KeyValuePair
             var kvPairs = b.batch.ToList();
             //add the pairs to the failedList item's dictionary
             kvPairs.ForEach(kv => failedProducts.Add(kv.Key, kv.Value));
             isMatched = true;
             break;
            }
          }
          if(!isMatched)
           {
            //the batchList item is not in the failedList so add it
            failedList.Add(b);
           }
      }
      foreach(var (name, failedProducts) in failedList)
       {
         Console.WriteLine(name);
         foreach(var kvp in failedProducts)
          {
            Console.WriteLine($"{kvp.Key} {string.Join(',',kvp.Value)}");
          }
       }
/*
Widget
0 A,B,C
1 D,E,F
4 M,N,O
5 P,Q,R
Item
3 J,K,L
2 G,H,I
*/

 
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