c# - How to move object between dictionaries? -

i have simple task need check objects in 1 dictionary , if criteria met move another. asking if there pattern can use language feature achieve that. straight approach simple - use temporaty collection, first step determine canditates, second step actual move. ok not cool.

current code

class order {   public int id;   public bool isready; }  dictionary<int, order> activedictionary; dictionary<int, order> processeddictionary;  public update() {      // temporary list, uncool  list<order> processed = new list<order>();    // fist step  foreach(order ord in activedictionary)  {   if(ord.isready)   {     processed.add(ord);   }  }   // ok lets move  foreach(order ord in processed)  {   activedictionary.remove(ord.id);   processeddictionary.add(ord.id, ord);  } } 

there nothing wrong code have.

as exercise in alternatives, like...

processeddictionary = processeddictionary     .concat(         activedictionary.where(kvp => kvp.value.ready)     )     .todictionary(kvp => kvp.key, kvp => kvp.value);  activedictionary = activedictionary.where(kvp => !kvp.value.ready)     .todictionary(kvp => kvp.key, kvp => kvp.value);