Question

In such a construction:

Dictionary<myObject, Dictionary<myEnum, secondObject>> myDict;

I use foreach to search all items in outer Dictionary:

foreach (var elem in myDict)
{
//I need to make some modifications in inner Dictionary for chosen myEnum
}

How to do this?

Answer 1

The foreach loop on a Dictionary enumerates key-value pairs. The key is in elem.Key; the value (i.e. your target inner dictionary) is elem.Value.

foreach (var elem in myDict)
{
    //I need to make some modifications in inner Dictionary for chosen myEnum
    Dictionary<myEnum, secondObject> inner = elem.Value;
    inner[myEnum.EnumVal1] = new secondObject(123);
    inner[myEnum.EnumVal2] = new secondObject(456);
}