Question

I am porting a library from C++ to C#. The old library uses vectors from C++ and in the C# I am using generic Dictionaries because they’re actually a good data structure for what I’m doing (each element has an ID, then I just use using TypeDictionary = Dictionary<String, Type>;). Now, in the C# code I use a loop like this one

TypeDictionary.Enumerator tdEnum = MyTypeDictionary.GetEnumerator();

while( tdEnum.MoveNext() ) 
{
   Type element = typeElement.Current.Value;

   // More code here
}

to iterate through the elements of the collection. The problem is that in particular cases I need to check if a certain enumerator has reached the end of the collection, in C++ I would have done a check like this:

if ( tdEnum == MyTypeDictionary.end() ) // More code here

But I just don’t know how to handle this situation in C#, any ideas?

Thank you
Tommaso

Answer 1

Here’s a pretty simple way of accomplishing this.

bool hasNext = tdEnum.MoveNext();
while (hasNext) {
    int i = tdEnum.Current;
    hasNext = tdEnum.MoveNext();
}

I found an online tutorial that also may help you understand how this works.

http://www.c-sharpcorner.com/UploadFile/prasadh/Enumerators11132005232321PM/Enumerators.aspx