MapIterator.key Method
Definition
Important
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Returns the key from the (key, value) pair that is referred to by the iterator.
public:
virtual System::Object ^ key();public virtual object key ();abstract member key : unit -> obj
override this.key : unit -> objPublic Overridable Function key () As ObjectReturns
The key value of the map entry that is denoted by the iterator.
Remarks
Use the SetIterator.more method to test whether an element exists before you try to retrieve the key value of the map element.
The following example iterates through a map and returns a description of all the elements in the map.
static str writeMap (Map m)
{
MapIterator it = new MapIterator(m);
str result;
while (it.more())
{
result += it.key() + '\n' + it.value() + '\n';
it.next();
}
return result;
}