Getting the array key in a 'foreach' loop

Question

How do I get the key of the current element in a foreach loop in C#?

For example:

PHP

foreach ($array as $key => $value)
{
             


        

Answer 1

With DictionaryEntry and KeyValuePair:

Based on
MSDN

IDictionary openWith = new Dictionary()
{
   { "txt", "notepad.exe" }
   { "bmp", "paint.exe" }
   { "rtf", "wordpad.exe" }
};

foreach (DictionaryEntry de in openWith)
{
    Console.WriteLine("Key = {0}, Value = {1}", de.Key, de.Value);
}

// also

foreach (KeyValuePair de in openWith)
{
    Console.WriteLine("Key = {0}, Value = {1}", de.Key, de.Value);
}

Releated SO question: KeyValuePair VS DictionaryEntry