// Creates an empty CodeDirectiveCollection.
CodeDirectiveCollection collection = new CodeDirectiveCollection();

// Adds a CodeDirective to the collection.
collection.Add(new CodeRegionDirective(CodeRegionMode.Start, "Region1"));

// Adds an array of CodeDirective objects to the collection.
CodeDirective[] directives = { 
    new CodeRegionDirective(CodeRegionMode.Start,"Region1"), 
    new CodeRegionDirective(CodeRegionMode.End,"Region1") };
collection.AddRange(directives);

// Adds a collection of CodeDirective objects to the collection.
CodeDirectiveCollection directivesCollection = new CodeDirectiveCollection();
directivesCollection.Add(new CodeRegionDirective(CodeRegionMode.Start, "Region2"));
directivesCollection.Add(new CodeRegionDirective(CodeRegionMode.End, "Region2"));
collection.AddRange(directivesCollection);

// Tests for the presence of a CodeDirective in the 
// collection, and retrieves its index if it is found.
CodeDirective testDirective = new CodeRegionDirective(CodeRegionMode.Start, "Region1");
int itemIndex = -1;
if (collection.Contains(testDirective))
    itemIndex = collection.IndexOf(testDirective);

// Copies the contents of the collection beginning at index 0 to the specified CodeDirective array.
// 'directives' is a CodeDirective array.
collection.CopyTo(directives, 0);

// Retrieves the count of the items in the collection.
int collectionCount = collection.Count;

// Inserts a CodeDirective at index 0 of the collection.
collection.Insert(0, new CodeRegionDirective(CodeRegionMode.Start, "Region1"));

// Removes the specified CodeDirective from the collection.
CodeDirective directive = new CodeRegionDirective(CodeRegionMode.Start, "Region1");
collection.Remove(directive);

// Removes the CodeDirective at index 0.
collection.RemoveAt(0);