' Create an empty ParserErrorCollection.
Dim collection As New ParserErrorCollection()

' Add a ParserError to the collection.
collection.Add(New ParserError("ErrorName", "Path", 1))

' Add an array of ParserError objects to the collection.
Dim errors As ParserError() = _
    {New ParserError("Error 2", "Path", 1), _
    New ParserError("Error 3", "Path", 1)}
collection.AddRange(errors)

' Ads a collection of ParserError objects to the collection.
Dim errorsCollection As New ParserErrorCollection()
errorsCollection.Add(New ParserError("Error", "Path", 1))
errorsCollection.Add(New ParserError("Error", "Path", 1))
collection.AddRange(errorsCollection)

' Test for the presence of a ParserError in the 
' collection, and retrieve its index if it is found.
Dim testError As New ParserError("Error", "Path", 1)
Dim itemIndex As Integer = -1
If collection.Contains(testError) Then
  itemIndex = collection.IndexOf(testError)
End If

' Copy the contents of the collection to a
' compatible array, starting at index 0 of the
' destination array. 
Dim errorsToSort(5) As ParserError
collection.CopyTo(errorsToSort, 0)

' Retrieve the count of the items in the collection.
Dim collectionCount As Integer = collection.Count

' Insert a ParserError at index 0 of the collection.
Dim [error] As New ParserError("Error", "Path", 1)
collection.Insert(0, [error])

' Remove the specified ParserError from the collection.
collection.Remove([error])

' Remove the ParserError at index 0.
collection.RemoveAt(0)