How To Add Rows With Script Component?

Why am I getting this design-time error from my script:

'Microsoft.SqlServer.Dts.Pipeline.ScriptBuffer.Protected Sub AddRow()' is not accessible in this context because it is 'Protected'

Here's my script:



' Microsoft SQL Server Integration Services user script component

' This is your new script component in Microsoft Visual Basic .NET

' ScriptMain is the entrypoint class for script components

Imports System

Imports System.Data

Imports System.Math

Imports Microsoft.SqlServer.Dts.Pipeline.Wrapper

Imports Microsoft.SqlServer.Dts.Runtime.Wrapper

Public Class ScriptMain

Inherits UserComponent

Public Overrides Sub Input0_ProcessInputRow(ByVal Row As Input0Buffer)

Dim output_row As Buffer = Row

Dim seq As Integer = 0

For Each code As String In Row.IC.ToString().Split("*"c)

If seq > 0 Then

output_row = Row.AddRow()

End If

output_row.seq = seq

output_row.value = code

seq += 1

Next

End Sub

End Class

And here's the error it generates:

Error 3 Validation error. Convert Bib (ISC) to Prep Item_Detail: Split ISC codes [52]: Error 30311: Value of type 'ScriptComponent_d021a3fd485946868f5f0daadaf0e57c.Input0Buffer' cannot be converted to 'System.Buffer'. Line 15 Column 36 through 38 Error 30390: 'Microsoft.SqlServer.Dts.Pipeline.ScriptBuffer.Protected Sub AddRow()' is not accessible in this context because it is 'Protected'. Line 19 Column 30 through 39 Error 30456: 'seq' is not a member of 'System.Buffer'. Line 21 Column 13 through 26 Error 30456: 'value' is not a member of 'System.Buffer'. Line 22 Column 13 through 28 ConvertDIN.dtsx 0 0