Extensions to change the Enabled state of a given type of VB.NET control in collection of controls, recursing through any child controls

Enabled.vb

'Usage: Form1.Controls.Enabled(Of Button)(False)
Imports System.Runtime.CompilerServices
Module Extensions
    <Extension()>
    Public Sub Enabled(Of T As Control)(cc As Control.ControlCollection, state As Boolean)
        For Each c As Control In cc ' Iterate through every object in the container
            If TypeOf c Is T Then ' Check if the object matches the type to set the state on
                CType(c, T).Enabled = state ' Set the state on the matching object
            ElseIf c.HasChildren Then ' Check if control is a parent ("Congratulations, omg look at that cute semi-colon!")
                Enabled(Of T)(c.Controls, state) ' Recurse to handle the children (else maybe get a nanny)
            End If
        Next
    End Sub
    
    <Extension()>
    Public Sub Enabled(Of T As Control)(c As Control, state As Boolean)
        For Each ci As Control In c.Controls
            If TypeOf ci Is T Then
                CType(ci, T).Enabled = state
            ElseIf ci.HasChildren Then
                Enabled(Of T)(ci, state)
            End If
        Next
    End Sub
    
    <Extension()>
    Public Sub Enabled(Of T As ToolStripMenuItem)(c As ToolStripItemCollection, state As Boolean)
        For Each ci As ToolStripItem In c
            If TypeOf ci Is T Then
                ci.Enabled = state
            End If
        Next
    End Sub
End Module