Dartar

function ClearOuList($count)
{
  #$comboboxOuNext1.DataSource = $null
  switch ($count) {
    1 {
         Get-Variable -Name "comboboxOuNext[1-9]" | %{$_.Value.visible=$false
         Get-Variable -Name "comboboxOuNext10" | %{$_.Value.visible=$false
        }
    2 {
         Get-Variable -Name "comboboxOuNext[2-9]" | %{$_.Value.visible=$false
         Get-Variable -Name "comboboxOuNext10" | %{$_.Value.visible=$false
        }
    3 {
         Get-Variable -Name "comboboxOuNext[3-9]" | %{$_.Value.visible=$false
         Get-Variable -Name "comboboxOuNext10" | %{$_.Value.visible=$false
        }
    4 {
         Get-Variable -Name "comboboxOuNext[4-9]" | %{$_.Value.visible=$false
         Get-Variable -Name "comboboxOuNext10" | %{$_.Value.visible=$false
        }
    5{
         Get-Variable -Name "comboboxOuNext[5-9]" | %{$_.Value.visible=$false
         Get-Variable -Name "comboboxOuNext10" | %{$_.Value.visible=$false
        }
    6{
         Get-Variable -Name "comboboxOuNext[6-9]" | %{$_.Value.visible=$false
         Get-Variable -Name "comboboxOuNext10" | %{$_.Value.visible=$false
        }
    7 {
         Get-Variable -Name "comboboxOuNext[7-9]" | %{$_.Value.visible=$false
         Get-Variable -Name "comboboxOuNext10" | %{$_.Value.visible=$false
        }
    8 {
         Get-Variable -Name "comboboxOuNext[89]" | %{$_.Value.visible=$false
         Get-Variable -Name "comboboxOuNext10" | %{$_.Value.visible=$false
        }
    9 {
         Get-Variable -Name "comboboxOuNext9" | %{$_.Value.visible=$false
         Get-Variable -Name "comboboxOuNext10" | %{$_.Value.visible=$false
        }
    10 {
          Get-Variable -Name "comboboxOuNext10" | %{$_.Value.visible=$false
        }
  }
}

Get-Variable * | ? {$_.name -match "comboboxOuNext[0-9]{1,2}"}