Working with System.ComponentModel.MarshalByValueComponent - powershell

Question

I'm pulling data from SQL using System.Data.SqlClient and eventaully end up with a dataset stored into a variable:
$SqlQuery = "select * from my_Table"
$SqlConnection = New-Object System.Data.SqlClient.SqlConnection
$SqlConnection.ConnectionString = "Server = $SQLServer; Database = $SQLDBName; Integrated Security = True"
$SqlConnection.Open()
$SqlCmd = New-Object System.Data.SqlClient.SqlCommand
$SqlCmd.CommandText = $SqlQuery
$SqlCmd.Connection = $SqlConnection
$SqlAdapter = New-Object System.Data.SqlClient.SqlDataAdapter
$SqlAdapter.SelectCommand = $SqlCmd
$amManagedFolders = New-Object System.Data.DataSet
$SqlAdapter.Fill($dataset)
I then access the table via $dataset.Tables[0] which is of type: System.ComponentModel.MarshalByValueComponent
I need to be able to use ForEach in order to loop through that table and store the results into a CustomPSObject for later use, however, I am not sure of a method to use in order to achieve this.

Answer 1

Using this page I found the following code helpful. I'm taking a SQL query and producing an Excel workbook with the results.
$DataSet = New-Object System.Data.DataSet
$SqlAdapter.Fill($DataSet)
$SqlConnection.Close()
$DataSetTable = $DataSet.Tables["Table"]
## - Build the Excel column heading:
[Array] $getColumnNames = $DataSetTable.Columns | Select ColumnName
## - Build column header:
[Int] $RowHeader = 1
foreach ($ColH in $getColumnNames)
....
foreach ($rec in $DataSetTable.Rows)
{
foreach ($Coln in $getColumnNames)
{
## - Next line convert cell to be text only:
$xlsSh.Cells.NumberFormat = "#"
## - Populating columns:
$xlsSh.Cells.Item($rowData, $colData) = $rec.$($Coln.ColumnName).ToString()
$ColData++
}
$rowData++; $ColData = 1
}
-Edit, saw your comment. You might be able to adapt the answer to this question