How can I copy a rows from a dataview, edit rows and re-insert them back into the underlying dataset

I have a dataset that I use to create a view filtered by certain criteria. I then take this view and create a temp. table. I go through the rows in the temp table and change some values and I need to take the rows in the temp table and add them to the original dataset.

What am I missing? My error is noted below in code next to the *****
When I step through the code everything is ok until the line with the error, where I am trying to add the row back to the original dataset

Dim dvView as dataview
Dim m_dstBaseSettings as Dataset
Dim m_ProjCode as String
Dim dtTempTable as DataTable
Dim drRow as Datarow 


dvDataview = m_dstBaseSettings.Tables("BASE_SETTINGS").DefaultView
 dvDataview.RowFilter = "SETTING_DESCRIPTION = 'REQUIRED' OR SETTING_DESCRIPTION = 'REQUIRED_W_DEFAULT'"
 dvDataview.Sort = "SETTING_DESCRIPTION, SETTING_NAME"
 'Create a temporary table so Station_Code can be added
 dtTempTable = dvDataview.ToTable.Copy
 'Loop through temp table
 For Each drRow In dtTempTable.Rows
     'Assign the stationcode to the new project station code
      drRow.Item("STATION_CODE") = m_ProjCode
      drRow.EndEdit()
      m_dstBaseSettings.Tables("BASE_SETTINGS").Rows.Add(drRow) ****ERROR HERE "Row already belongs to another table"

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