How to insert data in Oracle table with virtual columns?

I have a .Net application that loads a datatable from an oracle Database. The table contains a virtual column.

When I'm inserting a new row in datatable, it says :

Insert INSERT operation disallowed on virtual columns

I do understand this error but I don't know how to skip the virtual columns when saving data back to the database.

Here is my code :

    Dim Command As OracleCommand
    Dim TempDataAdapter As OracleDataAdapter
    Dim DataSet = new DataSet
    Dim Name = "MyTable"
    Dim TempDataAdapter As OracleDataAdapter
    Dim DataTable as DataTable

    'The connection is defined somewhere else...
    Command = New OracleCommand("MyTable", Me.Connection) 
    Command.CommandType = CommandType.Text

    TempDataAdapter = New OracleDataAdapter(Command)

    'Fill the table from the database 
    TempDataAdapter.FillSchema(DataSet, SchemaType.Source, Name)
    DataTable = DataTable = DataSet.Tables(0)           

And the code for saving data back to database :

    TempDataAdapter.Update(DataTable)

After the creation of the datatable, I tried deleting the virtual column from the datatable : DataTable.Columns.Remove(DataTable.Columns("MyVirtualColumn"))

But when saving data back to the database, it returns the same error.

Can anyone help please ?

Cheers,

If you are not trying to populate or query the virtual column, can you create a view on that table that excludes the virtual column and work with that view.