I am trying to put filter on datatable name in dropdown, for which i need list of datatable in my analysis page. How to list down all datatables name so that i can select them in drop down and then show data specific to data table in tabular view.

```
import Spotfire.Dxp.Data.DataTable
from Spotfire.Dxp.Data import *

dataTable = Document.Data.Tables['dataTableName']

for column in dataTable.Columns:
    print column

```

Above gives me column for the data table name i supply, but what i need is list of datatables and then put them into dropdown filter to select specific data table.