Tibco spotfire; Refresh tables under conditions using ironpython - properties

Question

I wrote the following script in order to refresh tables under specific conditions.
I have created a document property under the name "lob".
Some tables will be refreshed according to lob's value, while othes will be refreshed despite lob's value.
Please note that some tables may not be refreshed at all. That's the reason for begging my script with data's deletion from every single table and then refreshing.
Moreover, i have created a document property under the name "PIAreadyToDisplay". This property equals "No" while tables are being refreshed. When the table's refresh is finished, the document property equals to "Yes".
It seems that tables are refreshing according my needs but the document property "PIAreadyToDisplay" does not work as it should.
Do you find any mistake in my script?
Thank you in advance for your reply.
**Script**
Document.Properties["PIAreadyToDisplay"] = "No"
import clr
from Spotfire.Dxp.Data import RowSelection, IndexSet
MyTable = Document.Data.Tables["In Force"]
MyTable.RemoveRows(RowSelection(IndexSet(MyTable.RowCount,True)))
MyTable = Document.Data.Tables["ACP_IF"]
MyTable.RemoveRows(RowSelection(IndexSet(MyTable.RowCount,True)))
MyTable = Document.Data.Tables["NAYO_IF"]
MyTable.RemoveRows(RowSelection(IndexSet(MyTable.RowCount,True)))
MyTable = Document.Data.Tables["In Force"]
MyTable.RemoveRows(RowSelection(IndexSet(MyTable.RowCount,True)))
MyTable = Document.Data.Tables["pol_start_dt"]
MyTable.RemoveRows(RowSelection(IndexSet(MyTable.RowCount,True)))
MyTable = Document.Data.Tables["Policy_Info_Fire_append_non_fire"]
MyTable.RemoveRows(RowSelection(IndexSet(MyTable.RowCount,True)))
MyTable = Document.Data.Tables["policy_info_covers_mani"]
MyTable.RemoveRows(RowSelection(IndexSet(MyTable.RowCount,True)))
MyTable = Document.Data.Tables["Intermediaries"]
MyTable.RemoveRows(RowSelection(IndexSet(MyTable.RowCount,True)))
MyTable = Document.Data.Tables["Policy_Info_HH _with_Descriptions"]
MyTable.RemoveRows(RowSelection(IndexSet(MyTable.RowCount,True)))
MyTable = Document.Data.Tables["Policy_info_Companies_with_descriptions"]
MyTable.RemoveRows(RowSelection(IndexSet(MyTable.RowCount,True)))
MyTable = Document.Data.Tables["policy_multiple_Usages"]
MyTable.RemoveRows(RowSelection(IndexSet(MyTable.RowCount,True)))
import clr
from System.Collections.Generic import List, Dictionary
from Spotfire.Dxp.Data import DataTable
from Spotfire.Dxp.Framework.ApplicationModel import NotificationService
--- Empty list to hold DataTables
Tbls = List[DataTable]()
str1 = Document.Properties["lob"] ;
str2 = "5049242";
if (str2 in str1)==True:
Tbls.Add(ACP)
str3 = "5049234";
if (str3 in str1)==True:
Tbls.Add(NAYO_IF)
str4 = "Πυρός";
if (str4 in str1)==True:
Tbls.Add(house)
Tbls.Add(companies)
Tbls.Add(use)
Tbls.Add(polstart)
Tbls.Add(interm)
Tbls.Add(covers)
--- Notification service
notify = Application.GetService[NotificationService]();
--- Execute something after tables are loaded
def afterLoad(exception, Document=Document, notify=notify):
if not exception:
Document.Properties["PIAreadyToDisplay"] = "Yes"
else:
notify.AddErrorNotification("Error refreshing table(s)","Error details",str(exception))
--- Refresh table(s)
Document.Data.Tables.RefreshAsync(Tbls, afterLoad)

Answer 1

Solved
In order to show the value of document property "PIAreadyToDisplay":
I inserted an text area I inserted a label - property control.
In order to do that, i selected a table in the "Data" field and i
selected my document property in the "Values" field. When the table
(of step 2) was not refreshed, document property's value was not
changed.
In step 2, i selected a table which will always have been refreshed.