Problem using querymode after modifying dddw allowedit property

Hi,

I have a strange issue that I am unable to solve and wondered if anyone has any ideas.

My application uses querymode heavily. In most screens we have dddw objects that have allowedit set to No. When placing a datawindow into querymode we loop through each dddw field and set the allowedit property to Yes to enable it to be used for querying. When coming back out of querymode we then set them back to allowedit = No.

Here is the generic code I use to place datawindows in and out of querymode:

string s_desc,s_colname,s_allowedit

long l_col,l_cnt

s_desc = dw_query.describe("datawindow.querymode")
choose case s_desc
     case "no","No"
          //set dddw columns to allowedit
          l_col = long(dw_query.describe("datawindow.column.count"))
          FOR l_cnt = 1 to l_col
               s_desc = "#" + string(l_cnt) + ".name"
               s_colname = dw_query.describe(s_desc)
               s_desc = dw_query.describe(s_colname + ".DDDW.Name")
               if s_desc <> "?" then
                    s_allowedit = dw_query.describe(s_colname + ".DDDW.AllowEdit")
                    choose case s_allowedit
                         case "no","No"
                              dw_query.modify(s_colname + ".DDDW.AllowEdit=Yes")
                         end choose
               end if
          NEXT
          //put the datawindow into querymode
          dw_query.Modify("DataWindow.Table.Sort=''")
          dw_query.modify("datawindow.querysort=Yes")
     case "yes","Yes"
          //retreive based on user query
          dw_query.event ue_retrieve()
          //take the datawindow out of querymode
          dw_query.modify("datawindow.querymode=No")
          //set dddw columns back to allowedit = No
          l_col = long(dw_query.describe("datawindow.column.count"))
          FOR l_cnt = 1 to l_col
               s_desc = "#" + string(l_cnt) + ".name"
               s_colname = dw_query.describe(s_desc)
               s_desc = dw_query.describe(s_colname + ".DDDW.Name")
               if s_desc <> "?" then
                    s_allowedit = dw_query.describe(s_colname + ".DDDW.AllowEdit")
                    choose case s_allowedit
                         case "yes","Yes"
                              dw_query.modify(s_colname + ".DDDW.AllowEdit=No")
                         end choose
               end if
end choose

The first time you run the retrieve like this it works ok, however, on any subsequent retrieves I get an incorrect syntax error - "Incorrect syntax near 'VERSION'"

Looking at the sqlpreview event, this seems to be caused by the select statement now being in PBSELECT format.

Sqlsyntax in sqlpreview is like this on first retrieve in querymode:

SELECT Bill_exasxcode.asxcode , Bill_exasxcode.appdate , Bill_exasxcode.closedate , Bill_exasxcode.instime , Bill_exasxcode.usrname , Bill_exasxcode.bexasxno , Bill_exasxcode.clsite FROM Bill_exasxcode WHERE (((Bill_exasxcode.asxcode = 'property')))

Then like this in subsequent retrieves:

PBSELECT( VERSION(400) TABLE(NAME="Bill_exasxcode" ) COLUMN(NAME="Bill_exasxcode.asxcode") COLUMN(NAME="Bill_exasxcode.appdate") COLUMN(NAME="Bill_exasxcode.closedate") COLUMN(NAME="Bill_exasxcode.instime") COLUMN(NAME="Bill_exasxcode.usrname") COLUMN(NAME="Bill_exasxcode.bexasxno") COLUMN(NAME="Bill_exasxcode.clsite") EXP2 = "(not sorted))" EXP2 = "(not sorted))" EXP2 = "(not sorted))" EXP2 = "(not sorted))" EXP2 = "(not sorted))" EXP2 = "(not sorted))" EXP2 = "(not sorted))" EXP2 = "(not sorted))" EXP2 = "(not sorted))" EXP2 = "(not sorted))" EXP2 = "(not sorted))" EXP2 = "(not sorted))" WHERE(EXP1 = "(((Bill_exasxcode.asxcode" OP = "=" EXP2 = "'property')))") )

If I remove the code to set allowedit back to No I don't get this issue.

Am I missing something in my code or is this a bug? 

Does anyone have any ideas on fixing this. Can I convert the PBSELECT syntax to standard sql syntax somehow?

FYI - I am using PB 12.6 classic, connecting to SQL Server 2012 using SNC ODBC.

Thanks

Gordo