I have encountered a situation where supposedly a function returning a 
datatable does not always clear the datatable before loading.  This is 
according to a client, but I have not been able to verify that this is 
indeed what is happening ... client evidence seems to indicate this "type" 
of problem.

For example,

Dim dtMast As New dsMaster.MastDataTable

For each drSetup in dtSetup

   dtMast = CreateTimeLine(drSetup.UniqueID, dtTemp1, dtTemp2)

Next

--------------

public function CreateTimeLine(...) as dsMaster.MastDataTable

   Dim dtMast As dsMaster.MastDataTable
   dtMast = New dsMaster.MastDataTable
     :
     :
   return dtMast

end function

--------------

Shouldn't the "dtMast = CreateTimeLine(drSetup.UniqueID, dtTemp1, dtTemp2)" 
always create a new dtMast such that all of the rows in the table are 
cleared when the CreateTimeLine is called each time in the loop?

In walking through it in the debugger (VS 2003 Framework 1.1) it exhibits 
that behavior each and every time (i.e., the data from the prior loop is NOT 
in the database table), but has anyone encountered a situation where this 
does not occur with each function call ... essentially creating a table with 
rows from the last two loops instead of rows from just the latest?

Thanks

RonF