I have a code block like below
+++++++++++++++++++++++++++++++++++++++
thisform.AddProperty("loCursor")
thisform.loCursor = newobject("CursorAdapter")
lcConnString = 'driver=SQL Server;server=(local);database=Northwind;trusted_connection=yes'

with thisform.loCursor
.BufferModeOverride = 5
.Alias = 'Customers'
.DataSourceType = 'ODBC'
.DataSource = sqlstringconnect(lcConnString)
text to .SelectCmd noshow
select CustomerID, CompanyName, ContactName from Customers
endtext
.KeyFieldList = 'CustomerID'
.Tables = 'Customers'
.UpdatableFieldList = 'CustomerID, CompanyName, ContactName'
.UpdateNameList = 'CustomerID Customers.CustomerID,CompanyName Customers.CompanyName, ContactName Customers.ContactName'
.CursorFill()
endwith

select customers
go top
replace customers.companyname with "Alfreds"

if !tableupdate(2,.t.,thisform.loCursor.alias)
=aerror(laerror)
display memory like laerror
endif
++++++++++++++++++++++++++++++++++++++++++++++++++++++
I can not update data via tableupdate() and
laerror(1,1) return 1526,
laerror(1,4) return "S0002"
laerror(1,5) return 208

has any body give me any idea ?

Thanks