See my reply to Fred.

Simon


>Like Fred, I also have no problem running that code. So, what version and service pack are you using?
>
>Alan
>
>>I had the following two properties set as follows:
>>
>>This.cWhereBase="PID=' '.Or.PID$This.cOpenNodes"
>>This.cWhereUser=".T."
>>
>>The following code fails with an error message (Function argument value, type or count is invalid.):
>>
>>Scan While .T. for Evaluate(This.cWhereBase+".And."+This.cWhereUser)
>>
>>However if I change This.cWhereUser as follows everything works fine:
>>
>>This.cWhereUser="1=1"
>>
>>In the first case in the debugger evaluate(This.cWhereUser) returns at character type expression of '.T.' when I expected a logical value.
>>
>>Is this a bug or just the way the evaluate function works? It seems like it did not evaluate the ".T."
>>
>>Thanks
>>Simon