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