>i am using the following line of code in my combo box to filter
>out the materials i will be using in my table i call the material
>mat. the line of code i am using in the afterRowColchange of my
>grid:
>lcFilter = [Set Filter To mat="] + mat + ["]
>&lcFilter
>
>This code works fine, and I know how to use the filters
>on tables. I don't understand what the brackets, quote and plus
>[+"] symbols are doing.

The [] are also used to identify strings.
When dealing with close parens when building strings its easier than
+ '"'
or
+ "'"