datagrid cells - limiting data entry length

I am trying to find a simple way to limit the length of data entered into datagrid cells. I am using adodc's and recordsets, but no database (reading a binary file). I would like to limit the different columns to specific lengths - either at design time or in the code.

Does anyone have any experience with this? Is the problem related to the fact that I have no db schema to tell the data control what the field lengths should be?

Thanks,

JTE

also stuck with grids can i click on a cell in my grid and edit it then save itcan this be done??????