The simplest way to change the default behavior of table columns is to set the dgProp["default column behavior"] property of the data grid. You set this property to a button id whose script contains the behavior you would like the columns to have. Doing this overrides the default behavior provided by a button on the revDataGridLibrary stack.

set the dgProp["default column behavior"] of group "DataGrid" to the long id of button "My Custom Column Behavior" of stack "MyStack"

Here is an example of a FillInData command that takes a column value encoded as UTF-8 and sets the unicodetext of the column field.

To see the default column script the data grid uses enter the following in the message box:

edit script of button "Default Column" of stack "revDataGridLibrary"

Alternatively you can create your own custom column template for a particular column. This allows you complete control over the look and feel of the column. See the lesson on creating custom column templates.