Editing calculation instructions for derived attributes for JET transformations

You can modify the calculation instructions for derived attributes.

You must have a transformation model file open. A transformation model file has the name transform.tma. You must have at least one derived attribute defined in the transformation input schema.

To edit the calculation instructions for derived attributes:

In the editor area, in the Transformation input schema and output actions pane, click the derived attribute to modify.
In the Properties view, expand Action Parameters. If the Properties view is not open, right-click the derived attribute; then click Show Properties View.
In the Calculation row for the derived attribute, click the Value column.
Edit the calculation.
Click File > Save.

The calculation instructions that you edit appear in the main.jet file the next time that you run the Update Project command.

Note: If a derived attribute calculation is more complex, or requires values calculated by other JET tags, you can also edit the main.jet file directly. In the Project Explorer view, double-click the main.jet file.