You can define the data properties for an element.
Procedure
Place an element with data properties in the dialog.
Activate the Data tab in the Properties bar.
If an element is to be assigned values when you run a dialog by report, you need to enable the Report support check box on the Data tab for the element. If you want to use a single report for all dialog elements, you must use the element identifiers to pass on the values for the individual dialog elements.
In the Value column, define an initial value to specify whether the element is to be read-only or whether it is to be a mandatory input.
Click Save.
You have defined data properties for the element.