The Text box element has a label and is used for entering a single text line. The label can be deleted on the Display tab or by clearing the Has label check box. Inline editing is possible.
On the Data tab, you can specify whether the element is a mandatory field, is read-only, or is subject to voting. You can activate report support here, too. Enter the GUID of the relevant report in the Default ID of report field. If you do so, the data will be determined by report right before the dialog is displayed and will then be displayed in the dialog.
You can specify a validation. This means that the input in the dialog will be checked when a task is edited. The following validations are available:
Example code for the report support
Context.setProperty("375ade20-6ea5-11e6-1af0-504e43.value","This is my text.");