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There are two methods to add controls to a form; by data element or by control type.
The most common method is by data element. Adding a data element will automatically use the appropriate type of control.
A database field can only be used once on a form. When a data element is used in a control it is automatically flagged as having been used in the “Database Fields” list.
If the control using the field is removed from the form layout the “used” flag is automatically cleared.
In some cases, the Control Type method must be used. This method is used specifically for Section Title, File Upload, and Button controls. It is also used in cases where new columns are added to the underlying database after the form is initially created and associated with the table.
Once a control has been added to a form it may be necessary to move it to another location.
A control can be removed from the form as needed. Note that this action simply removes the control from the form layout. The underlying data structure is not affected.