SWT: A Developer's Notebook

Setting the Maximum Length for Entries

Since the SWT.DROP_DOWN-style combo has an editable text field into which the user can enter data, it is useful to be able to set a limit on the number of characters of text that may be entered. As discussed in the context of the Text class in Chapter 5, this is sometimes necessary to prevent database errors if the text entered is used to insert or update records in a database.

How do I do that?

As with the Text class, the following code will set a limit on entry:

c.setTextLimit(25);