The Check box control type allows you to insert a box that can be checked on or off so that the field shows True (Yes or 1) or False (No or 0). Typically you use this control type when you insert a blank formula field into your document and you want to use it to indicate that some other field has or has not a certain value. Alternatively you may insert a database field, say of customer names from a database table, and want to indicate that you will contact them over the next month (e.g. when checked the check box displays Yes) or not (e.g. when unchecked the check box displays No).
In addition to the True, Yes, 1 and False, No, 0 values, there are also available @Empty and @Not Empty. Set these in the Checked and Unchecked boxes (selecting the type of check in one of these will automatically select the opposite check in the other) after selecting the Check box control type. You should then type in the display value in the Display choices box.
For example, if you want to insert a blank field with check box control type into your document, so that it will display True when checked and False when unchecked, follow these steps:
Select Field from the Insert menu to go into the "Insert Field Wizard"
Select Formula in the Field Type box
Leave the Formula box empty
Select Checkbox in the Control Type box
Click on the arrow to select True,Yes,1 in the Checked box (the Unchecked box will automatically show False,No,0)
Type in the Display choices:
True in the Checked line
False in the Unchecked line
Click on Finish to return to your document
To activate the inserted field, double-click on it. You are now free to switch the check box on or off by clicking on it. Click once outside the field to show the display value i.e. True if the check box is switched on.
See: