Tab controls allow you to easily create multi-page forms. Create a tab control by following these steps:
Special formatting that depends on the control's value can be added to text boxes, lists, and combo boxes. A default value can set along with up to three conditional formats. To add conditional formatting to a control element, follow these steps:
To modify a text box so each character appears as an asterisk as the user types in the information, select the text field in Design View and click Properties. Under the Data tab, click in the Input Mask field and then click the button [...] that appears. Choose "Password" from the list of input masks and click Finish. Although the user will only see asterisks for each character that is typed, the actual characters will be saved in the database.
If you decide the type of a control needs to be changed, this can be done without deleting the existing control and creating a new one although not every control type can be converted and those that can have a limited number of types they can be converted to. To change the control type, select the control on the form in Design View and choose Format|Change To from the menu bar. Select one of the control types that is not grayed out.
To select two fields for the composite primary key, move the mouse over the gray column next to the field names and note that it becomes an arrow. Click the mouse, hold it down, and drag it over all fields that should be primary keys and release the button. With the multiple fields highlighted, click the primary key button.