Entryfield component
Entryfield components create data-entry fields that accept any type of text input, including numeric values. You can link Entryfield components to any field type in a table, as long as you have on the form a Query object (or acceptable substitute) that includes the appropriate table. If you used the Form wizard to create the form, the data link is defined automatically.
Labels (that are Text components) are added along with the Entryfield (in the correct z order), unless you turned this feature off. You can assign a mnemonic to the Text component that will jump the user to the Entryfield component. (If you add your own labels using the Text component, the Text component must immediately precede the Entryfield in the z order.)
To link an Entryfield component to a field in a table,
Click the wrench tool beside the Entryfield's dataLink property.
From the DataLink Property Builder, select a Query object from the Type drop-down list and use the tool to select a field (which will then appear in the DataLink text box).
Click OK, and this field will be linked to your Entryfield component on the form.
You can constrain the types of data a user may enter into this field by setting the picture property.