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For detailed instructions, see page 21. 2 Use the Object Inspector to change the form’s Name property to EdCustForm, change the TTable component’s Name property to Cust, and change the TTable component’s Active property to True. S phone numbers (example: 808-555-0269). 3 In this form’s CreateForm procedure, change Table1 to Cust. 40 Database Application Developer’s Guide 4 Open the Fields Editor by double-clicking the TTable component. By default, the list of fields is empty. 5 Click Add to open a dialog box listing the fields in the Customer table.

For more information For more information about • Data sets, the Fields Editor, and TField components, see “Using TFields and the Fields Editor” on page 79. • Using the Database Form Expert, see page 21. Setting Tfield properties at design time Because they are invisible, the only way to set the properties of TField components at design time is by using the Fields Editor. The following example shows how to set the properties of a TField component at design time. DB in a grid. For detailed instructions, see page 21.

2 Double-click the TTable component named Orders to open the Fields Editor. 3 In the Fields Editor’s list of fields, click SaleDate, then use the Object Inspector to view the events of the TDateTimeField component named OrdersSaleDate. 4 Double-click the OnValidate event to open the code window, then add code to handle the OnValidate event as follows. Create('Cannot enter a future date'); end; How it works To check field values after the user enters them, write code to handle the OnValidate event of the appropriate TField component.

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