Developer’s Guide Borland Delphi 7 for Windows PHẦN 6 potx

... automatically added to the form’s or data module’s type declaration. 6 Place code that calculates values for the field in the OnCalcFields event handler for the dataset. For more information about writing ... Francisco’’’; AddressQuery.Open; CustomerAddressRef.Assign(AddressQuery.Fields[0]); end; Using the Borland Database Engine 26- 1 Chapter 26 Chapter 26 Using the Borland...

Ngày tải lên: 12/08/2014, 09:21

... using a wizard. For that information, refer to your Microsoft Developer’s Network (MSDN) documentation or search the Microsoft Web site for ActiveX information. 45-12 Developer’ s Guide Creating ... Internet Explorer ignores all but the first. For more information, look for Licensing ActiveX Controls on the Microsoft Web site. 46- 2 Developer’ s Guide Understanding transactio...

Ngày tải lên: 12/08/2014, 09:21

... . . 26- 54 27. 1 ADO components. . . . . . . . . . . . . . 27- 2 27. 2 Connection parameters . . . . . . . . . . 27- 4 27. 3 ADO connection modes . . . . . . . . . . 27- 6 27. 4 Execution options for ... . . . 26- 8 26. 4 Database-related informational methods for session components . . . . 26- 27 26. 5 TSessionList properties and methods. . . . . . . . . . . . . . . . . . . 26-...

Ngày tải lên: 12/08/2014, 09:21

... doing cross- platform development, not one package using $IFDEFs. • In general, use $IFDEF MSWINDOWS to test for any Windows platform including WIN32. Reserve the use of $IFDEF WIN32 for distinguishing ... distinguishing between specific Windows platforms, such as 32-bit versus 64 -bit Windows. Don’t limit your code to WIN32 unless you know for sure that it will not work in WIN...

Ngày tải lên: 12/08/2014, 09:21

... This information is different for each type of connection component: • For information about describing a BDE-based connection, see “Identifying the database” on page 26- 14. • For information ... generates a BeforeDisconnect event, where you can perform any cleanup before the connection closes. For example, you can use this event to cache information about all open datasets befor...

Ngày tải lên: 12/08/2014, 09:21

... of any items it contains. • TQueryForm, which generates an HTML form for displaying or reading application-defined values. For example, you can use this form for displaying and submitting parameter ... a transformation file that indicates how to transform an XML document into a data packet, you can create data packets for any XML document that conforms to the schema used in the t...

Ngày tải lên: 12/08/2014, 09:21

... resource management supplied by Microsoft Transaction Server (MTS) (for versions of Windows prior to Windows 2000) or COM+ (for Windows 2000 and later). These objects are designed to work in a ... later. For now, consider the port number a numeric code for the service. If you are implementing a standard service for use in cross-platform applications, Linux socket objects pr...

Ngày tải lên: 12/08/2014, 09:21

... trillion and requires 8 bytes of storage, whereas smallmoney holds only values of –214 ,74 8. 364 8 through 214 ,74 8. 36 47 and requires only 4 bytes of storage. Functionally, these types are similar to decimal ... string of 32 random characters in blocks separated by hyphens. For example, the following is a valid GUID: 45E8F4 37- 67 0 D-4409-93CB-F9424A40D6EE Why would you use a uniquei...

Ngày tải lên: 31/03/2014, 21:22

... roll. Book V: Windows 7 and the Internet 460 Book IV Chapter 6 Setting Up Media Center 435 Beyond the Basics Figure 6- 8: Don’t send Microsoft any information that makes you feel uncomfort- able. ... Browsers 461 Exploring Internet Explorer Alternatives: Firefox and Chrome 461 Ready, Set, Browse! 464 Thwarting Phishers 479 Saving and Printing Web Pages 483 Playing Fa...

Ngày tải lên: 13/08/2014, 04:21