Visual Basic.NET How to Program (PDF)

XXVIII Illustrations
16.36 Peedy calculating the total. 737
16.37 Microsoft Agent demonstration. 738
16.38 GUI for eight queens exercise. 751
17 Files and Streams
17.1 Data hierarchy. 755
17.2 Visual Basic’s view of an n-byte file. 756
17.3 File class methods (partial list). 757
17.4 Directory class methods (partial list). 758
17.5 FrmFileTest class tests classes File and Directory. 759
17.6 FrmFileSearch class uses regular expressions to determine file types. 762
17.7 FrmBankUI class is the base class for GUIs in our
file-processing applications. 767
17.8 CRecord class represents a record for sequential-access file-processing
applications. 770
17.9 FrmCreateSequentialAccessFile class creates and writes
to sequential-access files. 772
17.10 Sample data for the program of Fig. 17.9. 779
17.11 FrmReadSequentialAccessFile class reads sequential-access files. 779
17.12 FrmCreditInquiry class is a program that displays credit inquiries. 783
17.13 Random-access file with fixed-length records. 790
17.14 CRandomAccessRecord class represents a record for
random-access file-processing applications. 791
17.15 FrmCreateRandomAccessFile class create files for
random-access file-processing applications. 794
17.16 FrmWriteRandomAccessFile class writes records to r
andom-access files. 798
17.17 FrmReadRandomAccessFile class reads records from
random-access files sequentially. 802
17.18 CTransaction class handles record transactions for the
transaction-processor case study. 808
17.19 FrmTransactionProcessor class runs the
transaction-processor application. 812
17.20 FrmStartDialog class enables users to access dialog
boxes associated with various transactions. 813
17.21 FrmNewDialog class enables users to create records in
transaction-processor case study. 816
17.22 FrmUpdateDialog class enables users to update records
in transaction-processor case study. 819
17.23 FrmDeleteDialog class enables users to remove records
from files in transaction-processor case study. 825
17.24 Inventory of a hardware store. 832
18 Extensible Markup Language (XML)
18.1 XML used to mark up an article. 834
18.2 article.xml displayed by Internet Explorer. 837
18.3 XML to mark up a business letter. 837