Verfügbarkeit: ADO.NET examples and best practices for C# programmers

ADO.NET examples and best practices for C# programmers:

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Bibliographische Detailangaben
1. Verfasser:	Vaughn, William R. (VerfasserIn)
Format:	Buch
Sprache:	English
Veröffentlicht:	New York Beta V Corp. 2002
Schlagworte:	C sharp ADO.NET
Online-Zugang:	Inhaltsverzeichnis
Beschreibung:	XXII, 358 S. Ill. 1 CD-ROM (12 cm)
ISBN:	1590590120

Internformat

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Datensatz im Suchindex

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adam_text	CONTENTS ACKNOWLEDGMENTS .................................................................................................XIII ABOUT THE AUTHORS .............................................................................. ................XV INTRODUCTION ........................................................................................................XIX CHAPTER 1 INTRODUCING ADO.NET .......................................................1 HOW WE GOT HERE .............................................................................. ......................2 WHAT DO THESE CHANGES MEAN? ........................................................................5 ADO.NETA NEW BEGINNING .............................................................................. ....7 COMPARING ADOC AND ADO.NET ......................................................................8 UNDERSTANDING ADO.NET INFRASTRUCTURE ......................................................9 UNDERSTANDING ADO.NETS DISTRIBUTED ARCHITECTURE ....................................10 A BRIEF LOOK AT XML .............................................................................. ............11 ADO.NETTHE FUNDAMENTALS .......................................................................12 ADO.NET .NET DATA PROVIDERS ........................................................................15 LEVERAGING EXISTING COM-BASED ADO CODE ..................................................17 CREATING DATASETS FROM ADOC RECORDSET OBJECTS .........................................19 HOW COM INTEROP AFFECTS .NET APPLICATIONS ................................................19 ADO.NET AND DISCONNECTED DATA STRUCTURES ...........................................20 THE SYSTEM.DATA NAMESPACE ............................................................................21 THE ADO.NET DATASET OBJECT .........................................................................22 DESCENDING THE SYSTEM.DATA NAMESPACE TREE .............................................26 INSTANTIATING SYSTEM.DATA OBJECTS .................................................................30 INTRODUCING THE ADO.NET DATAADAPTER .........................................................31 ADO.NETS LOW-LEVEL DATA STREAM ...............................................................36 VII CHAPTER 2 ADO.NETGETTING CONNECTED ......................................39 ADO.NET .NET DATA PROVIDERS ........................................................................40 CHOOSING THE RIGHT PROVIDER ............................................................................41 CREATING ADO.NET CONNECTION OBJECTS ......................................................42 USING CONSTRUCTORS IN DECLARATIONS ................................................................43 BUILDING AN ADO.NET CONNECTIONSTRING .......................................................44 CONNECTING VIA THE SQLCLIENT .NET DATA PROVIDER ............................51 INTRODUCING SYSTEM.DATA.SQLCLIENT ...............................................................51 EXAMINING THE CONNECTION OBJECT PROPERTIES ...............................................53 EXAMINING CONNECTION OBJECT METHODS ........................................................55 SINKING CONNECTION OBJECT EVENTS .................................................................56 MANAGING TRANSACTIONS .............................................................................. .......59 CONNECTING WITH THE ODBC .NET DATA PROVIDER .....................................59 USING THE ODBC .NET DATA PROVIDER ...............................................................60 MANAGING THE ODBC.CONNECTION OBJECT .........................................................61 ODBC CONNECTION STRINGS .............................................................................. .64 OPENING ADO.NET CONNECTIONS IN CODE ......................................................65 USING THE IDE TO GET CONNECTED .................................................................66 ADDING CONNECTIONS .............................................................................. ...........66 CLOSING CONNECTIONS .............................................................................. ...........68 MANAGING THE ADO.NET GARBAGE COLLECTOR ...................................................68 CONNECTION INFORMATION AND SECURITY ...........................................................69 ADO.NET CONNECTION POOLING ........................................................................71 OLEDB AND ODBC CONNECTION POOLING ............................................................75 DEBUGGING THE CONNECTION POOL .....................................................................75 COM-BASED ADO AS A .NET DATA PROVIDER ..................................................75 INSTANTIATING YOUR ADOC NAMESPACE .............................................................76 CHAPTER 3 ADO.NET COMMAND STRATEGIES ...................................79 UNDERSTANDING ADO.NET COMMANDS .................................................................79 INTRODUCING ADO.NET PARAMETER QUERIES .....................................................82 EXECUTING AD HOC QUERIES USING ADO.NET ...................................................84 CONSTRUCTING SQL FOR YOUR QUERY ...................................................................85 CREATING A DATASET WITH THE IDE ......................................................................98 USING DRAG-AND-DROP WITH THE IDE ..............................................................102 MANAGING PARAMETER QUERIES ........................................................................111 MANAGING MULTIPLE-TABLE QUERIES ................................................................116 MANAGING STORED PROCEDURE QUERIES ............................................................121 MANAGING MULTIPLE-RESULTSET QUERIES ..........................................................129 EXPLORING THE COMMAND EXECUTE METHODS .................................................133 BINDING TO RESULTSET COLUMNS ...................................................................136 CONTENTS VIII CHAPTER 4ADO.NET DATAREADER STRATEGIES .........................141 COMPARING ADOC WITH ADO.NET ......................................................................142 UNDERSTANDING THE DATAREADER ...................................................................144 USING THE DATAREADER GET METHODS TO RETRIEVE DATA .....................151 USING GETVALUES TO FETCH A ROW ....................................................................154 CLEANING UP AFTER YOUR DATAREADER ........................................................155 CHAPTER 5 USING THE DATATABLE AND DATASET ....................157 UNDERSTANDING THE DATASET AND DATATABLE STRUCTURE .....................159 TYPED VERSUS UNTYPED DATASETS ....................................................................161 IMPORTING ADOC RECORDSETS ..........................................................................168 COMPARING ADOC RECORDSETS AND DATATABLE OBJECTS ................................169 BUILDING DATATABLES .............................................................................. .........172 BUILDING DATATABLES WITH THE CONSTRUCTOR ...................................................173 BUILDING DATATABLES USING THE DATAADAPTER FILL METHOD ...........................173 BUILDING DATATABLE OBJECTS WITHIN A DATASET ..............................................177 USING FILLSCHEMA TO RETRIEVE DDL ................................................................180 ACCESSING DATATABLE DATA ............................................................................18 1 ACCESSING THE DATACOLUMNCOLLECTION (COLUMNS) .......................................182 UNDERSTANDING THE DATAROW OBJECT .............................................................187 ACCESSING THE DATAROWCOLLECTION (ROWS) ....................................................187 TESTING FOR RESULTS .............................................................................. ............191 ACCESSING DATASET DATA .............................................................................. ..194 POSITIONING THE CURRENT ROW POINTER ............................................................195 BINDING TO DATASETS .............................................................................. .........196 CHAPTER 6 FILTERING, SORTING, AND FINDING ....................197 FILTERING AND SORTING WITH THE SELECT METHOD ...............................198 SORTING WITH THE SELECT METHOD .....................................................................199 FILTERING ON ROWSTATE AND VERSION ................................................................205 FILTERING AND SORTING WITH THE DATAVIEW OBJECT ............................205 SETTING DATAVIEW FILTER PROPERTIES ................................................................206 CREATING DATAVIEW OBJECTS WITH VISUAL STUDIO ............................................210 UPDATING A DATAVIEW .............................................................................. .......210 WORKING WITH THE DATAVIEWMANAGER ...........................................................211 THE DEFAULTVIEWMANAGER PROPERTY ..............................................................212 USING THE FIND METHODS .............................................................................. ..212 THE ROWS COLLECTION FIND METHOD ................................................................213 THE DATAVIEW OBJECTS FIND METHOD ............................................................216 THE ROWS COLLECTION CONTAINS METHOD ........................................................219 CONTENTS IX CHAPTER 7 ADO.NET UPDATE STRATEGIES ....................................221 CHANGING DATATHE FUNDAMENTALS ...............................................................223 ADDRESSING THE VALUE PROPERTY WITH UNTYPED DATASETS ...............................223 ADDRESSING THE VALUE PROPERTY WITH TYPED DATASETS ...................................224 CREATING NEW DATAROWS .............................................................................. ..224 DELETING DATASET ROWS .............................................................................. .....226 UNDOING* A DELETE OPERATION ......................................................................227 POSTPONING CONSTRAINT ENFORCEMENT ............................................................228 USING BEGINEDIT .............................................................................. ................228 DATA VALIDATION .............................................................................. .................229 CHECKING ROWSTATE .............................................................................. ..........233 UPDATE STRATEGIES .............................................................................. .............238 CREATING UPDATABLE DATASETS ........................................................................239 USING THE COMMANDBUILDER CLASS ................................................................240 USING VISUAL STUDIO TO GENERATE ACTION QUERIES ............................251 REVIEWING THE GENERATED STORED PROCEDURES ..............................................251 REVIEWING THE GENERATED CODE .....................................................................254 RETRIEVING AUTONUMBER, IDENTITY, OR GUIDS ......................................258 UNDERSTANDING THE UPDATE METHODS ...........................................................262 UPDATE PERFORMANCE .............................................................................. ...........264 ANOTHER APPROACH TO BULK INSERTS: USE XML ...............................................265 UPDATING THE AUTHORS TABLE*AN EXAMPLE ................................................266 WORKING WITH AN UPDATABLE DATAGRID CONTROL ............................................268 SHOWING THE AVAILABLE DATA VERSIONS ............................................................268 SHOWING THE ROW COUNTS .............................................................................. .270 USING GETCHANGES TO MANAGE MODIFIED ROWS .............................................272 UPDATE EXCEPTION HANDLING STRATEGIES ..................................................273 USING THE CONTINUEAFTERERROR PROPERTY ........................................................274 WHAT TO DO WHEN AN UPDATE FAILS ................................................................276 HANDLING UPDATE METHOD EXCEPTIONS ........................................................277 CODING THE UPDATE DBCONCURRENCYEXCEPTION TRAP ...................................279 EXECUTING AD HOC QUERIES TO PERFORM UPDATES ...................................280 MERGING AND TRANSPORTING DATA .................................................................281 CHAPTER 8 ADO.NET CONSTRAINT STRATEGIES .........................283 UNDERSTANDING .NET CONSTRAINTS ...............................................................283 HOW ADO.NET IMPLEMENTS CONSTRAINTS ......................................................285 MANAGING THE CONSTRAINTS COLLECTION ...........................................................286 IMPLEMENTING UNIQUE CONSTRAINTS ...............................................................287 IMPLEMENTING FOREIGN KEY CONSTRAINTS .......................................................289 UNDERSTANDING PARENT/CHILD PRIMARY KEY/FOREIGN KEY RELATIONSHIPS .....292 USING THE FILLSCHEMA METHOD .......................................................................294 CREATING DATARELATION OBJECTS .................................................................295 CONTENTS X CHAPTER 9 ADO.NET EXCEPTION MANAGEMENT STRATEGIES ..301 STRUCTURED EXCEPTION HANDLING .................................................................302 UNDERSTANDING TRY/CATCH .............................................................................. 303 TRY/CATCH SYNTAX .............................................................................. ...............303 STANDARD EXCEPTIONS .............................................................................. ........303 VARIABLE SCOPE IN TRY/CATCH BLOCKS ...............................................................305 EXCEPTIONS THAT FIRE OUTSIDE OF TRY/CATCH SCOPE ........................................305 NESTING EXCEPTION HANDLERS ..........................................................................305 TRAPPING SPECIFIC VS. GENERAL EXCEPTIONS .........................................306 THE SYSTEM.DATA EXCEPTIONS ........................................................................306 THE SQLEXCEPTION CLASS ..................................................................................308 THE SQLERROR CLASS .............................................................................. ............310 THE OLEDBEXCEPTION CLASS ............................................................................31 0 DISPLAYING THE ERROR MESSAGE ...................................................................311 CHAPTER 10 ADO.NET AND XML ..............................................................313 XML SUPPORT IN ADO.NET .............................................................................. ..314 STANDARDIZING ON XML FORMATS ...................................................................315 UNDERSTANDING XML AND DATASET OBJECTS ................................................316 IMPORTING DATASET DATA FROM AN XML DOCUMENT ......................................316 WHAT ARE DIFFGRAMS? .............................................................................. ........319 MERGING XML DATA WITH YOUR DATASET .........................................................321 FETCHING AND SAVING DATASET OBJECTS AS XML ..............................................321 LOADING SCHEMA FROM XML ...........................................................................324 PERSISTING XML SCHEMA .............................................................................. ...325 CREATING A WEB SERVICE AS AN XML DATA SOURCE ................................326 PASSING AN UPDATED DATASET BACK TO A WEB SERVICE ........................336 CREATING CUSTOM EXCEPTION HANDLERS ......................................................341 ADO.NET AND SOAP .............................................................................. ................342 APPENDIX WORKING WITH THE BIBLIO SAMPLE DATABASE ...........................................343 INDEX .............................................................................. ......................................345 CONTENTS XI
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title	ADO.NET examples and best practices for C# programmers
title_auth	ADO.NET examples and best practices for C# programmers
title_exact_search	ADO.NET examples and best practices for C# programmers
title_full	ADO.NET examples and best practices for C# programmers William R. Vaughn with Peter Blackburn
title_fullStr	ADO.NET examples and best practices for C# programmers William R. Vaughn with Peter Blackburn
title_full_unstemmed	ADO.NET examples and best practices for C# programmers William R. Vaughn with Peter Blackburn
title_short	ADO.NET examples and best practices for C# programmers
title_sort	ado net examples and best practices for c programmers
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topic_facet	C sharp ADO.NET
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