ADO.NET Using Visual Basic 2005 Table of Contents

Transcription

1 Table of Contents INTRODUCTION...INTRO-1 Prerequisites...INTRO-2 Installing the Practice Files...INTRO-3 Software Requirements...INTRO-3 The Chapter Files...INTRO-3 About the Authors...INTRO-4 ACCESSING DATA WITH ADO.NET The ADO.NET Object Model ODBC DAO RDO and ODBCDirect ADO ADO.NET Connected and Disconnected Objects Connecting to Data Connection Strings The Using Block SQL Server Connections Microsoft Access Connections Understanding Connection Pooling Closing Connections Turning Off Connection Pooling Managing the Pool with SqlClient Using SQL Profiler to Monitor the Pool Using the Performance Monitor Using Provider Statistics LAB 1: ACCESSING DATA WITH ADO.NET Lab 1 Overview Creating OleDbConnection and SqlConnection Objects Using a Connection String Builder RETRIEVING DATA Introducing Command Classes Creating Command Objects TOC-1

2 Command Object Methods Working with Data Readers Retrieving Results Faster Retrieving Multiple Result Sets Retrieving Information about DataReader Schema Using a Reader that Retrieves Data from a DataTable Digging Deeper into Commands and DataReaders Calling a Stored Procedure or Saved Query Passing Parameters Managing Multiple Namespaces with One Procedure Calling a Stored Procedure with an Output Parameter Binding DataReaders in ASP.NET Filling the GridView Control Hooking Up the Data LAB 2: RETRIEVING DATA Lab 2 Overview Create a Windows Application Create a Web Application CACHING DATA IN DATASETS DataSets and DataTables DataSets Are Disconnected DataTables Populating a DataTable Defining DataTable Columns Adding Rows with the NewRow Method Binding a DataGrid to a DataTable Filling DataSets Using a DataAdapter DataAdapter Command Objects Filling a DataTable Using the Load Method Handling Multiple Result Sets Retrieving Schema Information DataColumns and Schema DataSets and XML Reading and Writing XML Data LAB 3: CACHING DATA IN DATASETS Lab 3 Overview TOC-2

3 Fill with DataAdapter Load with DataReader Fill from XML APPLYING CONSTRAINTS Primary Keys and Unique Constraints Merging DataSets Foreign Key Constraints Referential Integrity Column-Based Constraints AllowDBNull MaxLength Default Values LAB 4: APPLYING CONSTRAINTS Lab 4 Overview Primary Key and Unique Constraints Foreign Key Constraints DATA RELATIONS Creating DataRelations Creating Relationships in SQL Server Relations in ADO.NET The DataRelation Object Navigation Pathways GetChildRows GetParentRow Expressions and Relations Aggregate Calculated Expressions Lookup Expressions Specifying XML Nesting LAB 5: DATA RELATIONS Lab 5 Overview Create DataRelations Create Expressions UPDATING DATA Creating Commands with CommandBuilders Generating Commands TOC-3

4 Updating Data Using a Command Builder Creating Commands Specifying Parameters Updating with the DataAdapter Understanding DataRowVersion and RowState Using Stored Procedures Advantages of Stored Procedures Using Stored Procedures The Insert Stored Procedure The Delete Stored Procedure Adding New Customers with Stored Procedures Deleting Customers with Stored Procedures Performing Batch Updates Setting UpdateBatchSize LAB 6: UPDATING DATA Lab 6 Overview Update Data with a Custom Command View Modified Rows USING STRONGLY TYPED DATASET CLASSES Using a Loosely Typed DataSet Creating a Strongly Typed DataSet Investigating the Class Use the Class View Window Writing Some Simple Code Using a Strongly Typed DataSet Working with an Untyped DataSet Working with a Typed DataSet Using a TableAdapter Finding a Row in a Typed DataSet Editing a Row in a Typed DataSet Adding a New Row to a Typed DataSet Working with Null Values in a Typed DataSet Navigating Relations in a Typed DataSet Creating New TableAdapter Queries Issues with Using a Strongly Typed DataSet Strongly Typed DataSet and Data Binding Comparing Typed and Untyped DataSet Efficiency TOC-4

5 Converting Between Typed and Untyped DataSet Instances Using Annotations to Control the Generation of a DataSet Class Should You Use a Typed DataSet? LAB 7: USING STRONGLY TYPED DATASET CLASSES Lab 7 Overview Create a Strongly Typed DataSet Hook Up Data Handling HANDLING EXCEPTIONS AND DATA ERRORS Using Structured Exception Handling The Exception Base Class The Try/Catch Block Unhandled Exceptions Using the Exception Object Handling Provider Errors Using SqlException Using InfoMessage Dealing with Errors and InfoMessages Using Transactions Implicit Transactions Explicit Transactions Transaction Isolation Levels The SqlTransaction Object Handling Concurrency Conflicts Optimistic Concurrency Issues Update Criteria Handling Data Updates with ADO.NET LAB 8: HANDLING EXCEPTIONS AND DATA ERRORS Lab 8 Overview Handle Multiple Errors Create an Explicit Transaction SEARCHING, SORTING, AND FILTERING The Sample Project Data in the Sample Project Displaying Results TOC-5

6 Working with DataTables Searching Primary Key Values Searching for Multiple Columns Simple Dynamic Searches Searching with Wildcards Managing Delimiters More Filtering Issues Working with DataViews Sorting Data Using a DataView Filtering Data Filtering on Row State Iterating through Rows Finding a Row Finding Multiple Rows Modifying Data in a DataView Creating a DataTable from a DataView LAB 9: SEARCHING, SORTING, AND FILTERING Lab 9 Overview Allow Simple Wildcard Searches Handle Delimiters within Strings Display the Results in a DataGridView HANDLING AUTOINCREMENT COLUMNS The AutoIncrement Property AutoIncrement in a Typed DataSet Retrieving New Database Values Using Batched SQL Statements Using the RowUpdated Event Resetting the SQL Server Identity Seed Avoiding Multiuser Conflicts Understanding the Problem Setting AutoIncrementSeed and AutoIncrementStep Merging Inserted Rows Understanding the Problem Inspecting the Code Solving the Merge Problem Other Considerations Handling Parent/Child Inserts The Easy Way: Using GUIDs TOC-6

7 LAB 10: HANDLING AUTOINCREMENT COLUMNS Lab 10 Overview Retrieve Autonumber Values from Access and Avoid Multiuser Conflicts Merge New Rows Containing AutoIncrement Values XML TECHNIQUES ADO.NET and XML Getting Started Reading and Writing XML Working with XML Programmatically Saving DataSet Data as XML Using the GetXml Method Controlling DataSet XML Output Options Using the WriteXml Method Writing XML Output as a DiffGram Loading XML Data into a DataSet The Ground Rules Inferring a Schema Using Internal Schema Using External Schema Reading a DiffGram Loading a DataSet or DataTable from an XML String Working with DataSets and XML Together Using an XmlDataDocument Format XML Data with XSLT Query DataSet Data with XPath Working with XML Data in SQL Server Using XQuery to Query and Modify XML Data in SQL Server LAB 11: XML TECHNIQUES Lab 11 Overview Write a DataSet to an XML File Use XSL to Create a Formatted Report SUPPORTING SQL SERVER 2005 FEATURES Optimizing Performance Performing Asynchronous Processing Using Bulk Copy to Load Data Quickly Enhancing Concurrency with Snapshot Isolation TOC-7

8 Easing Application Development Listing Available SQL Servers Retrieving Multiple Active Result Sets (MARS) Working with max Data Types Using Query Notifications with ASP.NET Caching LAB 12: SUPPORTING SQL SERVER 2005 FEATURES Lab 12 Overview Asynchronous Processing Work with max Data Types INDEX...INDEX-1 TOC-8