1 Data Classes- DataView DataGridView Control

Objectives 2  Data Class  DataAdapter  DataReader  DataSet  DataTable  DataView  DataGridView Control  Summary

DataAdapter Properties 3

Demo 4 SqlDataAdapter is the best way to load data from server to DataSet

SqlDataAdapter : properties - Events 5 SqlDataAdapter dataAdapt = new SqlDataAdapter(); SqlCommand cmd = new SqlCommand(“Select * from authors”, con); dataAdapt.SelectCommand = cmd ; DataSet ds = new DataSet(); dataAdapt.Fill(ds); DeleteComman d InsertComman d SelectComman d UpdateComman d RowUpdate RowUpdating

OleDbDataAdapter 6  Used to connect to multiple databses such as : SQLServer, Access, Oracle  Exists in the namespace : System.Data.OleDb  Have the same properties and events as SqlDataAdapter

SqlDataReader class 7 Used to read data from SQL Server in a sequential manner and have some properties : Forward-only - Read Only Get it by call the ExecuteReader() method of SqlCommand object Read data by Read() method FieldCount HasRow IsClosed Item RecordsAffe cted

SqlDataReader : Method 8

DataSet 9 A representation of a database in cached-memory Included datatable and relation and contrains Ex : DataSet ds = new DataSet()

Method – Kind of DataSet 10 TypeDataSet : -Have a schema :.xsd UntypeDataSet : -Create by a code : DataSet A = new DataSet() Navigate Record : Using Binding source class and use some methods of this class as : - MoveFirst - MoveLast - MoveNext - MovePrevious

DataSet and XML 11 DataSet can fetch data from a XML file ReadXML(string path) : read XML file to DataSet WriteXML(string path) : save the content DataSet to a XML file

DataTable class 12 Represent a table in DataSet Have a constraint objects that ensure data integrity Properties

Method 13

DataTable: Event 14

DataTableCollection 15 The DataTableCollection class is a collection of the tables in DataSet Collection of the DataTable class

DataRelation 16 Maintains referential integrity by enforcing foreign-key constraint Unique constraint Cascade update and delete operation Use to relate two DataColumn Object that exits in two DataTable

DataColumn class 17 Used for creating a schema for a particular column You can add a column to a DataColumnCollection

DataRow class 18 Represent a row in a DataTable

DataTableReader 19

DataTableReader 20 DataTableReader dtr = dataTable.CreateDataReader()

Demo 21

Summary 22  Data Class  DataAdapter  DataReader  DataSet  DataTable

DataView class 23 Used to sort, filter, search, modify and navigate through the record Constructor of this class is a dataTable

Properties 24

25

DataViewManager 26

DataGrid control 27 Display data in a tabular format Populated by the table present in dataSet ( binding) Insert, delete, update  DataSet

DataGridView control 28

DataGridView control 29

Example 30

DataGridView & DataGrid control 31

Summary 32