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OracleRowUpdatedEventArgs Class

Provides data for the RowUpdated event. This class cannot be inherited.

System.Object
  System.EventArgs
    System.Data.Common.RowUpdatedEventArgs
      System.Data.OracleClient.OracleRowUpdatedEventArgs

Namespace:  System.Data.OracleClient
Assembly:  System.Data.OracleClient (in System.Data.OracleClient.dll)

'Declaration
Public NotInheritable Class OracleRowUpdatedEventArgs _
	Inherits RowUpdatedEventArgs

The OracleRowUpdatedEventArgs type exposes the following members.

  NameDescription
Public methodOracleRowUpdatedEventArgsInitializes a new instance of the OracleRowUpdatedEventArgs class.
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  NameDescription
Public propertyCommandGets or sets the OracleCommand executed when Update is called.
Public propertyErrorsGets any errors generated by the .NET Framework data provider when the Command was executed. (Inherited from RowUpdatedEventArgs.)
Public propertyRecordsAffectedGets the number of rows changed, inserted, or deleted by execution of the SQL statement. (Inherited from RowUpdatedEventArgs.)
Public propertyRowGets the DataRow sent through an Update. (Inherited from RowUpdatedEventArgs.)
Public propertyRowCountGets the number of rows processed in a batch of updated records. (Inherited from RowUpdatedEventArgs.)
Public propertyStatementTypeGets the type of SQL statement executed. (Inherited from RowUpdatedEventArgs.)
Public propertyStatusGets the UpdateStatus of the Command property. (Inherited from RowUpdatedEventArgs.)
Public propertyTableMappingGets the DataTableMapping sent through an Update. (Inherited from RowUpdatedEventArgs.)
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  NameDescription
Public methodCopyToRows(DataRow())Copies references to the modified rows into the provided array. (Inherited from RowUpdatedEventArgs.)
Public methodCopyToRows(DataRow(), Int32)Copies references to the modified rows into the provided array. (Inherited from RowUpdatedEventArgs.)
Public methodEquals(Object)Determines whether the specified Object is equal to the current Object. (Inherited from Object.)
Protected methodFinalizeAllows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection. (Inherited from Object.)
Public methodGetHashCodeServes as a hash function for a particular type. (Inherited from Object.)
Public methodGetTypeGets the Type of the current instance. (Inherited from Object.)
Protected methodMemberwiseCloneCreates a shallow copy of the current Object. (Inherited from Object.)
Public methodToStringReturns a string that represents the current object. (Inherited from Object.)
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The RowUpdated event is raised when an Update to a row is completed.

When using Update, there are two events that occur for each data row updated. The order of execution is as follows:

  1. The values in the DataRow are moved to the parameter values.

  2. The OnRowUpdating event is raised.

  3. The command executes.

  4. If the command is set to FirstReturnedRecord, the first returned result is placed in the DataRow.

  5. If there are output parameters, they are placed in the DataRow.

  6. The OnRowUpdated event is raised.

  7. AcceptChanges is called.

The following example shows how to use both the RowUpdating and RowUpdated events.

The RowUpdating event returns this output:

Event Arguments: (command=OracleCommand commandType=2status=0)

The RowUpdated event returns this output:

Event Arguments: (command= OracleCommend commandType=2 recordsAffected=1 row=System.Data.DataRow[37] status=0)


    'Handler for RowUpdating event.
    Private Shared Sub OnRowUpdating(sender As Object, e As OracleRowUpdatingEventArgs)
        PrintEventArgs(e)
    End Sub 'OnRowUpdating

    'Handler for RowUpdated event.
    Private Shared Sub OnRowUpdated(sender As Object, e As OracleRowUpdatedEventArgs)
        PrintEventArgs(e)
    End Sub 'OnRowUpdated

    'Entry point which delegates to C-style main Private Function.
    Public Overloads Shared Sub Main()
        System.Environment.ExitCode = Main(System.Environment.GetCommandLineArgs())
    End Sub

    Overloads Public Shared Function Main(args() As String) As Integer
        Const CONNECTION_STRING As String = "Data Source=Oracle8i;Integrated Security=yes"
        Const SELECT_ALL As String = "SELECT * FROM Scott.Emp"

        'Create DataAdapter.
        Dim rAdapter As New OracleDataAdapter(SELECT_ALL, CONNECTION_STRING)
        Dim cb As OracleCommandBuilder = New OracleCommandBuilder(rAdapter)

        'Create and fill DataSet (Select only first 5 rows.).
        Dim rDataSet As New DataSet()
        rAdapter.Fill(rDataSet, 0, 5, "Table")

        'Modify DataSet.
        Dim rTable As DataTable = rDataSet.Tables("Table")
        rTable.Rows(0)(1) = "DYZY"

        'Add handlers.
        AddHandler rAdapter.RowUpdating, AddressOf OnRowUpdating
        AddHandler rAdapter.RowUpdated, AddressOf OnRowUpdated

        'Update--this operation fires two events (RowUpdating and RowUpdated) for each changed row.
        rAdapter.Update(rDataSet, "Table")

        'Remove handlers.
        RemoveHandler rAdapter.RowUpdating, AddressOf OnRowUpdating
        RemoveHandler rAdapter.RowUpdated, AddressOf OnRowUpdated
        Return 0
    End Function 'Main


    Overloads Private Shared Sub PrintEventArgs(args As OracleRowUpdatingEventArgs)
        Console.WriteLine("OnRowUpdating")
        Console.WriteLine("  event args: (" & " command=" & args.Command.CommandText & _
                        " commandType=" & args.StatementType & " status=" & args.Status & ")")
    End Sub 'PrintEventArgs


    Overloads Private Shared Sub PrintEventArgs(args As OracleRowUpdatedEventArgs)
        Console.WriteLine("OnRowUpdated")
        Console.WriteLine("  event args: (" & " command=" & args.Command.CommandText & _
                        " commandType=" & args.StatementType & " recordsAffected=" & _
                        args.RecordsAffected & " status=" & args.Status & ")")
    End Sub 'PrintEventArgs
End Class 'Form1


.NET Framework

Supported in: 4, 3.5, 3.0, 2.0, 1.1

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

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