OracleRowUpdatedEventArgs Class
Provides data for the RowUpdated event. This class cannot be inherited.
System.EventArgs
System.Data.Common.RowUpdatedEventArgs
System.Data.OracleClient.OracleRowUpdatedEventArgs
Namespace: System.Data.OracleClient
Assembly: System.Data.OracleClient (in System.Data.OracleClient.dll)
The OracleRowUpdatedEventArgs type exposes the following members.
| Name | Description | |
|---|---|---|
![]() | OracleRowUpdatedEventArgs | Initializes a new instance of the OracleRowUpdatedEventArgs class. |
| Name | Description | |
|---|---|---|
![]() | Command | Gets or sets the OracleCommand executed when Update is called. |
![]() | Errors | Gets any errors generated by the .NET Framework data provider when the Command was executed. (Inherited from RowUpdatedEventArgs.) |
![]() | RecordsAffected | Gets the number of rows changed, inserted, or deleted by execution of the SQL statement. (Inherited from RowUpdatedEventArgs.) |
![]() | Row | Gets the DataRow sent through an Update. (Inherited from RowUpdatedEventArgs.) |
![]() | RowCount | Gets the number of rows processed in a batch of updated records. (Inherited from RowUpdatedEventArgs.) |
![]() | StatementType | Gets the type of SQL statement executed. (Inherited from RowUpdatedEventArgs.) |
![]() | Status | Gets the UpdateStatus of the Command property. (Inherited from RowUpdatedEventArgs.) |
![]() | TableMapping | Gets the DataTableMapping sent through an Update. (Inherited from RowUpdatedEventArgs.) |
| Name | Description | |
|---|---|---|
![]() | CopyToRows(DataRow()) | Copies references to the modified rows into the provided array. (Inherited from RowUpdatedEventArgs.) |
![]() | CopyToRows(DataRow(), Int32) | Copies references to the modified rows into the provided array. (Inherited from RowUpdatedEventArgs.) |
![]() | Equals(Object) | Determines whether the specified object is equal to the current object. (Inherited from Object.) |
![]() | GetHashCode | Serves as a hash function for a particular type. (Inherited from Object.) |
![]() | GetType | Gets the Type of the current instance. (Inherited from Object.) |
![]() | ToString | Returns a string that represents the current object. (Inherited from Object.) |
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:
The values in the DataRow are moved to the parameter values.
The OnRowUpdating event is raised.
The command executes.
If the command is set to FirstReturnedRecord, the first returned result is placed in the DataRow.
If there are output parameters, they are placed in the DataRow.
The OnRowUpdated event is raised.
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
Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.
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