Export (0) Print
Expand All

SqlRowUpdatedEventArgs Class

Provides data for the RowUpdated event.


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

Public NotInheritable Class SqlRowUpdatedEventArgs _
	Inherits RowUpdatedEventArgs

The SqlRowUpdatedEventArgs type exposes the following members.

Public methodSqlRowUpdatedEventArgsInitializes a new instance of the SqlRowUpdatedEventArgs class.

Public propertyCommandGets or sets the SqlCommand 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.)

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.)
Public methodGetHashCodeServes as the default hash function. (Inherited from Object.)
Public methodGetTypeGets the Type of the current instance. (Inherited from Object.)
Public methodToStringReturns 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:

  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, and 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=System.Data.SqlClient.SqlCommand commandType=2 status=0)

The RowUpdated event returns this output:

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

    ' handler for RowUpdating event 
    Private Shared Sub OnRowUpdating(sender As Object, e As SqlRowUpdatingEventArgs)
    End Sub  

    ' handler for RowUpdated event 
    Private Shared Sub OnRowUpdated(sender As Object, e As SqlRowUpdatedEventArgs)
    End Sub  

    '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 connectionString As String = _
            "Integrated Security=SSPI;database=Northwind;server=MSSQL1" 
        Const queryString As String = "SELECT * FROMProducts" 

        ' create DataAdapter 
        Dim adapter As New SqlDataAdapter(queryString, connectionString)
        Dim builder As SqlCommandBuilder = New SqlCommandBuilder(adapter)

        ' Create and fill DataSet (select only first 5 rows) 
        Dim dataSet As New DataSet()
        adapter.Fill(dataSet, 0, 5, "Table")

        ' Modify DataSet 
        Dim table As DataTable = dataSet.Tables("Table")
        table.Rows(0)(1) = "new product" 

        ' add handlers 
        AddHandler adapter.RowUpdating, AddressOf OnRowUpdating
        AddHandler adapter.RowUpdated, AddressOf OnRowUpdated

        ' update, this operation fires two events  
        '(RowUpdating/RowUpdated) per changed row 
        adapter.Update(dataSet, "Table")

        ' remove handlers 
        RemoveHandler adapter.RowUpdating, AddressOf OnRowUpdating
        RemoveHandler adapter.RowUpdated, AddressOf OnRowUpdated
        Return 0
    End Function  

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

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

.NET Framework

Supported in: 4.6, 4.5, 4, 3.5, 3.0, 2.0, 1.1

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.
© 2015 Microsoft