SqlRowUpdatedEventArgs Class
Definition
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Provides data for the RowUpdated event.
public ref class SqlRowUpdatedEventArgs sealed : System::Data::Common::RowUpdatedEventArgs
public sealed class SqlRowUpdatedEventArgs : System.Data.Common.RowUpdatedEventArgs
type SqlRowUpdatedEventArgs = class
inherit RowUpdatedEventArgs
Public NotInheritable Class SqlRowUpdatedEventArgs
Inherits RowUpdatedEventArgs
- Inheritance
Examples
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 static void OnRowUpdating(object sender, SqlRowUpdatingEventArgs e)
{
PrintEventArgs(e);
}
// handler for RowUpdated event
private static void OnRowUpdated(object sender, SqlRowUpdatedEventArgs e)
{
PrintEventArgs(e);
}
public static int Main()
{
const string connectionString =
"Integrated Security=SSPI;database=Northwind;server=MSSQL1";
const string queryString = "SELECT * FROM Products";
// create DataAdapter
SqlDataAdapter adapter = new SqlDataAdapter(queryString, connectionString);
SqlCommandBuilder builder = new SqlCommandBuilder(adapter);
// Create and fill DataSet (select only first 5 rows)
DataSet dataSet = new DataSet();
adapter.Fill(dataSet, 0, 5, "Table");
// Modify DataSet
DataTable table = dataSet.Tables["Table"];
table.Rows[0][1] = "new product";
// add handlers
adapter.RowUpdating += new SqlRowUpdatingEventHandler( OnRowUpdating );
adapter.RowUpdated += new SqlRowUpdatedEventHandler( OnRowUpdated );
// update, this operation fires two events
// (RowUpdating/RowUpdated) per changed row
adapter.Update(dataSet, "Table");
// remove handlers
adapter.RowUpdating -= new SqlRowUpdatingEventHandler( OnRowUpdating );
adapter.RowUpdated -= new SqlRowUpdatedEventHandler( OnRowUpdated );
return 0;
}
private static void PrintEventArgs(SqlRowUpdatingEventArgs args)
{
Console.WriteLine("OnRowUpdating");
Console.WriteLine(" event args: ("+
" command=" + args.Command +
" commandType=" + args.StatementType +
" status=" + args.Status + ")");
}
private static void PrintEventArgs(SqlRowUpdatedEventArgs args)
{
Console.WriteLine("OnRowUpdated");
Console.WriteLine( " event args: ("+
" command=" + args.Command +
" commandType=" + args.StatementType +
" recordsAffected=" + args.RecordsAffected +
" status=" + args.Status + ")");
}
' handler for RowUpdating event
Private Shared Sub OnRowUpdating(sender As Object, e As SqlRowUpdatingEventArgs)
PrintEventArgs(e)
End Sub
' handler for RowUpdated event
Private Shared Sub OnRowUpdated(sender As Object, e As SqlRowUpdatedEventArgs)
PrintEventArgs(e)
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 * FROM Products"
' create DataAdapter
Dim adapter As New SqlDataAdapter(queryString, connectionString)
Dim builder As 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("OnRowUpdating")
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("OnRowUpdated")
Console.WriteLine(" event args: (" & " command=" & args.Command.CommandText & _
" commandType=" & args.StatementType & " recordsAffected=" & _
args.RecordsAffected & " status=" & args.Status & ")")
End Sub
End Class
Remarks
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
, and 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.
Constructors
SqlRowUpdatedEventArgs(DataRow, IDbCommand, StatementType, DataTableMapping) |
Initializes a new instance of the SqlRowUpdatedEventArgs class. |
Properties
Command |
Gets or sets the SqlCommand executed when Update(DataSet) is called. |
Errors |
Gets any errors generated by the .NET 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(DataSet). (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(DataSet). (Inherited from RowUpdatedEventArgs) |
Methods
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 the default hash function. (Inherited from Object) |
GetType() |
Gets the Type of the current instance. (Inherited from Object) |
MemberwiseClone() |
Creates a shallow copy of the current Object. (Inherited from Object) |
ToString() |
Returns a string that represents the current object. (Inherited from Object) |
Applies to
See also
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