OracleCommand.Cancel Method

Definition

Namespace:

System.Data.OracleClient

Assembly:

System.Data.OracleClient.dll

Attempts to cancel the execution of an OracleCommand.

public:
 override void Cancel();

public override void Cancel ();

override this.Cancel : unit -> unit

Public Overrides Sub Cancel ()

Examples

The following example creates an OracleCommand, executes it, then cancels the execution. To accomplish this, the method is passed a string that is an SQL SELECT statement and a string to use to connect to the database.

public void CreateOracleCommand(string queryString, string connectionString)
{
    using (OracleConnection connection = new OracleConnection(connectionString))
    {
        OracleCommand command = new OracleCommand(queryString, connection);
        command.Connection.Open();
        command.ExecuteReader();
        command.Cancel();
    }
}

Public Sub CreateOracleCommand _
(ByVal queryString As String, ByVal connectionString As String)
    Using connection As New OracleConnection(connectionString)
        Dim command As New OracleCommand(queryString, connection)
        command.Connection.Open()
        command.ExecuteReader()
        command.Cancel()
    End Using
End Sub

Remarks

If there is nothing to cancel, nothing happens. However, if there is a command in process, and the attempt to cancel fails, no exception is generated.

See also

• Working with Commands