/// <summary>
/// OnRecordsetChangeComplete event is called after the ADORecordsetHelper has changed.
/// </summary>
/// <param name="reason">The reason of the change.</param>
/// <param name="status">A EventStatusEnum value that indicates the state of the ADORecordsetHelper in the moment that the event rose.</param>
/// <param name="errors">Array containing all the errors occurred during the field change.</param>
protected void OnRecordsetChangeComplete(EventReasonEnum reason, ref EventStatusEnum status, string[] errors)
{
if (RecordsetChangeComplete != null)
{
RecordSetChangeCompleteEventArgs args = new RecordSetChangeCompleteEventArgs(reason, errors, status);
RecordsetChangeComplete(this, args);
status = args.Status;
}
}
/// <summary>
/// OnMoveComplete event is called after the current position in the ADORecordsetHelper changes.
/// </summary>
/// <param name="reason">The reason of the change.</param>
/// <param name="status">A EventStatusEnum value that indicates the state of the ADORecordsetHelper in the moment that the event rose.</param>
/// <param name="errors">Array containing all the errors occurred during the field change.</param>
protected void OnMoveComplete(EventReasonEnum reason, ref EventStatusEnum status, string[] errors)
{
if (MoveComplete != null)
{
MoveCompleteEventArgs args = new MoveCompleteEventArgs(reason, errors, status);
MoveComplete(this, args);
status = args.Status;
}
}
/// <summary>
/// OnWillMove event is called before a pending operation changes the current position in the ADORecordsetHelper.
/// </summary>
/// <param name="reason">The reason of the change.</param>
/// <param name="status">A EventStatusEnum value that indicates the state of the ADORecordsetHelper in the moment that the event rose.</param>
protected void OnWillMove(EventReasonEnum reason, ref EventStatusEnum status)
{
if (WillMove != null)
{
MoveEventArgs args = new MoveEventArgs(reason, status);
WillMove(this, args);
status = args.Status;
}
}
/// <summary>
/// The OnWillChangeRecord event is called before one or more records (rows) in the Recordset change.
/// </summary>
/// <param name="reason">The reason of the change.</param>
/// <param name="status">A EventStatusEnum value that indicates the state of the ADORecordsetHelper in the moment that the event rose.</param>
/// <param name="numRecords">Value indicating the number of records changed (affected).</param>
protected void OnWillChangeRecord(EventReasonEnum reason, ref EventStatusEnum status, int numRecords)
{
if (WillChangeRecord != null)
{
RecordChangeEventArgs args = new RecordChangeEventArgs(reason, numRecords, status);
WillChangeRecord(this, args);
status = args.Status;
}
}
/// <summary>
/// OnWillChangeRecordset event is called before a pending operation changes the ADORecordsetHelper.
/// </summary>
/// <param name="reason">The reason of the change.</param>
/// <param name="status">A EventStatusEnum value that indicates the state of the ADORecordsetHelper in the moment that the event rose.</param>
protected void OnWillChangeRecordset(EventReasonEnum reason, ref EventStatusEnum status)
{
if (WillChangeRecordset != null)
{
RecordSetChangeEventArgs args = new RecordSetChangeEventArgs(reason, status);
WillChangeRecordset(this, args);
status = args.Status;
}
}
/// <summary>
/// Creates a new RecordSetChangeEventArgs instance.
/// </summary>
/// <param name="reason">The reason of the change.</param>
/// <param name="errors">The errors ocurred during the operation.</param>
/// <param name="status">The status of the event.</param>
protected RecordSetChangeEventArgs(EventReasonEnum reason, string[] errors, EventStatusEnum status)
: base(status, errors)
{
this.reason = reason;
}
/// <summary>
/// Move the current record according to the value of “records”.
/// </summary>
/// <param name="records">The number of records to move forward (if positive), backwards (if negative).</param>
/// <param name="reason">The reason of the change.</param>
/// <param name="status">An EventStatusEnum value that indicates the state of the ADORecordsetHelper in the moment that the event rose.</param>
private void Move(int records, EventReasonEnum reason, EventStatusEnum status)
{
//if ((!UsingView && Tables[0].Rows.Count == 0) || (UsingView && currentView.Count == 0))
//{
// throw new InvalidOperationException("Requested operation requires a current record");
//}
OnWillMove(reason, ref status);
string[] errors = null;
if (status != EventStatusEnum.adStatusCancel)
{
try
{
if (records != 0 && index >= 0)
{
Update(false);
}
BasicMove(index + records);
if (eof && reason != EventReasonEnum.adRsnMoveFirst && reason != EventReasonEnum.adRsnMovePrevious)
{
EndOfRecordsetLogic();
}
//else
//{
// eof = false;
//}
}
catch (Exception e)
{
errors = new string[] { e.Message };
status = EventStatusEnum.adStatusErrorsOccurred;
}
OnMoveComplete(reason, ref status, errors);
}
}
/// <summary>
/// Creates a new MoveEventArgs instance.
/// </summary>
/// <param name="reason">The reason of the move.</param>
/// <param name="status">The status of the event.</param>
public MoveEventArgs(EventReasonEnum reason, EventStatusEnum status)
: this(reason, null, status)
{
}
/// <summary>
/// Creates a new RecordSetChangeCompleteEventArgs instance.
/// </summary>
/// <param name="reason">The reason of the change.</param>
/// <param name="errors">The errors ocurred during the operation.</param>
/// <param name="status">The status of the event.</param>
public RecordSetChangeCompleteEventArgs(EventReasonEnum reason, string[] errors, EventStatusEnum status)
: base(reason, errors, status)
{
}
/// <summary>
/// Creates a new RecordChangeCompleteEventArgs instance.
/// </summary>
/// <param name="reason">The reason of the change.</param>
/// <param name="numberOfRecords">The number of fields affected.</param>
/// <param name="errors">The errors ocurred during the operation.</param>
/// <param name="status">The status of the event.</param>
public RecordChangeCompleteEventArgs(EventReasonEnum reason, int numberOfRecords, string[] errors, EventStatusEnum status)
: base(reason, numberOfRecords, errors, status)
{
}
/// <summary>
/// OnMoveComplete event is called after the current position in the ADORecordsetHelper changes.
/// </summary>
/// <param name="reason">The reason of the change.</param>
/// <param name="status">A EventStatusEnum value that indicates the state of the ADORecordsetHelper in the moment that the event rose.</param>
/// <param name="errors">Array containing all the errors occurred during the field change.</param>
protected void OnMoveComplete(EventReasonEnum reason, ref EventStatusEnum status, string[] errors)
{
if (MoveComplete != null)
{
MoveCompleteEventArgs args = new MoveCompleteEventArgs(reason, errors, status);
MoveComplete(this, args);
status = args.Status;
}
}
/// <summary>
/// Creates a new MoveCompleteEventArgs instance.
/// </summary>
/// <param name="reason">The reason of the move.</param>
/// <param name="errors">The errors ocurred during the operation.</param>
/// <param name="status">The status of the event.</param>
public MoveCompleteEventArgs(EventReasonEnum reason, string[] errors, EventStatusEnum status)
: base(reason, errors, status)
{
}
/// <summary>
/// OnWillMove event is called before a pending operation changes the current position in the ADORecordsetHelper.
/// </summary>
/// <param name="reason">The reason of the change.</param>
/// <param name="status">A EventStatusEnum value that indicates the state of the ADORecordsetHelper in the moment that the event rose.</param>
protected void OnWillMove(EventReasonEnum reason, ref EventStatusEnum status)
{
if (WillMove != null)
{
MoveEventArgs args = new MoveEventArgs(reason, status);
WillMove(this, args);
status = args.Status;
}
}
/// <summary>
/// OnWillChangeRecordset event is called before a pending operation changes the ADORecordsetHelper.
/// </summary>
/// <param name="reason">The reason of the change.</param>
/// <param name="status">A EventStatusEnum value that indicates the state of the ADORecordsetHelper in the moment that the event rose.</param>
protected void OnWillChangeRecordset(EventReasonEnum reason, ref EventStatusEnum status)
{
if (WillChangeRecordset != null)
{
RecordSetChangeEventArgs args = new RecordSetChangeEventArgs(reason, status);
WillChangeRecordset(this, args);
status = args.Status;
}
}
/// <summary>
/// The OnWillChangeRecord event is called before one or more records (rows) in the Recordset change.
/// </summary>
/// <param name="reason">The reason of the change.</param>
/// <param name="status">A EventStatusEnum value that indicates the state of the ADORecordsetHelper in the moment that the event rose.</param>
/// <param name="numRecords">Value indicating the number of records changed (affected).</param>
protected void OnWillChangeRecord(EventReasonEnum reason, ref EventStatusEnum status, int numRecords)
{
if (WillChangeRecord != null)
{
RecordChangeEventArgs args = new RecordChangeEventArgs(reason, numRecords, status);
WillChangeRecord(this, args);
status = args.Status;
}
}
/// <summary>
/// OnRecordsetChangeComplete event is called after the ADORecordsetHelper has changed.
/// </summary>
/// <param name="reason">The reason of the change.</param>
/// <param name="status">A EventStatusEnum value that indicates the state of the ADORecordsetHelper in the moment that the event rose.</param>
/// <param name="errors">Array containing all the errors occurred during the field change.</param>
protected void OnRecordsetChangeComplete(EventReasonEnum reason, ref EventStatusEnum status, string[] errors)
{
if (RecordsetChangeComplete != null)
{
RecordSetChangeCompleteEventArgs args = new RecordSetChangeCompleteEventArgs(reason, errors, status);
RecordsetChangeComplete(this, args);
status = args.Status;
}
}
/// <summary>
/// Creates a new RecordChangeEventArgs instance.
/// </summary>
/// <param name="reason">The reason of the change.</param>
/// <param name="numberOfRecords">The number of fields affected.</param>
/// <param name="errors">The errors ocurred during the operation.</param>
/// <param name="status">The status of the event.</param>
protected RecordChangeEventArgs(EventReasonEnum reason, int numberOfRecords, string[] errors, EventStatusEnum status)
: base(status, errors)
{
this.reason = reason;
this.numberOfRecords = numberOfRecords;
}
/// <summary>
/// Creates a new MoveEventArgs instance.
/// </summary>
/// <param name="reason">The reason of the move.</param>
/// <param name="status">The status of the event.</param>
public MoveEventArgs(EventReasonEnum reason, EventStatusEnum status)
: this(reason, null, status)
{
}
/// <summary>
/// Move the current record to the beginning of the ADORecordsetHelper object.
/// </summary>
/// <param name="reason">The reason of the change.</param>
private void MoveFirst(EventReasonEnum reason)
{
if (index == -1)
{
index = 0;
}
Move((-1 * index), reason, EventStatusEnum.adStatusOK);
}
/// <summary>
/// Creates a new RecordChangeCompleteEventArgs instance.
/// </summary>
/// <param name="reason">The reason of the change.</param>
/// <param name="numberOfRecords">The number of fields affected.</param>
/// <param name="errors">The errors ocurred during the operation.</param>
/// <param name="status">The status of the event.</param>
public RecordChangeCompleteEventArgs(EventReasonEnum reason, int numberOfRecords, string[] errors, EventStatusEnum status)
: base(reason, numberOfRecords, errors, status)
{
}
/// <summary>
/// Creates a new RecordChangeEventArgs instance.
/// </summary>
/// <param name="reason">The reason of the change.</param>
/// <param name="numberOfRecords">The number of fields affected.</param>
/// <param name="status">The status of the event.</param>
public RecordChangeEventArgs(EventReasonEnum reason, int numberOfRecords, EventStatusEnum status)
: this(reason, numberOfRecords, null, status)
{
}
/// <summary>
/// Creates a new RecordChangeEventArgs instance.
/// </summary>
/// <param name="reason">The reason of the change.</param>
/// <param name="numberOfRecords">The number of fields affected.</param>
/// <param name="status">The status of the event.</param>
public RecordChangeEventArgs(EventReasonEnum reason, int numberOfRecords, EventStatusEnum status)
: this(reason, numberOfRecords, null, status)
{
}
/// <summary>
/// Creates a new RecordChangeEventArgs instance.
/// </summary>
/// <param name="reason">The reason of the change.</param>
/// <param name="numberOfRecords">The number of fields affected.</param>
/// <param name="errors">The errors ocurred during the operation.</param>
/// <param name="status">The status of the event.</param>
protected RecordChangeEventArgs(EventReasonEnum reason, int numberOfRecords, string[] errors, EventStatusEnum status)
: base(status, errors)
{
this.reason = reason;
this.numberOfRecords = numberOfRecords;
}
/// <summary>
/// Creates a new RecordSetChangeEventArgs instance.
/// </summary>
/// <param name="reason">The reason of the change.</param>
/// <param name="status">The status of the event.</param>
public RecordSetChangeEventArgs(EventReasonEnum reason, EventStatusEnum status)
: this(reason, null, status)
{
}
/// <summary>
/// Creates a new RecordSetChangeCompleteEventArgs instance.
/// </summary>
/// <param name="reason">The reason of the change.</param>
/// <param name="errors">The errors ocurred during the operation.</param>
/// <param name="status">The status of the event.</param>
public RecordSetChangeCompleteEventArgs(EventReasonEnum reason, string[] errors, EventStatusEnum status)
: base(reason, errors, status)
{
}
/// <summary>
/// Creates a new MoveEventArgs instance.
/// </summary>
/// <param name="reason">The reason of the move.</param>
/// <param name="errors">The errors ocurred during the operation.</param>
/// <param name="status">The status of the event.</param>
protected MoveEventArgs(EventReasonEnum reason, string[] errors, EventStatusEnum status)
: base(status, errors)
{
this.reason = reason;
}
/// <summary>
/// Creates a new RecordSetChangeEventArgs instance.
/// </summary>
/// <param name="reason">The reason of the change.</param>
/// <param name="status">The status of the event.</param>
public RecordSetChangeEventArgs(EventReasonEnum reason, EventStatusEnum status)
: this(reason, null, status)
{
}
/// <summary>
/// Creates a new MoveCompleteEventArgs instance.
/// </summary>
/// <param name="reason">The reason of the move.</param>
/// <param name="errors">The errors ocurred during the operation.</param>
/// <param name="status">The status of the event.</param>
public MoveCompleteEventArgs(EventReasonEnum reason, string[] errors, EventStatusEnum status)
: base(reason, errors, status)
{
}
/// <summary>
/// OnWillMove event is called before a pending operation changes the current position in the ADORecordsetHelper.
/// </summary>
/// <param name="reason">The reason of the change.</param>
/// <param name="status">An EventStatusEnum value that indicates the state of the ADORecordsetHelper in the moment that the event rose.</param>
protected void OnWillMove(EventReasonEnum reason, ref EventStatusEnum status)
{
firstChange = true;
if (WillMove != null)
{
MoveEventArgs args = new MoveEventArgs(reason, status);
WillMove(this, args);
status = args.Status;
firstChange = status == EventStatusEnum.adStatusCancel ? false : true;
}
}
