private void btnChangeDb_Click(object sender, EventArgs e)
{
frmConnectionRepository frm = new frmConnectionRepository();
if (frm.ShowDialog() != DialogResult.OK)
{
return;
}
ConnectionParams cp = frm.SelectedDataSource;
if (cp == null)
return;
string error = String.Empty;
AsyncConnectionResult cResult = frmAsyncConnectionOpener.TryToOpenConnection(cp, ref error);
if (cResult == AsyncConnectionResult.Error)
{
MessageBox.Show(error, "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
return;
}
else if (cResult != AsyncConnectionResult.Success)
return;
_connParams = cp;
Caption = _connParams.InfoDbServer;
}
private void bw_RunWorkerCompleted(object sender, RunWorkerCompletedEventArgs e)
{
try
{
if (e.Cancelled)
{
_result = AsyncConnectionResult.Cancel;
DialogResult = DialogResult.Cancel;
return;
}
if (e.Error != null)
{
_lastError = e.Error.Message;
_result = AsyncConnectionResult.Error;
DialogResult = DialogResult.Abort;
return;
}
_result = AsyncConnectionResult.Success;
DialogResult = DialogResult.OK;
}
finally
{
_connecting = false;
}
}
private bool AsyncTestConnection(bool showErrorDialog)
{
bool result = false;
ConnectionParams cConn = GetCurrentConnectionSpec();
cConn.TimeOut = "15";
string error = String.Empty;
AsyncConnectionResult aResult = frmAsyncConnectionOpener.TryToOpenConnection(cConn, ref error);
if (aResult == AsyncConnectionResult.Success)
{
result = true;
}
else if (aResult == AsyncConnectionResult.Error)
{
if (showErrorDialog)
{
MessageBox.Show(error, "Connection Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
else
{
throw new Exception(error);
}
}
return(result);
}
/// <summary>
/// Used to handle if the connection was successful or not if the ConnectAsync method.
/// </summary>
/// <param name="connected">If the connection was successful or not.</param>
/// <param name="ex">If the connection was not successful, this will not be null</param>
private void OnConnect(bool connected, Exception ex)
{
checkDisposed();
//If the connection is successful, start reading data.
if (connected)
{
beginRead();
}
//Call the event.
AsyncConnectionResult?.Invoke(this, new TcpSocketConnectionStateEventArgs(connected,
ex));
}
private void btnCancel_Click(object sender, EventArgs e)
{
if (_cancelled)
{
return;
}
bw.CancelAsync();
_cancelled = true;
_result = AsyncConnectionResult.Cancel;
DialogResult = DialogResult.Cancel;
}
