private void ReceiveCallback(IAsyncResult AR)
{
try
{
// Socket exception will raise here when client closes, as this sample does not
// demonstrate graceful disconnects for the sake of simplicity.
int received = clientSocket.EndReceive(AR);
if (received == 0)
{
return;
}
// The received data is deserialized in the PersonPackage ctor.
Package = new QuestionPackage(buffer);
GetPackage(Package);
ToggleControlState(true);
// Start receiving data again.
clientSocket.BeginReceive(buffer, 0, buffer.Length, SocketFlags.None, ReceiveCallback, null);
}
// Avoid catching all exceptions handling in cases like these.
catch (SocketException ex)
{
ShowErrorDialog(ex.Message);
}
catch (ObjectDisposedException ex)
{
ShowErrorDialog(ex.Message);
}
}
///-------------------------------------------------------------------------------------------------
/// <summary> Async callback, called on completion of receive callback. </summary>
///
/// <remarks> Jaege, 17/09/2018. </remarks>
///
/// <param name="AR"> The result of the asynchronous operation. </param>
///-------------------------------------------------------------------------------------------------
private void ReceiveCallback(IAsyncResult AR)
{
try
{
int received = clientSocket.EndReceive(AR);
if (received == 0)
{
return;
}
// The received data is deserialized in the PersonPackage ctor.
Package = new QuestionPackage(buffer);
Package.Value = 1;
MessageBox.Show(Package.Value.ToString());
GetPackage(Package);
// Start receiving data again.
clientSocket.BeginReceive(buffer, 0, buffer.Length, SocketFlags.None, ReceiveCallback, null);
}
// Avoid catching all exceptions handling in cases like these.
catch (SocketException ex)
{
ShowErrorDialog(ex.Message);
}
catch (ObjectDisposedException ex)
{
ShowErrorDialog(ex.Message);
}
}
private void GetPackage(QuestionPackage package)
{
question = package.QuestionNo1.ToString() + " " + package.QuestionOperator.ToString() + " "
+ package.QuestionNo2.ToString() + " " + "=";
instructorQuestion1 = Convert.ToInt32(package.QuestionNo1);
instructorOperator = package.QuestionOperator.ToString();
instructorQuestion2 = Convert.ToInt32(package.QuestionNo2);
instructorAnswer = Convert.ToInt32(package.QuestionAnswer);
}
///-------------------------------------------------------------------------------------------------
/// <summary> Gets a package. </summary>
///
/// <remarks> Jaege, 17/09/2018. </remarks>
///
/// <param name="package"> The package. </param>
///-------------------------------------------------------------------------------------------------
private void GetPackage(QuestionPackage package)
{
receivedInstructorFirstNumber = Convert.ToInt32(package.QuestionNo1);
receivedaOperator = package.QuestionOperator.ToString();
receivedInstructorSecondNumber = Convert.ToInt32(package.QuestionNo2);
receivedInstructorAnswer = Convert.ToInt32(package.QuestionAnswer);
question = package.QuestionNo1.ToString() + " " + package.QuestionOperator.ToString() + " "
+ package.QuestionNo2.ToString() + " " + "=";
Value = package.Value;
if (receivedaOperator != null)
{
//ToggleControlState(true);
}
}
public void SendQuestion()
{
try
{
// Serialize the textBoxes text before sending.
QuestionPackage package = new QuestionPackage(instructorQuestion1, instructorOperator, instructorQuestion2, instructorAnswer, Value);
byte[] buffer = package.ToByteArray();
clientSocket.BeginSend(buffer, 0, buffer.Length, SocketFlags.None, SendCallback, null);
ToggleControlState(false);
}
catch (SocketException ex)
{
ShowErrorDialog(ex.Message);
ToggleControlState(false);
}
catch (ObjectDisposedException ex)
{
ShowErrorDialog(ex.Message);
ToggleControlState(false);
}
}
