C#

Get the LastErrorText for an Asynchronous Method Call

See more Async Examples

Demonstrates how to get the LastErrorText information for a Chilkat method called asynchronously. C#

bool success = false;

//  This example requires the Chilkat API to have been previously unlocked.
//  See Global Unlock Sample for sample code.

Chilkat.Socket socket = new Chilkat.Socket();

//  The Async call simply creates the task.  The "Connect" method has not yet been called.
int maxWaitMs = 5000;
//  Let's intentionally cause this connect to fail by giving it an invalid domain..
Chilkat.Task task = socket.ConnectAsync("amazonbladflakjsdflksadjf.com",443,true,maxWaitMs);
if (socket.LastMethodSuccess == false) {
    Debug.WriteLine(socket.LastErrorText);
    return;
}

//  Start the background thread to run the task.
success = task.Run();
if (!success) {
    Debug.WriteLine(task.LastErrorText);

    return;
}

//  The application is now free to do anything else

//  For this example, we'll simply sleep and periodically
//  check to see if the Socket Connect if finished.
while (task.Finished != true) {
    //  Sleep 1 ms.
    task.SleepMs(1);
}

//  If the task completed, it means the method (in this case the Connect method) was called and returned success or failure.
if (task.StatusInt != 7) {
    Debug.WriteLine("Task did not complete.");
    Debug.WriteLine("task status: " + task.Status);

    return;
}

//  Get the success/failure of the Connect
//  (This is the return value of the Connect method had it been called synchronously)
success = task.GetResultBool();
if (success == false) {
    //  Get the LastErrorText for the Connect method call.
    //  Had we called Connect synchronously, we would've simply accessed the socket object's LastErrorText property.
    //  Instead, we get the task object's ResultErrorText.
    Debug.WriteLine(task.ResultErrorText);
}
else {
    Debug.WriteLine("Connect succeeded.");
}