public TChannel CreateLocalChannel <TChannel>()
{
ChannelFactory <TChannel> channelFactory = new ChannelFactory <TChannel>(localBinding, localWorkflowAddress);
TChannel channel = channelFactory.CreateChannel();
IDictionary <string, string> context = ContextManager.DepersistContext(contextFileName);
if (context != null && context.Count > 0)
{
ContextManager.ApplyContextToChannel(context, (IClientChannel)channel);
recoveredContext = true;
// register handlers to cleanup context file when Workflow completes or terminates.
this.Description.Behaviors.Find <WorkflowRuntimeBehavior>().WorkflowRuntime.WorkflowCompleted += delegate(object sender, WorkflowCompletedEventArgs e) { ContextManager.DeleteContext(contextFileName); };
this.Description.Behaviors.Find <WorkflowRuntimeBehavior>().WorkflowRuntime.WorkflowTerminated += delegate(object sender, WorkflowTerminatedEventArgs e) { ContextManager.DeleteContext(contextFileName); };
}
return(channel);
}
void PowerSwitch(object sender, RoutedEventArgs e)
{
try
{
using (new OperationContextScope((IContextChannel)Client.InnerChannel))
{
if (PowerOn)
{
PowerOn = false;
if (!contextApplied)
{
ContextManager.ApplyContextToChannel(Context, Client.InnerChannel);
contextApplied = true;
}
Context = null;
ContextManager.DeleteContext(contextFile);
Client.PowerOff();
Client.Close();
client = null;
}
else
{
Client.PowerOn();
// At this point the channel has the context from the operation called
contextApplied = true;
// extract and persist context
Context = ContextManager.ExtractContextFromChannel(client.InnerChannel);
ContextManager.PersistContext(Context, contextFile);
PowerOn = true;
}
}
}
catch (CommunicationException ce)
{
MessageBox.Show(ce.Message);
Client.Abort();
client = null;
}
}
void DoOperation(object sender, RoutedEventArgs e)
{
int value = 0;
string operation = ((Button)sender).Content.ToString();
if (!operation.StartsWith("=") && !int.TryParse(Display.Text, out value))
{
MessageBox.Show("Invalid input! Try again.");
Display.Text = String.Empty;
}
try
{
if (!PowerOn)
{
PowerSwitch(ButtonC, null);
}
using (new OperationContextScope((IContextChannel)Client.InnerChannel))
{
if (!contextApplied)
{
ContextManager.ApplyContextToChannel(Context, Client.InnerChannel);
contextApplied = true;
}
switch (operation)
{
case "=": { value = Client.Add(0); break; }
case "+": { value = Client.Add(value); break; }
case "-": { value = Client.Subtract(value); break; }
case "x": { value = Client.Multiply(value); break; }
case "/": {
if (value == 0)
{
MessageBox.Show("Divide By Zero is not allowed");
value = client.Add(0);
break;
}
else
{
value = Client.Divide(value);
break;
}
}
}
}
}
catch (CommunicationException ce)
{
MessageBox.Show(ce.Message);
Client.Abort();
client = null;
}
Display.Background = onBrush;
Display.Text = value.ToString();
displayNew = true;
}
