/// <summary>
/// Use BeginInvoke/EndInvoke
/// </summary>
private static void WorkflowInvokerBeginInvoke()
{
Console.WriteLine("Host: About to run workflow - Thread:{0}",
System.Threading.Thread.CurrentThread.ManagedThreadId);
try
{
WorkflowInvoker instance = new WorkflowInvoker(
new HostingDemoWorkflow {
ArgNumberToEcho = 1001
});
IAsyncResult ar = instance.BeginInvoke(
BeginInvokeCallback, instance);
Console.WriteLine(
"Host: Workflow started - Thread:{0}",
System.Threading.Thread.CurrentThread.ManagedThreadId);
waitEvent.WaitOne();
}
catch (Exception exception)
{
Console.WriteLine("Host: Workflow exception:{0}:{1}",
exception.GetType(), exception.Message);
}
}
private void InvokeReputation()
{
object state = "";
var invoker = new WorkflowInvoker(new UnfreezeTextWorkflow());
var inputs = new Dictionary <string, object> {
};
// Wait for the workflow to complete.
Task.Factory.FromAsync <IDictionary <string, object> >(
invoker.BeginInvoke(inputs, AsyncCall, state),
invoker.EndInvoke);
}
// BeginInvoke with LongRunningDiceRoll
//<snippet32>
static void BeginInvokeExample()
{
WorkflowInvoker invoker = new WorkflowInvoker(new LongRunningDiceRoll());
string userState = "BeginInvoke example";
IAsyncResult result = invoker.BeginInvoke(new AsyncCallback(WorkflowCompletedCallback), userState);
// You can inspect result from the host to determine if the workflow
// is complete.
Console.WriteLine("result.IsCompleted: {0}", result.IsCompleted);
// The results of the workflow are retrieved by calling EndInvoke, which
// can be called from the callback or from the host. If called from the
// host, it blocks until the workflow completes. If a callback is not
// required, pass null for the callback parameter.
Console.WriteLine("Waiting for the workflow to complete.");
IDictionary <string, object> outputs = invoker.EndInvoke(result);
Console.WriteLine("The two dice are {0} and {1}.",
outputs["D1"], outputs["D2"]);
}
