Develop Reference

SSIS script task is only working with debugging mode

I am using VS 2017 and SQL server 2016 to do the job. I create a script task that tries to send email by using SendGrid. If I put a break point inside the script task, I won't have problem to execute my SSIS package and then get the email. However, if I simply execute the package, the entire package still can be executed successfully but I cannot get the email, which I suspect that script task does not get executed. The following is the code of my script task
public void Main()
{
string User_Email = Dts.Variables["User::UserEmail"].Value.ToString();
try
{
if (!File.Exists(Dts.Variables["User::OutputPath"].Value.ToString()))
throw new FileNotFoundException();
File.Copy(Dts.Variables["User::OutputPath"].Value.ToString(), Dts.Variables["User::DestinationPath"].Value.ToString() + Dts.Variables["User::co_num"].Value.ToString() + ".pdf", true);
AppDomain.CurrentDomain.AssemblyResolve += new ResolveEventHandler(CurrentDomain_AssemblyResolve);
SendGridMailHelper.SendOrderVerification(User_Email, "user name");
}
catch (FileNotFoundException)
{
MessageBox.Show("The file is not found in the specified location");
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
Dts.TaskResult = (int)ScriptResults.Success;
}
static System.Reflection.Assembly CurrentDomain_AssemblyResolve(object sender, ResolveEventArgs args)
{
if (args.Name.Contains("SendGrid"))
{
string path = #"F:\DLL\";
return System.Reflection.Assembly.LoadFile(System.IO.Path.Combine(path, "SendGrid.dll"));
}
if (args.Name.Contains("System.Net.Http"))
{
string path = #"F:\DLL\";
return System.Reflection.Assembly.LoadFile(System.IO.Path.Combine(path, "System.Net.Http.dll"));
}
if (args.Name.Contains("Newtonsoft.Json"))
{
string path = #"F:\DLL\";
return System.Reflection.Assembly.LoadFile(System.IO.Path.Combine(path, "Newtonsoft.Json.dll"));
}
return null;
}
To be safe, I checked the windows log and it showed the run time error when I run the package without adding check points. However, I cannot figure it out what it means. Any thoughts will be very helpful. Thank you.
Application: DtsDebugHost.exe
Framework Version: v4.0.30319
Description: The process was terminated due to an unhandled exception.
Exception Info: System.MissingMethodException
at ST_b240be27e55248ea869be51aa06a2018.SendGridMailHelper+<_SendEmail>d__7.MoveNext()
at System.Runtime.CompilerServices.AsyncTaskMethodBuilder.Start[[ST_b240be27e55248ea869be51aa06a2018.SendGridMailHelper+<_SendEmail>d__7, ST_b240be27e55248ea869be51aa06a2018, Version=1.0.6877.42064, Culture=neutral, PublicKeyToken=null]](<_SendEmail>d__7 ByRef)
at ST_b240be27e55248ea869be51aa06a2018.SendGridMailHelper._SendEmail(System.Collections.Generic.List`1, System.Object, System.String)
at ST_b240be27e55248ea869be51aa06a2018.SendGridMailHelper+d__9.MoveNext()
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
at System.Threading.ExecutionContext.RunInternal(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object, Boolean)
at System.Threading.ExecutionContext.Run(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object, Boolean)
at System.Threading.QueueUserWorkItemCallback.System.Threading.IThreadPoolWorkItem.ExecuteWorkItem()
at System.Threading.ThreadPoolWorkQueue.Dispatch()

Catch all exceptions WPF

In my App.xaml.cs, I have these codes to catch the exceptions and log them
public App()
{
SetupExceptionHandlingInApp();
// other codes
}
private void SetupExceptionHandlingInApp()
{
this.DispatcherUnhandledException += (s, e) =>
{
e.Handled = true;
//LOGGING CODE HERE
this.Shutdown(-1);
};
}
[STAThread]
public static void Main()
{
SetupExceptionHandlingInMain();
//other codes
}
private static void SetupExceptionHandlingInMain()
{
AppDomain.CurrentDomain.UnhandledException += (s, e) =>
{
//LOGGING CODE HERE
Environment.Exit(1);
};
System.Windows.Forms.Application.ThreadException += (s, e) =>
{
//LOGGING CODE HERE
Environment.Exit(1);
};
TaskScheduler.UnobservedTaskException += (s, e) =>
{
//LOGGING CODE HERE
};
}
Almost cases, I can catch the exception and log it. But the application crashes sometimes while execution, and I can't find an error logged about the exception that caused the crash.
Am I missing a method besides the methods above to catch the exception? I looked at some article on SO but almost them used these methods above.
The log4net works well because I can see all ERROR and INFO log.
EDIT
After following the suggestion of Panagiotis Kanavos, I found out the error:
Application : xxx.exe
Version du Framework : v4.0.30319
Description : le processus a été arrêté en raison d'une erreur interne dans le runtime .NET à l'adresse IP 547541C4 (54380000) avec le code de sortie 80131506.
TRANSLATE
Application: xxx.exe
Framework Version: v4.0.30319
Description: The process was terminated due to an internal error in
the .NET Runtime at IP 547541C4 (54380000) with exit code 80131506.

Perhaps you got an exception that corrupted the state of the process? From the documentation:
Starting with the .NET Framework 4, this event is not raised for
exceptions that corrupt the state of the process, such as stack
overflows or access violations, unless the event handler is
security-critical and has the
HandleProcessCorruptedStateExceptionsAttribute attribute.
Perhaps you can temporarily specify that your handler is security-critical to be able to catch the exception during debugging.

Unhandled exception at Grapevine.Interfaces.Server.HttpResponse.SendResponse

I have a server which listens to HTTP POSTs that several client make sending information. I use Grapevine as http server because methods are really simple and didn't need the complexity of ASP.
Sometimes I get this random
error:
2017-12-12 15:39:25.5642|ERROR|Omnibox_Server.Modelo.HttpServer.Controllers.OpenALPRController|System.Net.HttpListenerException (0x80004005): The I/O operation has been aborted because of either a thread exit or an application request
at System.Net.HttpRequestStream.Read(Byte[] buffer, Int32 offset, Int32 size)
at System.IO.StreamReader.ReadBuffer()
at System.IO.StreamReader.ReadToEnd()
at Grapevine.Interfaces.Server.HttpRequest.get_Payload()
at Omnibox_Server.Modelo.HttpServer.Controllers.OpenALPRController.PostPatente(IHttpContext context)
This is the
class/method:
namespace Omnibox_Server.Modelo.HttpServer.Controllers
{
[RestResource(BasePath = "/openalpr")]
public class OpenALPRController
{
private static readonly Logger Logger = LogManager.GetCurrentClassLogger();
[RestRoute(HttpMethod = HttpMethod.POST, PathInfo = "/patente")]
public IHttpContext PostPatente(IHttpContext context)
{
try
{
context.Response.StatusCode = HttpStatusCode.Ok;
context.Response.ContentType = ContentType.JSON;
context.Response.ContentEncoding = Encoding.UTF8;
var fotoOpenAlpr = JsonConvert.DeserializeObject<FotoOpenALPR>(context.Request.Payload); //<--- exception occurs here? shouldn't try/catch work?
var ip = context.Request.RemoteEndPoint;
if (fotoOpenAlpr.agent_uid != null)
Task.Run(async () =>
{
if (fotoOpenAlpr.is_parked) return;
await fotoOpenAlpr.ObtenerFoto(ip.Address);
try
{
var foto = new Foto(fotoOpenAlpr);
if (foto.IdOmnibox == 0) Logger.Info("Omnibox sin ID con IP " + ip.Address);
await foto.Procesar();
}
catch (Exception e)
{
}
});
context.Response.SendResponse(HttpStatusCode.Ok); //or maybe exception triggers here?
}
catch (Exception e)
{
Logger.Error(e);
}
return context;
}
}
}
An event is generated in the
windows log:
Application: Omnibox Server.exe
Framework Version: v4.0.30319
Description: The process was terminated due to an unhandled exception.
Exception Info: System.Net.HttpListenerException
at System.Net.HttpResponseStream.Write(Byte[], Int32, Int32)
at Grapevine.Interfaces.Server.HttpResponse.SendResponse(Byte[])
at Grapevine.Server.HttpResponseExtensions.SendResponse(Grapevine.Interfaces.Server.IHttpResponse, System.String)
at Grapevine.Server.Router.Route(System.Object)
at System.Threading.QueueUserWorkItemCallback.WaitCallback_Context(System.Object)
at System.Threading.ExecutionContext.RunInternal(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object, Boolean)
at System.Threading.ExecutionContext.Run(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object, Boolean)
at System.Threading.QueueUserWorkItemCallback.System.Threading.IThreadPoolWorkItem.ExecuteWorkItem()
at System.Threading.ThreadPoolWorkQueue.Dispatch()
at System.Threading._ThreadPoolWaitCallback.PerformWaitCallback()
Both exception log and windows log in the event viewer have the same timestamp.

From the OP:
I fixed the issue by moving the line context.Response.SendResponse(HttpStatusCode.Ok); below the try/catch. I think what happened was that sometimes TCP pipe breaks and payload is corrupt/incomplete, therefore an exception is thrown when trying to get it, and because I didn't SendResponse(OK) another exception is thrown outside the try/catch, breaking my server.

Creating an error message that reports a crash from anywhere inside an C# application

I have an executable that is written in C# which runs fine on one computer but crashes without providing an error on another computer.
Is there a class that I can add to my code that will dump all the information relating to the crash no matter where the error occurs within the code?
I have seen this post but I was hoping to create a "catch all" error handling class that would exist in my code.

Try the AppDomain exception handler:
http://msdn.microsoft.com/en-us/library/system.appdomain.unhandledexception.aspx
Code sample:
class Program
{
static void Main(string[] args)
{
AppDomain.CurrentDomain.UnhandledException += CurrentDomain_UnhandledException;
var thr = new Thread(() =>
{
Thread.Sleep(1000);
throw new Exception("Custom exception from thread");
});
thr.Start();
thr.Join();
Console.WriteLine("Done");
}
static void CurrentDomain_UnhandledException(object sender, UnhandledExceptionEventArgs e)
{
//Log information from e.ExceptionObject here
}
}
In this example a custom global exception handler is registered, and then a thread is started which throws an exception after 1 second. The global exception handler is then invoked, with the custom exception that has been thrown.

Catch completely unexpected error

I have a ErrorRecorder App, which prints the error report out and asks if the user wants to send that report to me.
Then, I have the main app. If an error occurs, It writes the error report to a file and asks ErrorRecorder to open that file to show user the error report.
So I am catching most of my errors using Try/Catch.
However, what if an error occurs that was completely unexpected and it shuts down my program.
Is there like an Global/Override method or something of that kind, that tells the program "Before shutting down if an unexpected error occurs, call the "ErrorRecorderView()" Method"

i think this is what you're after - you can handle exceptions at the appdomain level - i.e. across the whole program.
http://msdn.microsoft.com/en-GB/library/system.appdomain.unhandledexception.aspx
using System;
using System.Security.Permissions;
public class Test
{
[SecurityPermission(SecurityAction.Demand, Flags = SecurityPermissionFlag.ControlAppDomain)]
public static void Example()
{
AppDomain currentDomain = AppDomain.CurrentDomain;
currentDomain.UnhandledException += new UnhandledExceptionEventHandler(MyHandler);
try
{
throw new Exception("1");
}
catch (Exception e)
{
Console.WriteLine("Catch clause caught : " + e.Message);
}
throw new Exception("2");
// Output:
// Catch clause caught : 1
// MyHandler caught : 2
}
static void MyHandler(object sender, UnhandledExceptionEventArgs args)
{
Exception e = (Exception)args.ExceptionObject;
Console.WriteLine("MyHandler caught : " + e.Message);
}
public static void Main()
{
Example();
}
}