C#

Paw Jershauge wrote:

Try Parse: 0 milliseconds

Paw Jershauge wrote:

catch (Exception) {}

Paw Jershauge wrote:

int.Parse("x");

PIEBALDconsult wrote:

You don't find that a little suspicious? I expect the whole for loop got optimized away, I've had that happen before. Try summing up the values and print the sum after the loop to ensure that it doesn't it doesn't get optimized.

PIEBALDconsult wrote:

Paw Jershauge wrote:
catch (Exception) {}

I certainly didn't suggest that.

PIEBALDconsult wrote:

Paw Jershauge wrote:
int.Parse("x");

That's just silly.

Stopwatch sw = new Stopwatch();
int ParseOutPut = 0;
sw.Start();
for (int i = 0; i < 1000; i++)
{
    try
    {
        int demo = 0;
        if(i % 3 == 0)
            demo = int.Parse("x");
        else
            demo = int.Parse("1" + i.ToString());
        ParseOutPut += demo;
    }
    catch (Exception) { }
}
sw.Stop();
Debug.WriteLine("Parse [" + ParseOutPut + "]: " + sw.ElapsedMilliseconds);
sw.Reset();
int TryParseOutPut = 0;
sw.Start();
for (int i = 0; i < 1000; i++)
{
    int demo;
    if(i % 3 == 0)
        int.TryParse("x", out demo);
    else
        int.TryParse("1" + i.ToString(), out demo);
    TryParseOutPut += demo;
}
sw.Stop();
Debug.WriteLine("Try Parse [" + TryParseOutPut + "]: " + sw.ElapsedMilliseconds);

With great code, comes great complexity, so keep it simple stupid...

System.Diagnostics.Stopwatch sw = new System.Diagnostics.Stopwatch() ;

int demo = 0 ;

sw.Start() ;

for ( int i = 0 ; i < 100000000 ; i++ )
{
    demo += int.Parse ( args [ 0 ] ) ;
}

sw.Stop() ;
System.Console.WriteLine ( "Parse: {0} {1}" , sw.ElapsedMilliseconds , demo ) ;

demo = 0 ;

sw.Reset() ;
sw.Start() ;

for ( int i = 0 ; i < 100000000 ; i++ )
{
    int temp ;
    int.TryParse ( args [ 0 ] , out temp ) ;
    demo += temp ;
}

sw.Stop() ;
System.Console.WriteLine ( "Try Parse: {0} {1}" , sw.ElapsedMilliseconds , demo ) ;

Dave Kreskowiak wrote:

leave the data collection code running and not worry about killing the thread

Jacob Dixon wrote:

Users don't like to wait

Jacob Dixon wrote:

cancel a form close then abort the threads

Jacob Dixon wrote:

check if a thread is alive on FormClosing

using ( WMI wmi = new WMI() )
{
    Application.Run ( new MyForm ( WMI ) ) ;
}

Jacob Dixon wrote:

Well even if I called a abort on a thread will it abort during the call to WMI or wait for it to finish?

Jacob Dixon wrote:

I'm a little new to using threads like this, but creating a new thread (not as background) will run even if the application is closed correct?

public delegate void UserRetrievalDelegate();
public event UserRetrievalDelegate UserRetrievalFinished;

private void frmMain_Load(object sender, EventArgs e)
{
    UserRetrievalFinished += new UserRetrievalDelegate(frmMain_UserRetrievalFinished);
}

void frmMain_UserRetrievalFinished()
{
    PopulateUsers();
}

// Gets users from active directory
private void FillUsers()
{
    users = new List<User>();

    LDAP ldap = Login();

    if (ldap != null)
    {
        PrincipalSearchResult<Principal> usrs = ldap.AllADUsers();
        foreach (Principal principal in usrs)
        {
            // Create a new User object (gets more information about the user and stores it)
            User temp = ldap.GetUserInfo(principal.Name, "name");

            // Add the User object to our private list
            users.Add(temp);
            temp = null;
        }

        UserRetrievalFinished();
    }
}

private void GetServices()
        {
            WMI_Commands wmi = new WMI_Commands(Username, Password,
                System.Management.ImpersonationLevel.Impersonate, System.Management.AuthenticationLevel.Default);

            List<Services> services = wmi.GetServices(NetBios);
            if (!this.IsDisposed)
            {
                foreach (Services s in services)
                {
                    AddServices(s);
                }

                SetPBVisible("pbservices", false);
            }

            services = null;
        }

//The event that will be fired upon completion
private delegate void ApplicationsLoadedDel(List<Product> apps);
private event ApplicationsLoadedDel ApplicationsLoaded;

private void frmMain_Load(object sender, EventArgs e)
{
   //Create the new thread
   appThread = new Thread(new ThreadStart(GetApplications));
   appThread.IsBackground = true;

   //add the event handler
   this.ApplicationsLoaded += AddApplications;
   
   //Start the thread
   appThread.Start();
}

private void LoadApplications()
{
     //Just run the WMI_Commands and return the apps
     WMI_Commands wmi = new WMI_Commands(Username, Password,
                            System.Management.ImpersonationLevel.Impersonate, 
                            System.Management.AuthenticationLevel.Default);

     //Get the list of apps
     List<Product> products = wmi.InstalledApplications(NetBios);

     //Raise the event
     ApplicationsLoaded(products);
}

Delegate void AddApplicationsDel(List<Product> products)

private void AddApplications(List<Product> products)
{
   if (this.InvokeRequired)
      this.Invoke(new AddApplciationsDel(Address of AddApplications),
                  new Object() {products});

   foreach (Product p in products)
   {
       AddApplication(p);
   }

   products = null;

   SetPBVisible("pbapplications", false);
}