C#

Wjousts wrote:

It still mystifying as to why the firewall blocks activity on a port when not connected to the network

Assembly assembly = Assembly.GetExecutingAssembly();

// Find out from config file which ContinentFactory to create
string continentFactory = ConfigurationSettings.AppSettings["ContinentFactory"];

Binder binder = null; 

// Create ContinentFactory instance
Type continentType = assembly.GetType(continentFactory);
object[] args = null;
ContinentFactory continentInstance = (ContinentFactory) continentType.InvokeMember(
	null,
	BindingFlags.DeclaredOnly | 
	BindingFlags.Public | BindingFlags.NonPublic | 
	BindingFlags.Instance | BindingFlags.CreateInstance, binder, null, args
);

// Create AnimalWorld instance
string animalWorld = "PatternsTest.AnimalWorld";
Type worldType = assembly.GetType(animalWorld);
args = new object[] { continentInstance };
AnimalWorld worldInstance = (AnimalWorld) worldType.InvokeMember(
	null,
	BindingFlags.DeclaredOnly | 
	BindingFlags.Public | BindingFlags.NonPublic | 
	BindingFlags.Instance | BindingFlags.CreateInstance, binder, null, args
);


// Call AnimalWorld.RunFoodChain
worldInstance.RunFoodChain();


);

Peterson Luiz wrote:

The problem begun when I tried doing this updates before the userControl has been displayed (like when it is on a hidden tagpage).

class MyForm : Form
{
   MyControl control;
   public MyForm()
   {
      InitializeComponent();
      IntPtr val = control.Handle;
      Console.WriteLine(val.ToString());
   }
}

kubben wrote:

Just for fun you

Malcolm Smart wrote:

- is it not good practice then to call GC.Collect?

class pinger
{
   public static int PingsOutstanding = 0;
                    
   public string IP;
   
   public void PingIt()
   {
      try
         {
            //keep count of our pings
            System.Threading.Interlocked.Increment(ref PingsOutstanding);
            Ping ping = new Ping();
            ping.Send(IP, 100);
         }
         catch (Exception e)
         {
            //do really secret stuff
         }
         finally
         {
            System.Threading.Interlocked.Decrement(ref PingsOutstanding);
         }
     }
  }   


//snip loads of stuff to show just the loop to fire off the threads

foreach (string ipAddress in _check.GroupData) //a list of IP Addresses                
{
   //create a pinger class
   pinger p = new pinger();
   p.IP = str;//set the IP address in a nice public member.....demo code - honest!

   //create a new thread and launch the ping
   new System.Threading.Thread(new System.Threading.ThreadStart(p.PingIt)).Start();
}


//keep checking the Pinger static count
while (pinger.PingsOutstanding > 0)
{
   //we're not done yet..
  System.Threading.Thread.Sleep(500);
}
//

Malcolm Smart wrote:

It seems the ASync call of Ping doesn't like havnig hundreds of them kicking about.