*.dannyg

Using a recursive function can be very expensive as you’re stack will get larger and larger as you need to store in memory a pointer to the last function on top of the current function. 

The other thing that can happen is that using a standard integer in .NET can only hold up to a certain amount of numbers.  The below example, handles both scenarios.

   1:  void Main()

   2:  {

   3:      fib(5);

   4:  }

   5:   

   6:  void fib(int size)

   7:  {

   8:      var fibArray = new System.Numerics.BigInteger[size];

   9:      

  10:      fibArray[0] = 1;

  11:      fibArray[1] = 1;

  12:      

  13:      for (var i = 2; i < size; i++) 

  14:          fibArray[i] = fibArray[i-2] + fibArray[i-1];

  15:          

  16:      for (var i = 0; i < size; i++) fibArray[i].Dump();

  17:   

  18:  }

Wanted to do a refresher on delegates before learning more about LINQ

delegate void Callback();

void Main()

{

    MakeRequest(AfterRequest2);

}

private void MakeRequest(Callback callback)

{

    "Request Made".Dump();

    callback();

}

private void AfterRequest()

{

    "Stuff done after request".Dump();    

}

private void AfterRequest2()

{

    "Different stuff done after request".Dump();    

}

Here is another sample I played with. This one uses anonymous delegates and outer variables.

  delegate bool GreaterThanHandler (int first, int second);

  void BubbleSort(int[] items, GreaterThanHandler greaterThan)

  {

        int i;

      int j;

      int temp;

      for (i = items.Length - 1; i >= 0; i--)

      {

          for (j = 1; j <= i; j++)

          {

              if (greaterThan(items[j - 1], items[j]))

              {

                  temp = items[j - 1];

                  items[j - 1] = items[j];

                  items[j] = temp;

              }

           }

        }

  }

  bool GreaterThan(int first, int second)                     

  {

      return (first > second);

  }

  bool LessThan(int first, int second)

  {

        return (first < second);  

  }

  void Main()

  {  

      int i;

      int[] items = new int[] { 1,2,3,4,5 };

      int swapCount = 0;

      BubbleSort(items, delegate(int first, int second) 

      {

           bool swap = (first > second % 2);

         if (swap) swapCount++;

         return swap;      

      });                           

      for (i = 0; i < items.Length; i++)

      {

          items[i].Dump();          

      }

      "Number of swaps: ".Dump();

      swapCount.Dump();

  }

Sometimes when an ASP.NET page loads up from the root of a directory, the page name is not revealed via HTTP headers.  If it’s a webforms application, simply scroll down the Postback form section. (id=”aspnetForm”)

Look at the action attribute.  See the sample below.

<form name="aspnetForm" method="post" action="Home.aspx" id="aspnetForm">

Technorati Tags: asp.net,aspnet,net,http

Ever want to run ASP.NET development server without having to fire up Visual Studio Debugger.

You can create your own scripts or commands by being able to access this.

%WINDOWS PATH%\Microsoft.NET\Framework\v2.0.50727\WebDev.WebServer.exe

Here is the command line options as shown without setting any parameters.  Enjoy!

I was facing some issues getting Crystal Reports XI Release 2 to install.   The installer was complaining that .NET 1.0 or 1.1 should be installed.   This was kind of a confusing message, since .NET 1.0 and 1.1 were both installed on the box.

The workaround is to uninstall all versions of .NET except 1.0 and 1.1 temporarily.  In my case I had to uninstall .NET 2.0, 3.0, and 3.5 to get this to work.  Once it was completed installing, I reinstalled all the uninstalled versions of .NET.

First thing to do is get Red Gate’s .NET Reflector.  Drop the assembly and run the disassemble.  You should see in the Assembly Metadata metadata that says

Debuggable("True, True")