C#

<root dir>\MyApp
          App.exe
          Base.dll
          .\Extension\
               Extended.dll

// brush is declared as Brush brush, but is a solid brush instance

if(brush is SolidBrush)
{
  SolidBrush sb = (SolidBrush)brush;

  // Serialize the properties of the brush here

}
else if(brush is LinearGradientBrush)
{
  // And so on and so forth.

}
// Repeat for other brush types as required

Bob Dole

The internet is a great way to get on the net.

2.0.82.7292 SP6a

SELECT COUNT(userName) FROM myTable WHERE userName='DoesThisExist'

public bool UserNameExists( string username )
{
   // Connect to your database...

   // Run a query to check if username exists. 
   // NOTE: Use a paramatarized query.
   // Something like: SELECT count(*) FROM [YourUserTable] WHERE [YourUserNameColumn] = @username
}

string[] my = new string[]{ "a", "b", "c", "d", "e" };

// Find the start index of the second column:
int midPoint = (my.Length / 2) + (my.Length & 1); 

for (int i = 0, j = midPoint; i < midPoint; i++, j++)
{
    Console.WriteLine("{0}\t{1}", my[i], (j >= my.Length ? null : my[j]));
}

if (!backgroundWorker1.IsBusy)
{
           try
           {
               backgroundWorker1.RunWorkerAsync(); //cr
           }
}