Hi. I have an ArrayList of custom objects that have the following properties:

• FileName
• FilePath
• CurrentFolder
• TopLevelFolder

I then need to do a BinarySearch (or some other quick search) on the FileName property on all the objects in the ArrayList in .NET. In other words, I need to find the object in the ArrayList with the same FileName as the one I'm searching on.

Syntax for the ArrayList's BinarySearch is this; but how do you do this for an object's property in the arraylist?

  public static void FindMyObject( ArrayList myList, Object myObject )  {
    int myIndex=myList.BinarySearch( myObject );
    if ( myIndex < 0 )
       Console.WriteLine( "The object to search for ({0}) is not found. The next larger object is at index {1}.", myObject, ~myIndex );
    else
       Console.WriteLine( "The object to search for ({0}) is at index {1}.", myObject, myIndex );
  }