How can I prevent running a program multi times??
thanks in advance

I'm trying to port a piece of Java LDAP conneciton code to DOTNET.
I've done LDAP in DOTNET before, but I keep getting a very strange
message.  The Java code looks like:
  public static boolean authenticate(String username, String password)

I want to use reflection to do some special logic on properties of a
specific type (or those that inherit from that type)
Below is an example of what I would like to do.  However, I get a
complier error saying that the property will never be of the provided

Is there a way to lock records and/or files in multi user application, using
C#?
Adrian.

I am learning C# out of books - and soon will be attending some courses.  I
like to write a bit of code and see what happens, but I find that I get
stuck at the same spot each time.
my code is simple and has 2 classes - the form class and the getdata class.

I'm trying to use a property grid, and what I'm trying to do seems to
really elude me.  I've been using the property grid for a short period
of time, and this is the first thing I haven't been able to do.
I have some products... like t-shirts...  and these products have

Can somebody show me how to direct output the sound inputed from microphone
to soundcard?
Thanks

If I want to prevent creation of object for a class.
I can accomplish this by using different technique.
One way of doing this is to define the class to be abstract even if all the
methods and property is concrete.

How can I set a DefaultValue for an array property?  I don't have a project
that uses this anymore, but still am curious.  Of all the replies I've
posted here, a simple thing like this is my "gotcha!".  :***(
I have a TypeConverter class that inherits from ArrayConverter and it ...

I want to create hyperlinks in my Word document using Office API. how
can i do this. i want ot do this using a vb.net application.  plz tell
me how i can use this using the office API's in vb.net and can create
an applilcation that will do the work i need for me.

Hello, I´m trying to use Activex but without using a Global varible or
internal member of the class. Is that posible? I must do it with a code
but
without a control. I ´ll apreciate if anybody can help me with this.

I want to use a ready made class (ie a System.Drawing .Pen) and make it
available to my entire application, but I'm getting stupid.
How do I do this? Or point me in the right direction.
Thanks

Dear Experts,
Could you please provide you comment to me? Thanks
An Exhibition has many Halls, and different Booth Types
If exhibition is not exist, hall and booth type will not exist too.

I would like to show a small dialog box ( like tray icon popup screen
balloon) from my main windows program. How can I do this?

i'am looking for manipulate a html tag without runat=server.
Because :
1 : runat server tag : add a uniqid (not manipulated with javascript/dom in
dynamic code)