I have a collection class that holds a number of clauses. One particular
type of clause has a member variable called type - this is an enum.
How do I check this collection class to see if it has a clause of a
particular type?

I have a collection of classes descending from a single root class
(let's call it RootClass).  They all currently have a property of
Logical, of type Logical.  However they actually return a subclass of
Logical (LogicalA, LogicalB).  I'm currently casting them to the right

How to create files and validate them using javascript

How to ensure that a form is disposed?
When I work with modal forms I do the following:
using (Form1 frm = new Form1())
{

I have a modem connected to the serial port and I can communicate using
Windows HyperTerminal.
When I try to send a 'AT' command using the SerialPort object I get receive
timeout errors.

I have an arraylist.
I copy the objects in this arraylist to a second arraylist.
When I edit the objects in the second arraylist then the objects in the
first arraylist are changed too.

     i would like to know how to add a reference automatically on
starting a project. i.e like we have system,system.xml automatically
getting added when u start a project, similary i have a dll which needs
to be added automatically when u start a test project in vs 2005. can

Open Source HTML Parsers in C#
Hi,
Im looking for HTML parser developed in C# which i can extend according to
my needs are there any??

Is it possible to distribute .NET desktop appliation as "Trial" version (
limiting the usage to certain number of days ) and then for full time usage.
Like the commercial softwares , they offer "Trial/Demo" versions and after
purchase they work for full time and registered.

I am creating a class that is derived from one that comes from an
auto-generated code from a webservice reference. The base class has
certain XML attributes that are inherited in my derived class and are
printed on the properties when trying to serialize the object. How can I

I set the thread culture in MAIN() as below in order to show the date in
format DAY/MONTH/YEAR, but the datagridview alway show the date in M/d/yyyy.
How to set the default Date format from windows xp control panel by C#
coding  or is that any way to set the application date ...

I need to capture the shutdown events.
I could listen to the SystemEvents.SessionEnding Event but this only tells
me if the system log offs or shuts down but not if the shutdown is a suspend
or hibernate or reboot....

I need to rasterize a svg file in a .NET project. Currently I'm trying
to use an open source library called librsvg. I've completed all the
dlls and started writing the following wrapper:
[DllImport("librsvg-2-2.dll", SetLastError=true, CharSet =

It seems like a simple question, but I am unable to find any succinct answer
to this problem.
If I am provided a UNC, how can I convert it to it's absolute path on the
remote machine.

I'm trying to trow in another thread into my program. What it's for is
to ping a list of IPs. When it runs the Ping portion of the code, it
assigns a value of 1 or 2 (pingable / not pingable) to a global int. It
works great, however it's slow... If I run the ping portion of my code