I am having a little problem passing in reference of my calling class (in my
.exe)into a DLL. Both programs are C# and what I am trying to do is pass a
reference to my one class into a DLL function. When I try and compile the DLL
I get "The type or namespace name "MyForm" could ...

How do you make parameters optional in a procedure. I know I can have
multiple definitions but it would be nice if there was a way I could have
the single declaration. I thought there was a way to do that.
TIA - Jeff.

Is there an easy way to say, on textboxHover, if the text inside the box
isn't completely visible, have a popup tool come up showing the complete
contents of the box? I'm guessing I need to know if there's a way to
determine the number of pixels that some generic text takes up.  ...

I would like one DoubleClick event handler to handle all double clicks
throughout a DataGrid.  I've assigned a DoubleClick event handler to the
DataGrid and it works nifty-spiffy so long as I click outside the data.
 The trouble is, the underlying cells or columns or whatever ...

I need to pass the handle of my window (WinForm in C#) to a C library.
The WinForm does not apear to expose this property - how may I access it ?
MTIA

Dear colleagues,  we have encountered some problems.
there are some types of events in our system: business objects events,
events that fire on time, on some conditions, and on user input.
so we need some framework or library which includes persistent events

this is my first post to this newsgroup.
I have a problem with OpenFileDialog. I programmed a windows form that has a
button that opens a OpenFileDialog. If a user chooses a file and presses the
OpenFileDialogs "Open" button, the chosen file will be added to a list box.

So I have an ArrayList that gets populated with objects like:
myAL.Add(new CustomObject(parm1,parm2));
I'm consuming this ArrayList from an ObjectDataSource and would like to have
this support sorting (because it's ultimately being consumed in a GridView).

Here is my code, but the problem is I want to recreate a new file but
at the and I find that the program add the new element the old ones!!
****************************************
System.IO.File.Delete( mXmlFile);

I'm wondering how you can use the standard C# library to get the
"windows" directory?  (e.g. "c:/windows").  I need to specify the
location of a config file in a service, and I don't want to hard-code
anything.

Can somebody explain to me why VS 2005 has been available in the US for
a few weeks now, but seems to be nowhere available in Europe yet (based
on amazon.co.uk / amazon.de listings) ?
Is it to give the US developers a jump-start on us Olde Worlde

Is it good pratice to make base class properties virtual? For example:
public abstract class Person
{
      protected string name;

I have a bog-standard ListView control in a v1.1 C# WinForms project, with
three colums, Details View.
There is "Select All" button under the ListView control with the following
code:

I am designing a new class hierarchy and I've already run into a bit of a
bump in the road.   I have this structure so far;
class CodeGen
   class CodeGenHeader : CodeGen

String.IndexOf is case sensitive so I need to covert to lower before testing
the string contains a given string. In VB this is:
Instr(Lcase(StringToTest, "StringToCheckFor"))
What is the C# equivilent? The closest I've comeup with is: