I need to add new rows into a datagridview manually.. but when I first
added the new row I got an error of:
No row can be added to a DataGridView control that does not have
columns. Columns must be added first.

Most applications, including Windows Explorer, show some sort of
'wait' dialog with animation when a lengthy operation is going on. For
example, When the Windows Explorer is searching for something, it
shows a small dialog with a moving flashlight. I examined the

Please excuse me if my question is not so clever....
I just learn the stuff of database and datagridview class and I have a
question. After download a sample in CodeProject.com
(http://www.codeproject.com/KB/vista/Firebird_2_and_Images.aspx) and trying

I want to count activity in a given month. I'm trying to do so with
the linq code below however it reports:
Error    1    'a' is inaccessible due to its protection level
        var ActivityByMonths = from a in db.ActivityDatas

I am using VS2008.
I have a Windows Service application which creates Crystal Reports.  This is
a multi theaded application which can run several reports at one time.
My problem - there is a memory leak someplace. I can not detect the memory

A bit of background. I have been asked to offer an independent
programming
study for high school students. I thought it would be really cool to
challenge

My requirement is to display anit-aliased text across my application.
The technique that MSDN provides for rendering anti-aliased text, can
be used when drawing individual text strings. However, i want that
which ever label, button text i set, it should be rendered anit-

In my IDE VS 2008, the toolbox is hide, the key combination ( Ctrl +
W,X) no work fine and need the toolbox for drag an drop controls.
How re-install or re-call the toolbox?
TIA,

I'm having an issue that I can't quite figure out.  I have a
PictureBox that initially sets a picture from an embedded resource.
The user clicks a listview item and if an image url is available, it
sets the ImageLocation property to the url of the image and loads it.

if i derive a reference to a control on a winform
(ie Control activeControl = somecontrol on the form) how can i test
if that control has a validating or validated event and more
importantly how can i tell that those events have finished so that i

What good is C# Reflection, other than to find out what types are in
an assembly?  And to dynamically invoke methods in an assembly (.dll
or .exe)?
Also, bonus question, can you use Reflection to build a compiler?  One

This question may be stupid.
enum MyValues
{
 Value1, Value2, Value3, Value4, Value5

As title

In MCF apps we get a help section of our application solution which holds
HTML documents and the Help Workshop HPP files that compile every time you
build your app... is there anyway to do this in C#? I tried messing with the
HHC.EXE HTML HelpWorkshop compiler and post build ...

Sir/Madam
I have just installed my Visual Studio.NET 2003 Academic Edition the second time and i am requested to activate it. Please how do i go about it and which website do i use to accomplishe this.
Please i am not talking about the DVD type.
Thanks