I meet a system.ArgumentException: cannot create a child list for field x.
my coding as follow
Dim cn As SqlConnection
Dim da As SqlDataAdapter, da1 As SqlDataAdapter

I'm doing a notepad application for learning.
I have a problem finding anything on how to align text left, center and
right in the RichTextBox.
Couldn't find any clear answer in the group.

I've opened a bitmap from a jpg file with
Dim bmp As New Bitmap(IO.Path.Combine(origFolder, value))
' now resize the image into another bitmap and save that
where origFolder is the directory containg the image and value is its

I got this error when I preview report in Vb.net "Unknown query Engine
Error"
Is that my crystal report got something wrong ???
or my SQL server is too slow to response ??

I have a VB.NET application where I am writing emails from rows in a table.
For each email, an dialog box with an Outlook warning message appears.  I
would like
to be able to write the emails without getting this message for each email.

I know seasoned OOP-savvy developers will roll their eyes at this one, but
can anyone provide a clear explanation as to *why* one would need to use an
Interface in a VB.NET application?
Every book and article I seem to run across jumps right into "and here's how

I'm trying to prevent the beep when the tab key is pressed. It works ok on
XP but windows 2000 is ding ding ding
Here is my code:
Protected Overrides Function ProcessDialogKey(ByVal keyData As

I need to run an application each time a user shuts down their PC.  Is there
a built in way to do this in Windows XP?  Perhaps a registry entry or through
a scheduled task or will this require the creation of a Windows Service that
simply listens for the shutdown command?

I am just wondering if anyone has got any idea of setting up a new class
so that you could just print like the old ways with the printer class,
since I am writing a program that really requires simple black and white
text printing, but there is alot to print and it's needed at ...

Anyone know why this would happen... I added a reference to the SQLDMO COM
object, imported it on top of my code.. then this test code fails
Imports SQLDMO
Module Module1

Having an issue with the datagrid.... Instead of actually updating everytime
someone selects update in the datagrid, I am currently writing an XML file on
the server that consists of the datagrid changes, to which, when the "Submit"
button is selected it will then do the update ...

I am attempting to write values to the registry, but get an
UnauthorizedAccessException when I try to do a SetValue on an existing key.  
However, I can create the key, with a value, when it does not exist.
Here is a snippet of the code:

I posted this earlier with another question but did not explain myself well...  How do get a line feed character on the end of a line using the streamwriter.writeline fuction?  Following are a list of possible terminators.   I need to use the line feed, option 2, instead of the ...

Why is it so hard to find some sample code to print a pdf without a 3rd
party component?
--
I am using the free version of SPAMfighter for private users.

Can someone tell me how to calculate the number of weeks between two dates.
Your help is appreciated.
Thanks, George