So I’ve got this dataset that was built with the designer. All is well except
that the Select command needs to be generated at runtime for app-specific
reasons.
I thought I would do something clever, which was add a version of Fill() to

How can I generate a Parameter if I cannot retrieve the SqlDbType from
an item in a row of a DataSet?
Is it safe to just take the object I retrieve from the DataSet and take
the following constructor for the Parameter:

I have two access databases. First contains a table which contains
userids. The second one contains the users records.
I tried to create a dataset which will query in these two databases and
get two datatables. I tried to add relation between these two

I'm hoping somebody can help me with the following problem that has occurred
to me.
Suppose I have two tables in an SQL Server database. Let's call these tables
A and B. Assume that A has two fields: a primary key and another holding a

I know this is easier to do with a datareader and a listview, but can
it be done with a tableadapter and a dataset?
I want to manipulate the data prior to it reaching the dataset,   For
instance, data is stored as Firstname and Lastname and sometimes there

In ADO.NET is there anyway to save the contents of an datatable
directly to an Access table without having to loop through and generate
a SQL insert query string?  I figure there's probably a way to do it as
one chunk.

I'm using a detailsview control with an SqlDataSource control.  My
Update query isn't working, and I've narrowed it down to the optimistic
concurrency parameters - i.e. when I comment them out of the query, it
works.  What seems to be happening is that if a field is NULL when it

I am near completion of a project consisting (broadly) of a web app, a web
service and a SQL server - the usual sort of configuration. Both the SQL
server and the web service are tasked with dealing with large amounts of
data per user; and a large number of users.

I am truing to add a calculated column to my data table. The column must
show something like: "Date: 2005-01-23"
I underestand that we can use Convert to convert a DateTime value to string.
How can I convert it in specific date format?

I have a dataset that is filled with data from the db.  The user has
modified that data in one of the tables where some of fields should now be
null.  I have played around with delete the row and adding a new row but
have problems with the update.  Do you think I should just ...

I am having a problem with asp.net 2.0 that I did not have with 1.1. In
C# code behind, I want to read data via a GetData(int productID) class
to obtain several columns of data from one row of one table in a Sql
2000 database which I need to calculate some values needed to be

M. Chand is a .NET consultant, author and the admin and founder of C#
Corner. He has been working with .NET technology since pre beta
releases.
http://www.dotnetwire.com/frame_redirect.asp?newsid=3171

I installed SQL Server 2005 Express on one of my development machine, I had
since then having problem connecting to a SQL Server 2000 (On a cluster)
database. The problem persist even after I remove SQL Sever 2005 Express.
The following is the error message:

I have a datagrid (C# Windows Forms App) bound to a dataset. One column
in the dataset is a calculated column based on an expression that
simply subtracts the value in one column from the value in another
column. I created the dataset using a dataset control and the

I have some difficulties in understanding how to use the connection,
dataset, datareader in a form.
Let's suppose I want to create a datareader and when I push a button to
bring another row from the dataset.