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by: George Grodentzik |
last post by:
I created a typed dataset from which I am trying to access the data. When I use the following code to access a row
string name =dataset.person.firstName
I receive an error System.IndexOutOfRangeException as if there are no rows. Yet when I dump the data to a file I receive (sample of file)
<?xml version="1.0" standalone="yes"?><Dataset1 xmlns="http://tempuri.org/Dataset1.xsd"><Table><accountNo>1</accountNo><firstName>John ...
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by: prodirect |
last post by:
Hi all,
I hope someone can help me. I've recently created a database and wanted to
put it up on an ftp sight so that multiple people could access the same
tables at the same time from different geographical locations. I have been
completely unsucessful in acheiving this goal so far however.
Things I have tried:
Create a shortcut to ftp sight via browser then tried to map local drive to
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by: KimD |
last post by:
I'm filling a dataset with the return of a stored procedure. The dataset
contains a number of tables which I am naming within the stored procedure,
however when I try to access the tables using the names assigned I get
errors. It doesn't seem to be assigning the names correctly within the stored
procedure - instead it uses default names: Table, Table1 etc.
e.g. Accessing using aDataSet.Tables
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by: James Zhuo |
last post by:
Accessing Items in a Collection works with the as suggested by Kevin and
Chris (thx)
But when i tried to use the same technic with databinding within the aspx
file, it doesn't seem to work.
This is the aspx part that i am talking about
<asp:DataGrid id="dgThreads" runat="server" AutoGenerateColumns="False">
<Columns>
<asp:TemplateColumn HeaderText="Databases">
<ItemTemplate>
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by: jqpdev |
last post by:
Hello all...
I'm coming from a Borland Delphi background. Delphi has a specific
component called a Data Module. In the designer the Data Module behaves
like a windows form. A developer can drop non-visual (controls) on the data
module surface and wire them up and create procedures, functions, event
procedures. In the source file (code behind file) the Data Module is a
class, and the dropped components are public properties. The...
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by: Mervin Williams |
last post by:
I am building a web application that will have a single form that will be
populated with data from 8-10 tables. The easiest way to implement the data
tier would be to use DataSets and Data Adapters for each table. But, is
that the optimal approach?
How do I optimize the back-end data retrieval and corresponding updates
(inserts, updates, and deletes) within the .NET Framework?
Thanks in advance,
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by: Rick |
last post by:
The data adapter wizard allows you to add more than one
table, but that doesn't seem to work right when setting up
a dataset. Some of the documentation I have read states
that only one table should be selected per data adapter,
and then you use a DataRelation object to pull join them
together. Okay, if that's the case then fine, but why
would the data adapter allow you to add more than one
table if this is not how it is supposed to work....
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by: Aaron |
last post by:
Hi,
It is possible to establish relationships between tables within a
dataset and this allows some useful features. For example, given a row
from a table you can use GetParentRow, GetParentRows, GetChildRows.
However, I don't see a good way to represent data from multiple dataset
tables within a single datagrid (although I can think of at least one
bad way). For example, if you have a Invoice table which instead of
having an company...
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by: michael sorens |
last post by:
I have successfully bound an XmlDocument to a DataGridView but all fields
seem to be strings. I want to retrofit appropriate datatypes on some of
the fields. Let me take this in 2 parts.
Part I:
I found the ValueType field, leading me to believe that I could say
dataGridView.Columns.ValueType = typeof(Double);
dataGridView.Columns.ValueType = typeof(Integer);
etc.
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by: marktang |
last post by:
ONU (Optical Network Unit) is one of the key components for providing high-speed Internet services. Its primary function is to act as an endpoint device located at the user's premises. However, people are often confused as to whether an ONU can Work As a Router. In this blog post, we’ll explore What is ONU, What Is Router, ONU & Router’s main usage, and What is the difference between ONU and Router. Let’s take a closer look !
Part I. Meaning of...
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by: Hystou |
last post by:
Most computers default to English, but sometimes we require a different language, especially when relocating. Forgot to request a specific language before your computer shipped? No problem! You can effortlessly switch the default language on Windows 10 without reinstalling. I'll walk you through it.
First, let's disable language synchronization. With a Microsoft account, language settings sync across devices. To prevent any complications,...
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by: Oralloy |
last post by:
Hello folks,
I am unable to find appropriate documentation on the type promotion of bit-fields when using the generalised comparison operator "<=>".
The problem is that using the GNU compilers, it seems that the internal comparison operator "<=>" tries to promote arguments from unsigned to signed.
This is as boiled down as I can make it.
Here is my compilation command:
g++-12 -std=c++20 -Wnarrowing bit_field.cpp
Here is the code in...
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by: jinu1996 |
last post by:
In today's digital age, having a compelling online presence is paramount for businesses aiming to thrive in a competitive landscape. At the heart of this digital strategy lies an intricately woven tapestry of website design and digital marketing. It's not merely about having a website; it's about crafting an immersive digital experience that captivates audiences and drives business growth.
The Art of Business Website Design
Your website is...
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by: Hystou |
last post by:
Overview:
Windows 11 and 10 have less user interface control over operating system update behaviour than previous versions of Windows. In Windows 11 and 10, there is no way to turn off the Windows Update option using the Control Panel or Settings app; it automatically checks for updates and installs any it finds, whether you like it or not. For most users, this new feature is actually very convenient. If you want to control the update process,...
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by: tracyyun |
last post by:
Dear forum friends,
With the development of smart home technology, a variety of wireless communication protocols have appeared on the market, such as Zigbee, Z-Wave, Wi-Fi, Bluetooth, etc. Each protocol has its own unique characteristics and advantages, but as a user who is planning to build a smart home system, I am a bit confused by the choice of these technologies. I'm particularly interested in Zigbee because I've heard it does some...
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by: isladogs |
last post by:
The next Access Europe User Group meeting will be on Wednesday 1 May 2024 starting at 18:00 UK time (6PM UTC+1) and finishing by 19:30 (7.30PM).
In this session, we are pleased to welcome a new presenter, Adolph Dupré who will be discussing some powerful techniques for using class modules.
He will explain when you may want to use classes instead of User Defined Types (UDT). For example, to manage the data in unbound forms.
Adolph will...
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by: 6302768590 |
last post by:
Hai team
i want code for transfer the data from one system to another through IP address by using C# our system has to for every 5mins then we have to update the data what the data is updated we have to send another system
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by: muto222 |
last post by:
How can i add a mobile payment intergratation into php mysql website.
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