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by: pmud |
last post by:
Hi,
I need to display columns in a data grid based on 7 different queries. Now I
have 32 questions:
1. Is it possble to have 1 single data adapter with 7 queries & 1 data set
or do I need to have a separate data adapter & a separate data set for each
select query?
If thats possible then how?
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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: William |
last post by:
After much frustration I was able to update my data store via code only.
Using the data adapter was the only way I was able to set up all the objects
written in my code. Basically, I cheated by creating an adapter and then
copy, paste, modify it's code to suite my needs. This was the end result:
Private sub updateTable( )
Dim myData As DataSet
'Command is a form level oledbcommand object
Dim Adapter1 As New OleDbDataAdapter(Command)
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by: Brad |
last post by:
I have written some code to manipulate data/records in a MASTER (order
header) and DETAIL (order details) tables.
What I have written is too extensive to post but essentially trying to:
1. Assign to a datarow (dr1) the first record of the MASTER table
2. Assign to another datarow (dr2) the second record of the MASTER table
3. If dr1.field1 = dr2.field1, then proceed, otherwise do stop
4. Assign to a third datarow (dr3) the first record...
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by: simon |
last post by:
I use my functions to create adapter and fill dataSet:
funkcije.createAdapter("c_CPOSkupaj", False, myParams).Fill(ds,
"brezReklam")
If I use this function another time to fill dataSet with other table, I get
an error message, like that the parameter already exists.
The SqlParameter with ParameterName '@datumZ' is already contained by
another SqlParameterCollection
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by: GatorBait |
last post by:
Hi all,
I am having a problem with my data adapter update command. I have
generated the data adapter in the IDE and then I built a dataset. The
dataset can get changed in the program and I would like to update the
database. I tried to do so using the update method of the data
adapter, but the table is not getting updated. While debugging I made
sure that the dataset has the correct value prior to calling the update
method. I think...
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by: Randy |
last post by:
Hi,
Trying to pass along a table row delete to the datasource, but I'm
crashing. Here is the code:
Private Sub btnDeleteIngr_Click(ByVal sender As Object, ByVal e As
System.EventArgs) Handles btnDeleteIngr.Click
Dim vbResponse As Integer
vbResponse = MessageBox.Show("Are you sure that you want to
delete " + tbIngr.Text + "?", "Confirm Delete",
MessageBoxButtons.OKCancel, MessageBoxIcon.Warning)
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by: Suresh |
last post by:
Hi All,
I am fetching a dataset from the database under some condition. After
this I create a data table. Traverse in the original dataset & add
each row to created data table as it is through LoadDataRow method.
After adding the row I just update 4-5 columns out of 20 columns in
the row. After entire looping I fire the AcceptChanges method on data
table. After this I am trying to update this data back to database in
two ways -
1) Merge...
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by: SAL |
last post by:
Hello,
I have a Dataset that I have table adapters in I designed using the designer
(DataLayer). I have a business logic layer that immulates the DataLayer
which may/may not have additional logic in. My business classes are, of
course, decorated with the:
<System.ComponentModel.DataObject() attribute.
So, I drop a GridView on a webform and set its datasource to an
ObjectDatasource which in turn is using one of my business logic...
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by: insirawali |
last post by:
Hi all,
I have this problem, i need to know is there a way i cn use the data
adapter's update method in this scenario.
i have 3 tables as below
create table table1{
id1 int identity(1,1)
Constraint pk_table1 Primary Key,
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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...
|
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: TSSRALBI |
last post by:
Hello
I'm a network technician in training and I need your help.
I am currently learning how to create and manage the different types of VPNs and I have a question about LAN-to-LAN VPNs.
The last exercise I practiced was to create a LAN-to-LAN VPN between two Pfsense firewalls, by using IPSEC protocols.
I succeeded, with both firewalls in the same network. But I'm wondering if it's possible to do the same thing, with 2 Pfsense firewalls...
|
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by: adsilva |
last post by:
A Windows Forms form does not have the event Unload, like VB6. What one acts like?
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by: bsmnconsultancy |
last post by:
In today's digital era, a well-designed website is crucial for businesses looking to succeed. Whether you're a small business owner or a large corporation in Toronto, having a strong online presence can significantly impact your brand's success. BSMN Consultancy, a leader in Website Development in Toronto offers valuable insights into creating effective websites that not only look great but also perform exceptionally well. In this comprehensive...
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