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by: Ahmed Zammar |
last post by:
I need a bit of a hand here. I was a connection to a live database.
It is being displayed in a data grid
I'm using a dataset to grab the changes.
Once the modifications are done, how do I send all of those changes to the
database.
If you know how to accomplish this, I could really use a hand.
thanks.
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by: Sagaert Johan |
last post by:
If i delete e record through the dataView ,the record is deleted in the
underlying dataset, but when calling the dataadapter.udate method the
database is not updated.(altough the record is deleted from the dataset )
(the haschanges record returns false )
Why ?
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by: Johann Blake |
last post by:
I'm not sure that I entirely understand the purpose of the
AcceptChanges methon in a DataView. I added a new record to a DataView
and noticed that its RowState indicated it as being "Added". If I
execute the Update method on an adapter for the table that the DataView
is based on, the new record will indeed be written to the database. But
if I call AcceptChanges prior to executing the Update method, the
RowState for the new record is...
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by: Tim |
last post by:
Hi Guys,
I have a situation where I have a grid loaded with data. It is not data
bound. Clicking an image opens up another form that allows the change of
the data in the grid.
Right now the changed data (1 row) is written to the DB and the whole
grid is reloaded from the DB which now incorporates the change.
My question is can I update the data in a data view? That way I can
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by: Jason L James |
last post by:
Hi all,
does anyone know if I can create a dataview
from multiple datatables. My dataset is constructed
from four separate tables and then the relationships
are added that link the tables together. To make
data entry easier I would like to combine selected
columns from the four tables onto a single dataview that
could be used as the datasource for a datagrid
control. The distinct updates, insert ans delete
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by: Lucas Tam |
last post by:
Is there a way to call DataAdapter.Update from a Dataview when I have no
reference to the DataAdapter?
i.e. The DataView is a class variable however the dataadapter is a local
variable in a sub procedure. From another sub procedure is it possible to
call a dataadapter.update or similar?
Psuedo code is as follows:
Dim _dv as dataview
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by: William LaMartin |
last post by:
In the past, I have filled a datagrid with data from an Access database
table using a data adapter and dataset, where I used the OleDbCommandBuilder
to have the program create the insert, delete and update commands
automatically for the dataadapter. I think those database tables had no
more than 10 or 12 fields. Then to save the changes in the datagrid to the
database, I simply evoked the dataadapter update command. No problems.
...
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by: Zorpiedoman |
last post by:
I keep getting a concurrency exception the second time I make a change and
attempt to update a dataadapter. It appears this is by design, so there must
be something I can do to avoid it.
Example:
I have a dataadapter that contains one table with one row. I change the
value of the 'FisrtName' column in that row from Jack to John. I call
..update on the dataadapter it goes through fine. Now I change that same
column in that same row...
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by: George |
last post by:
Got a question about the side effect of DataAdapter.Update() and
DataTable.GetChanges().
Say I set up a DataTable and a DataAdapter in a class. Delete (Not remove)
a row in the data table and call the following method.
public void JobListDataTableFromAccessCommitChange()
{
System.Data.DataTable oChangeDataTable;
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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: 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: 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: agi2029 |
last post by:
Let's talk about the concept of autonomous AI software engineers and no-code agents. These AIs are designed to manage the entire lifecycle of a software development project—planning, coding, testing, and deployment—without human intervention. Imagine an AI that can take a project description, break it down, write the code, debug it, and then launch it, all on its own....
Now, this would greatly impact the work of software developers. The idea...
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by: conductexam |
last post by:
I have .net C# application in which I am extracting data from word file and save it in database particularly. To store word all data as it is I am converting the whole word file firstly in HTML and then checking html paragraph one by one.
At the time of converting from word file to html my equations which are in the word document file was convert into image.
Globals.ThisAddIn.Application.ActiveDocument.Select();...
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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: muto222 |
last post by:
How can i add a mobile payment intergratation into php mysql website.
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