| |
by: Chris |
last post by:
I'm using a DataTable in my application. I am able to load rows into the DataTable quickly. What's puzzling me, however, is that when I update a set of cells in the DataTable, the update is really slow
my update code amounts to
dataTable.BeginLoadData()
dataSet.EnforceConstraints = false
tr
for(iRowHandle = 0; iRowHandle < iLimit; iRowHandle++
|
by: ZeroVisio |
last post by:
Hi,
I want to know if there is an easy way to do update a column of a row in
DataTable.
|
by: Mike |
last post by:
I have an ASP.NET/VB app that updates values in a DataTable over the
course of about 3 different pages. On the way out of the first of
these pages, I explicitly build the DataTable from values in a
DataGrid, and set the PrimaryKey of the DataTable to be the first cell
in the grid (which is a UserID value). I then store the DataTable in
a session object, from which it is retrieved for subsequent pages.
All this seems to be working fine.
...
|
by: jaYPee |
last post by:
I have search a lot of thread in google newsgroup and read a lot of
articles but still i don't know how to update the dataset that has 3
tables.
my 3 tables looks like the 3 tables from northwind database that has
an employees, orders, and order details.
the following are the 3 tables in my sql database
students
schyrsem
|
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...
|
| |
by: cindy |
last post by:
this is the call
private void Page_Load(object sender, System.EventArgs e)
{
OdbcConnection connection = new OdbcConnection ("DSN=PFW52");
CreateDataAdapter(connection);
}
this is the code, no errors, but NO UPDATE I have to use ODBC I just
need to update a field based on a key, EMBARASSED to say days going
|
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;
|
by: Matteo Migliore |
last post by:
Hi.
I writed a method that takes two DataTable with same schema
and return a third DataTable that:
- insert new rows from "compare" DataTable
- delete rows contained in "source" and not in "compare" DataTable
- update rows from "compare"
--------------------------------------
public static DataTable GetMergedTable(DataTable source, DataTable compare)
|
by: jas16183 |
last post by:
Hi Guys,
need some help here,
Im working on a project in vb.net, the problem im facing is that my tableadapter.update(dataset.datatable) is not functioning,
the datatable has a relation with another table, the relationship is on to many.
in the dataset designer I configured it to Relation only,
the database is in mdf format, I can update my records in the access file, and can do it also in the server explorer, but not when from my form,...
|
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,...
|
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...
|
| |
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,...
|
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...
|
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...
|
by: adsilva |
last post by:
A Windows Forms form does not have the event Unload, like VB6. What one acts like?
|
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
|
by: muto222 |
last post by:
How can i add a mobile payment intergratation into php mysql website.
|
| |
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...
|
