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by: jack daniels via .NET 247 |
last post by:
Hi! Perhaps you know of a better way here.
I have an Access database, actually a single table. Now, at the click of a button on a C# Form, each and every single cell associated with the primary keys has to be updated. I have the new cell values in an arraylist and this is what I am doing:
for (int i = 0; i < numberOfPrimaryKeys; i++)
{
adapter.UpdateCommand = new OleDbCommand(strSQL, conn);
adapter.UpdateCommand.ExecuteNonQuery();
}
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by: Bassem |
last post by:
Hi all...
I searhed for a code to save and retrieve image from SQL database
using Data adapter but I didn't found anything.
Thanks,
Bassem.
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by: Marina |
last post by:
The commands that are generated by the SqlCommandBuilder are not quite
right. I am calling GetUpdateCommand and GetDeleteCommand, modifying the
results, and assigning them to the UpdateCommand and DeleteCommand
properties of the SqlDataAdapter.
However, when the update runs, it looks like the original commands that
SqlCommandBuilder creates are being used,instead of the commands assigned to
the UpdateCommand and DeleteCommand properties....
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by: Rich |
last post by:
Hello,
I have an oleDBDataAdapter (da1) which gets data from an
Access mdb and fills a dataset (ds1) with integer data
from "tbl1" in Access. Data displays in textboxes on a
form. The textboxes are bound to columns in the dataset.
This works correctly. I have been struggling with
invoking da1.Update(ds1, "tbl1") and with help from the
group here have overcome this obstacle (many thanks for
the help). But I need to be able to Insert...
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by: rEdMiddLe |
last post by:
I use insertCommand insert a record into Employees and use updateCommand
update the record at now.but happend exception
because the employid's column of employess is identity.so can you help me?
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by: cj |
last post by:
I have lots of tables to copy from one server to another. The new
tables have been created to match the old ones. I practiced with one
table. I created the select command (select * from tableA) and Visual
Basic .NET created an update command--very long as there are a lot of
fields.
Now there are more large tables to copy. Is there an easy way to have
Visual Basic create these update commands itself for the other tables
with out...
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by: cj |
last post by:
I'm having a problem writing an insert command to work with a datatable.
I've looked at what the sqldataadapter creates and created my insert
command to look the same. I have:
MySqlAdapter.InsertCommand = New SqlCommand("INSERT INTO billing( type,
dsc ) VALUES ( @type, @dsc)", MySqlConnection)
But it gives me the following error when MySqlAdapter.Update(MyDt)
executes: Must declare the variable '@type'
Could someone tell me what I'm...
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by: John Cosmas |
last post by:
I have a DATATABLE which I have populated in my application, and I need it
written out to a particular table I specify in my ACCESS database. My code
works to the point of the MERGE and UPDATE, but it creates exactly the
number of BLANK records per the populated DATATABLE. Here is my code...
pstrDestinationTable = "tws_tbl_Case_Scanner_" &
GetDateTimeStamp()
pstrSQL = "SELECT * INTO " & pstrDestinationTable & " FROM...
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by: Rich |
last post by:
What is the diffeence bewtween a dataAdapter.InsertCommand and
dataAdapter.SelectCommand (and dataAdapter.UpdateCommand for that matter)?
Dim da As SqlDataAdapter
conn.Open
da.SelectCommand = New SqlCommand
da.SelectCommand.Connectoin = conn
da.SelectCommand.CommandType = Command.Text
da.SelectCommand.CommandText = "insert Into tbl1 Select * from tbl2"
da.SelectCommand.ExecuteNonQuery
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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: 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: 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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