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by: cwbp17 |
last post by:
Have two tables that have a FK relationship on ID column.
Have one datagrid that displays all of the columns of both tables.
What's the best approach on updating a row from the datagrid back to the
database?
I've used the following code for the DataGird1_UpdateCommand
Option1
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by: TT (Tom Tempelaere) |
last post by:
Hay there,
I'm writing my own DataGridComboBoxColumn because .NET 1.1 does not have one
(I hope .NET 2.0 supplies one). I based it on this article:
http://msdn.microsoft.com/msdnmag/issues/03/08/DataGrids/default.aspx
I have a problem when there are two DataGrid's on one form, and when I
switch focus from one grid to the other. To be more precise, when I'm editing
a combo box column in one grid, and then click in the combo column of...
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by: junglist |
last post by:
Hi guys,
I've been trying to implement an editable datagrid and i have been
succesful up to the point where i can update my datagrid row by row.
However what used to happen was that once i updated one row, all of
them were updated so i immediatelly figured out that i have to include
the id of every entry in the update statement. This is where the
problem is raised. My database is an Access database. The table i am
updating contains a Date...
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by: cwbp17 |
last post by:
I'm having trouble updating individual datagrid cells.
Have two tables car_master (columns include Car_ID, YEAR,VEHICLE) and
car_detail (columns include Car_ID,PRICE,MILEAGE,and BODY);both tables have a
FK relationship on CAR_ID
so the oracledataadapter1 select statement(CommandText) is:
select car_master.car_id,
car_master.year,car_master.vehicle,car_detail.car_id AS EXPR1,
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by: Didymus |
last post by:
Hi everyone,
My program reads data from a DataBase, then populates some ComboBoxes with
data from each Table respectively, filtering the data in each ComboBox
according to the item selected in the preceding ComboBox.
(...Thanks guys for the guidance in that area...)
The resulting filtered table displays the filtered result in a DataGrid.
I want to be able to edit any errors found in the text displayed. (This part
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by: jaYPee |
last post by:
does anyone experienced slowness when updating a dataset using
AcceptChanges?
when calling this code it takes many seconds to update the database
SqlDataAdapter1.Update(DsStudentCourse1)
DsStudentCourse1.AcceptChanges()
i'm also wondering because w/ out AcceptChanges the data is still save
into the database and it is now faster.
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by: Greg |
last post by:
I'm using the Framework 1.1, so I don't have access to the new
DataGridView object.
What I'm wondering is, is there a really simple way to bind a plain
datagrid to a database in such a way that changes made to cells in the
datagrid call an update on the corresoonding data within a database?
I've looked in vain for a really simple way to do this with minimal
coding, but I'm coming to the conclusion that I will have to trap the
events of...
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by: marcmc |
last post by:
Hey, I have never used a datagrid/dataset/adaptor/table method for updating
data, I have always used direct updates to the database so ADO is quite new
to me.
I have a datagrid and I change a value in one of the fields.
I hit save and the following code runs...
Dim da As SqlClient.SqlDataAdapter = New SqlClient.SqlDataAdapter("Select *
from MISRE_Threshold", cn)
da.Update(dsThreshold, "MISRE_Threshold")
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by: =?Utf-8?B?VmFuZXNzYQ==?= |
last post by:
Hi All!
I am with a situation where I am not getting the right updating to the
form's fields. The situation is the following one:
I have one combobox and one textbox. I am using the CurrentChanged event of
the BindingSource of the combobox to update the textbox. When selecting an
item in the combobox or when selecting a row in the grid, it is updating the
textbox correctly. The problem is when I apply a filter in the grid, and then...
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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: 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: 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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