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by: alan |
last post by:
Hi
Does primarykey property on the datatable object always need to be set in your code (for use with datarow.find) or should this be set automatically from your database tables primary key coz this dosnt seem to happening for me??
Ta
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by: elcc1958 |
last post by:
I need to support a VB6 application that will be receiving
disconnected ADODB.Recordset from out DotNet solution. Our dotnet
solution deals with System.Data.DataTable. I need to populate a
disconnected ADODB.Recordset from System.Data.DataTable data. Below
is the source code I am implementing to test the process. I do not
get any error, that I can see. The problem I have is that at the end,
the recordset seems to be empty. Any...
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by: Junjie Wang |
last post by:
I define a DataTable object in the aspx:
Dim m_theDataTable As New DataTable()
which is a member variable of the page class.
I use the following code to bind it to the grid:
Dim theDataView As DataView
theDataView = New DataView(m_theDataTable)
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by: Chun |
last post by:
Dear All
I am now facing a problem when i try to pass a custom datatable datatype
value to a remote server. In the remote server, a method with
System.Data.DataTable as input parameter is implemented.
An error "Cannot be converted into parameter type System.Data.DataTable".
Please help to provide me a solution for my problem.
Thank you for your kind support.
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by: Luis Esteban Valencia |
last post by:
Compilation Error
Description: An error occurred during the compilation of a resource required
to service this request. Please review the following specific error details
and modify your source code appropriately.
Compiler Error Message: CS0117: 'System.Data.DataTable' does not contain a
definition for 'WriteXml'
Source Error:
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by: Jim Murphy |
last post by:
In creating a C# web service, I am having trouble returning a DataTable
object as the result of a web method. I have no problem returning native
types like string or int, but cannot return a .NET DataTable object. The
problem occurs when I try to compile the client side C# application (it
complains about the DataTable type not being recognized as the return of the
web service method).
Thanks
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by: John Smith |
last post by:
This works:
Dim dt As System.Data.DataTable
Dim r As System.Data.DataRow = dt.Rows.Item(i)
i = r.Item(2)
but I would like to get column value as string and it doesn't work because
column name is ows_Rok_x0020_izvedbe (when read from XML) and I don't know
it's name in DataTable.
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by: John Smith |
last post by:
This works:
Dim dt As System.Data.DataTable
Dim r As System.Data.DataRow = dt.Rows.Item(i)
i = r.Item(2)
But, I would like to retirive column value by entering
column name not by index ( r.Item(2)
). The problem is that I don't know column name and I would like somehow to
list all column names of DataTable. How can I do that?
|
by: yarivot26 |
last post by:
Hi,
I have a form where the user can select a product and the product info will appear next to it.
The products and the data on them all come from a db so I needed it to be dynamically.
After a quick search in Google I found half answer - I managed to display the product data but if the user selected another product the previous product data stayed and more data appeared.
I need to know how I hide data when another product is...
|
by: Debadatta Mishra |
last post by:
Introduction
In this article I will provide you an approach to manipulate an image file. This article gives you an insight into some tricks in java so that you can conceal sensitive information inside an image, hide your complete image as text ,search for a particular image inside a directory, minimize the size of the image. However this is not a new concept, there is a concept called Steganography which enables to conceal your secret...
|
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,...
|
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...
|
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...
|
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: 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?
|
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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