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by: Derrick |
last post by:
Hi all, I've been trying to understand exactly how to insert a newly created
DataRow into a DataRowCollection at a specified row value without much luck.
At first I was just appending the collection with the Add method. That
worked fine, but not the InsertAt method. It always inserts the new row at
the end, just like Add did. Thanks for wathever help you can give.
Cheers,
Derrick
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by: Scott Adams |
last post by:
When calling the Find function of a DataRowCollection, one has two options:
Overloads Public Function Find(ByVal key As Object) As DataRow
or
Overloads Public Function Find(ByVal keys() As Object) As DataRow
This function is easy to use if the primary key of your DataTable consists
of only one field. How can you use the Find functions if the primary key
consists of two database fields (composite key)?
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by: Marc Pelletier |
last post by:
Hello,
I am trying to use the find method to locate a particular record in a
table. The code is :
objectfindTheseVals = new object;
findTheseVals = station_ID; // an integer
findTheseVals = dt; // a datetime
DataRow foundRow = dsStationDays.Tables.Rows.Find(
findTheseVals);
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by: Steve Richter |
last post by:
how do I sort the Rows DataRowCollection of a DataTable?
I have sub classed the DataRow class and added the IComparable
interface:
public class ResultsTableRow : System.Data.DataRow, IComparable
{
public ResultsTableRow( DataRowBuilder builder )
: base( builder )
{
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by: Matt Tapia |
last post by:
I have a datarow collection (drAccountInfo), and I want to add each row to a
datatable that is then added to a dataset...here is my code:
Dim iCount As Integer
Dim myDataTable As New DataTable
For iCount = 0 to drAccountInfo.Length-1
Trace.Warn(iCount)
myDataTable.ImportRow(drAccountInfo(iCount))
Next iCount
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by: Bill Nguyen |
last post by:
What do I need to do to add a row to a table with single column? I got the
"mnarrowing conversion" ewrror mesage.
Thanks
Bill
-----------------
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by: George |
last post by:
Hi,
I have encountered the following problem.
Say I have the following,
DataGridView dgv;
DataTable dt;
OleDbDataAdapter oleDb_da; (bound to a OleDb data connection)
|
by: Carlos |
last post by:
Hi all,
I have 2 asp .net 2.0 projects currently being developed. One is in
VB .Net and the other in C#. In the VB .Net project I can cross-reference
a datatable object using the datatable.rows.item(i).item(j) , but in the
C# project I can not do it. That is, I do get:
error 'System.Data.DataRowCollection' does not contain a definition for
'Item'
They are running under the same development evironment. (i.e. Asp .Net 2.0)
|
by: EmilH |
last post by:
Hi.
I have read some examples of IEnumerator at
http://www.codeproject.com/csharp/csenumerators.asp
What if I have 2 arrays or collections, for example a DataSet which has 2
DataTables in my class which derives from IEnumerator? How to implement
Current property to return current item of the desired DataTable?
Thanks.
Emil.
|
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...
|
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?
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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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