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by: Pete Davis |
last post by:
I have written a custom databound grid control that we've been using
successfully for months, but one of our developers has just run into a
problem that I can't figure out.
The code for setting it up is as follows:
DataSet dataSet = new DataSet( "TestSet" );
DataTable tableParent = dataSet.Tables.Add( "TableParent" );
tableParent.Columns.Add( "ID", typeof( Int32 ) );
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by: Kris Bethea via DotNetMonster.com |
last post by:
Greetings,
I have a VB.NET program that I am trying to convert to C# (my office
decided that we are going to use C# from now on).
I've only been working with C# for about a month now, so this has been
quite the learning experience for me.
The following code is from my VB.NET program and it selects the Call Number
from my datagrid and then uses that information to populate another form.
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by: web1110 |
last post by:
I created a class derived from a DataGridTextBoxColumn.
I have it working through looking at various examples on the net.
To update the underlying DataGrid, I had to overload the Edit method which
provided the CurrencyManager and row number required for SetColumnAtRow
method.
My question is, exactly is the CurrencyManager? I've used it, but I don't
understand it.
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by: Christopher Weaver |
last post by:
When I add a row to my DataTable my CurrencyManager doesn't know it's there.
I have a ComboBox and a CurrencyManager bound to a DataTable such that a
selection within the ComboBox causes all controls bound to that DataTable to
display the appropriate row. Fine. But when I do this:
dsTaskActivities.Tables.Rows.Add(NewTaskRow);
the CurrencyManager seems to ignore the new record. it shows up in the
ComboBox and I can...
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by: D |
last post by:
hi
I have a form with 2 datagrids showing related table data in a master /
child or order / order details type relationship. I would like to auto
select the row in the order details table which contains the highest priced
item. My thoughts were to get the currency manager from the orderdetails
table and iterate thru each row and keep track of the highest item and row
and select that when done. I have found that for some reason the...
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by: Jeremy |
last post by:
I have a dataset containing 2 tables. A is the master table, B is a lookup
table. There is a combobox bound to B, which updates a value in a FK field
in A.
my currencymanager is created thus:
cmB= CType(frm.BindingContext(DsClient1.Tables("B")), CurrencyManager)
The cbx has these settings:
cbx.valuemember=b.primarykey
cbx.displaymember=b.name
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by: Rich |
last post by:
Hello,
I have a datagrid (dgr1) on a form and I'm trying to bind a currencyManager
Object (cma) to it and print the current row position. But all I get for
cma.Position is 0, 0, 0 for any row in dgr1. dgr1 populates correctly and
when I first set cma - it shows the correct number of rows in the table
(tbl1). In my case there are 14 rows for real, and that is what cma shows.
But when I click a row on dgr1 - cma.position just displays...
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by: Brian Richardson |
last post by:
Hi,
Please can anyone kindly offer some suggestions as to why the
CurrencyManager might not refresh.
I am using the CurrencyManager to navigate through a DataView. I am aware
that there is an issue when adding a new record with using bound CheckBoxes
('http://support.microsoft.com/default.aspx?scid=kb;en-us;326440'). Due to
this problem, I have decided to drop the DataBindings from my controls, clear
the values, and attempt to...
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by: Rich |
last post by:
Hello,
Following an example at
http://www.vb-tips.com/dbpages.aspx?IA=DG (by Cor Lightert and Ken Tucker)
on binding a dataRelation to a Datagridview for sqlClient, I was able to
view rows in datagridview2 that corresponded to a selected row in
datagridview1. Great article/example.
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by: polocar |
last post by:
Hi,
I have noticed a strange behaviour of CurrencyManager objects in C# (I
use Visual Studio 2005 Professional Edition).
Suppose that you have a SQL Server database with 2 tables called
"Cities" and "Persons", and that:
"Cities" has 2 fields called "IDCity" and "NameCity"
"Persons" has 3 fields called "IDPerson", "NamePerson" and
"IDCityAddress"
with "IDCity" and "IDCityAddress" fields relationed with the
classical father-child relation...
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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: 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...
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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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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
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