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by: Ann Morris |
last post by:
INTRODUCTION
One of the most powerful aspects of .NET and Windows Forms is data
binding. Data binding is the process of associating user interface
(UI) elements with a data source to generate a visual representation
of data. Two types of data binding are available for Windows Forms:
Simple Data Binding and Complex Data Binding.
Simple data binding allows you to bind one data element to a control.
In many situations you want to display...
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by: Zlatko Matiæ |
last post by:
I was reading about late binding, but I'm not completely sure what is to be
done in order to adjust code to late binding...
For example, I'm not sure if this is correct:
early binding:
Dim ws As DAO.Workspace
Dim db As DAO.Database
Dim qdf As DAO.QueryDef
Dim rs As DAO.Recordset
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by: Ian |
last post by:
I have sub-classed the Page class in order to provide some base
properties and methods that every page on my site will need access to.
I would like to have these things show up in the Simple Binding
window of the DataBindings dialog. I then found this site
(http://msdn.microsoft.com/library/default.asp?url=/library/en-us/vsintro7/html/vxurfDataBindingsDialogBox.asp)
which says:
The tree view displays these objects: the Page object; any...
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by: Bruce |
last post by:
Hi, there,
I meet a problem about comboBox binding.
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Database: Northwind
Tables: 1) Products 2) Categories
I create a form (named "form1") to edit the record from Products table.
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by: JSantora |
last post by:
Essentially, InsertAT is broken!
For the past couple of hours, I've been getting this "Parameter name:
'-2147483550' is not a valid value for 'index'." error.
Apparently, its caused by having manually inserted a row in the table
bound to the Combo box. The InsertAt Method of adding a row just does
not work.
Hope this helps anyone with this problem.
john
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by: js |
last post by:
I am using executeReader to get a SqlDataReader as in my code below.
The SqlDataReader contains two tables. I am trying to bind each table
to its respective dropdown list control. Thanks.
//************* My code *************
System.Data.SqlClient.SqlDataReader dr = null;
string strSQL =
"SELECT id, iorg_name FROM int_org order by iorg_name;" +
"select id, l_name from loc order by l_name";
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by: xtseeker |
last post by:
We have a multi-threaded .NET application, the problem is that the
previous programmer didn't care to have locks on the shared variables.
Somehow the application doesn't end up in Locked state on a single CPU
machine but I have tried running it on several dual core machines and
it randomly freezes. I am searching for a quick-fix until I implement
locks around all the shared variables in the entire application.
Is there a way to bound the...
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by: sekshin8 |
last post by:
I am trying to bind fields from the first three records of a query (three records will always be returned by the query) to three textboxes on a windows form.
ex.
Textbox1.text = row1 column1
Textbox2.text = row2 column1
Textbox3.text = row3 column1
another three textboxes would contain the values from the second column
Textbox4.text = row1 column2
Textbox5.text = row2 column2
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by: Larry R |
last post by:
Asp.net 2.0. Binding a Gridview. UNtil now, it had been simple
BoundColumns, but now I need to have one column show the values of 3
columns ( they are in the same datasource).
I thought that I should just be able to use a template sucha as :
<asp:TemplateField d>
<HeaderTemplate><asp:Label runat=server>Test</
asp:Label></HeaderTemplate>
<ItemTemplate>
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by: Tom Gur |
last post by:
Hi,
What is early/late binding ?
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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: 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: 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: 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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