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by: Zlatko Matić |
last post by:
There is a form (single form) and a combobox. I want that current record of
the form is adjusted according to selected value in the combobox. Cuurrent
record should be the same as the value in the combobox.
What is the solution?
Thank you in advance.
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by: NCrum |
last post by:
I want to set the Default value of a Combobox for any changeable record and have got this working but it is totaly unsatisfactory
see the code below
I loop through the items in the Combo looking for a match between cVal and the selectedValue then stop when I do have a match
the obvious problem is that each iteration fires the selectedIndexChanged but also for a large list this will slow everything down.
There must be a better way
int...
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by: Norm Katz |
last post by:
When you use a bound combobox and you set its dropdown style to "dropdown"
that allows you to enter text in the edit box. But if you enter anything
other than a value in the current bound items collection, the .text property
does not update. Furthermore, you can't easily trap an event to examine the
new value if your program assigns it programmatically as opposed to someone
typing it in and tabbing away from it. That is, TextChanged does...
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by: Don |
last post by:
I've looked high and low for some code that will allow me to have a combobox
with a flat borderstyle. I found a few examples, but nothing that was
really usable for me. I had the following criteria that I wanted to meet,
but nothing did:
- No reliance on a separate library
- No unmanaged code
- Easy subclassing of System.Windows.Forms.Combobox (i.e. no custom control
monstrosity)
- No extra funky features that I didn't need
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by: dbuchanan |
last post by:
ComboBox databindng Problem
== How the ComboBox is setup and used:
My comboBox is populated by a lookup table. The ValueMember is the
lookup table's Id and the DisplayMember is the text from a
corresponding field in the lookup table. In my data table we store the
ID in what I will call the 'key' field.
== Description of the desired operation:
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by: Eric A. Johnson |
last post by:
Hi Everyone,
I am at my wit's end here. I have a combobox (combyQueryTitle) that I
need to use in order to select a query for my database project. Therefore,
I am using the comboQueryTitle_SelectedIndexChanged handler to, when a new
selection is made, update the query and refresh the display. The only
problem is that the program seems to inexplicably start with the
..selectedindex property at -1! This makes no sense to me. ...
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by: Frnak McKenney |
last post by:
Can I use a bound ComboBox for both browsing and editing?
I'm working on a small, standalone database application using Visual
C#.NET 2003 and an Access data file.
In order to keep the number of different screens down to a minimum,
I'm trying to use the same Windows Forms for both browsing and for
updating. This works fine for TextBoxes, but I'm running into
problems with my DropDownLists (ComboBoxes).
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by: active |
last post by:
I tried to use a datasource with a combobox and it didn't work completely so
I build a small test that was much more straight forward then the app.
The test was to see if the combobox dropdown list displayed the correct
data.
However, although the designer shows the combobox the combobox does not
show at runtime.
If you would be so kind as to cut the code below and paste it into a form
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by: Jerad Rose |
last post by:
I'm baffled by this -- is there not a typed object used for ComboBox Items?
Best I can tell, all of the methods for ComboBox that accept an Item are of
type Object. Why in the world is a common/standard .NET control accepting
an Object as a parameter type?
In Web Forms, there is a ListItem object that can be passed in to
add/retrieve objects from a DropDownItems collection. I searched Google
groups, and all the solutions I'm finding...
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by: Frinavale |
last post by:
This question is going to sound a little crazy but.........How do you set the selected item in a ComboBox?
I am populating a ComboBox with a bunch of instances of a custom private class:
For Each s as Something In MyListOfSomethings
MyComboBox.Items.Add(New XYZListItem(s.ID,s.description))
Next
MyComboBox.ValueMember = "ID"
MyComboBox.DisplayMember = "Description"
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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: 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: 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: 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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by: muto222 |
last post by:
How can i add a mobile payment intergratation into php mysql website.
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