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by: Wayne Wengert |
last post by:
I am trying to populate a combobox with a lisy of items. I want the 1st item
to be "Make a Selection" and the following items will be names from a table
in my DB (See code below).
When I run the project, the combox box initially displays an empty
selection. When I click on the drop down arrow I see the "Make a Selection"
followed by the other choices.
How can I move everything up so that the "Make a Selection" is the default
value in...
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by: Rachel Suddeth |
last post by:
When I put a ComboBox on a form, I can enter strings through the designer to
fill Items collections. I have put a ComboBox in a UserControl, and exposed
the the Items collections with the same type...
public class ControlWithComboBox : MyControls.BaseControl, IDataEntryControl
{
...
protected System.Windows.Forms.ComboBox comboBox;
...
public ComboBox.ObjectCollection Items
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by: Firewalker |
last post by:
I am attempting to change the backColor property on the previously
instantiated buttons FROM a listbox_doubleClick event.
I thought it would be something like this:
If Me.Controls.Item(iSeatNumber).BackColor.Equals(Color.White) Then
Me.Controls.Item(iSeatNumber).BackColor.Equals(Color.CornflowerBlue)
'End If
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by: James P. |
last post by:
Hello,
For my new Windows application, all I want is to create an initial
form to demo to the user to show them how it looks like with some data
on it. So I figure the fastest way is to create some comboBox-es to
show some data on them manually entered in the code without connecting
to the database yet. It should be simple but somehow I can't make it
work.
First, I drag a comboBox from the ToolBox to the form. Then,
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by: Sakharam Phapale |
last post by:
Hi All,
How to fill one ComboBox from other ComboBox control?
1) Only setting the reference does the trick but doesn't show items in
control. If you see in immediate window, it shows the item count correctly
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by: Lars E. Nes |
last post by:
Hi all.
I am setting some color on my combo's:
this.combobox1.BackColor = Colors.White;
This only works when the combobox is enabled.
How can i add color to a disabled combobox?
Lars
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by: samoore33 |
last post by:
I am trying to dynamically add items to a listbox or combobox. The
items add to either, but when I look through those items, there is
nothing there. If I choose an item, it shows up.
Not sure why, but the items are not visible in the listbox or combobox
until one of the items has been chosen. This of course is not good,
since someone can not see the items they need to choose from.
Any help would be appreciated.
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by: polocar |
last post by:
Hello,
I'm developing a C# program using Visual Studio 2005 Professional
Edition.
In the main form I have inserted a ListView control that is populated
in a different way depending on the item selected in a ComboBox.
I have written a procedure that reads the ComboBox selected item and
populates the ListView according to that. The procedure uses a
"for" cycle: in every iteration it creates a ListViewItem, set its
SubItems and BackColor...
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by: =?Utf-8?B?bWljaGFlbCBzb3JlbnM=?= |
last post by:
I want to create a customized ComboBox where the methods ComboBox.Items.Add
and ComboBox.Items.Insert will behave thusly:
-- If the item is not present, add it.
-- If the item is present, set the selected index to the item (without
adding a duplicate).
I know the basics of inheriting from user controls, so if this was merely
overriding a method of ComboBox I could do it. But how does one go about
overriding a method of the Items...
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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: 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: 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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