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by: Carl Tribble |
last post by:
I am using KeyPreview on the form to trap Function-keys. My form includes a
datagrid. I am using the Form.KeyDown event to trap the keys and all works
fine unless the datagrid is showing one or more rows and the focus is in a
column on one of the datagrid's rows. Then, pressing a function key does
not seem to execute the Form.KeyDown event.
How can I trap and detect which function key a user pressed at the form
level from inside of a...
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by: Ori |
last post by:
Hi Guys,
Here is my problem, but maybe someone can help me with this.
Background:
1. Using C#.
2. I'm having a form which the KeyPreview is on (and must stay like
this) and I'm implementing some functions on the Key up event of some
controls and the form.
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by: ray well |
last post by:
hi,
i need to preview the keys in my app in order to process F1-F10. i set
keypreview of my form to true, and it does capture the keystrokes from all
over the forms controls which i then
process.
i found 2 puzzeling exception: if the user is inside the text box of a
ComboBox, the keystrokes aren't
captured in the form's keypress event. i have to separately capture the
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by: Rene |
last post by:
Hi,
I am running is some problems with the KeyPreview and KeyPress events.
The KeyPress event is only triggered when there this an focusable control on
the form. When all controls are disabled the Form.KeyPress event does not
trigger anymore.
A way to 'solve' this is to set the focus to the form, but during testing it
happens ofter the keypress event is not getting triggered on keys like
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by: HABJAN ®iga |
last post by:
I'am using form's keypreview property & keydown (on form) to look for
hotkeys (alt+?)
Everything works fine, except when i have focus on combobox.
Then the event on form isn't raised.
Can some one tell me why & how can it be done?
best regards,
habix
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by: Himselff |
last post by:
Hi guys,
Im new to dot net and wondering how i could remake the same way i was in
vb6, capture all keypress whitin a form,
per exemple i was on the form looking for some keypress
privete sub form_keypressed(keyascii as integer)
if keyascii = 13 then 'for the enter key
call button_click
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by: Nikolay Evseev |
last post by:
Hi,
I am trying to trace down the Enter key in my Form.KeyPress event handler.
The KeyPreview property is set to false, so I'd assume that all key presses
should go through my form's KeyPress event handler, right? Ok. If the focus
is set to any other control than a button, then the above event handler
fires, but if the focus is on a button, then I've no way to know that the
Enter key has been pressed or not, because in that case pressing...
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by: Rob |
last post by:
When a custom control is used within a form, that control does not get
events directly. I've run into this a couple times with both mouse
and keyboard events.
Ex: A custom control inherits from UserControl (or Panel, etc). If
that particular control is being edited, it IS possible to assign
handlers and get events.
However, when the control is used on the main form, assigning a
handler to the particular control does nothing--the...
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by: polocar |
last post by:
Hi,
I would like to find a way in C# so that, when the user presses the
"Esc" key, the form closes; the problem is that I have a lot of
controls in the form.
At the beginning I have tried with the following form event handler:
protected override void OnKeyPress(KeyPressEventArgs e)
{
base.OnKeyPress(e);
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by: Ben |
last post by:
Hi
I would like to complete a task whenever F4 is pressed by the user anywhere
on a form.
The problem is the Key Down event does not fire for the form if the user is,
for example within a text box. Is there any method of doing this other than
adding the code to the key down event for all controls?
Thanks
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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: 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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