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by: Tim Clacy |
last post by:
Please illuminate; what operator of class 'Event' will get matched for these
two cases :
Event ev1;
Event ev2;
// Case 1
//
if (ev1)
;
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by: DraguVaso |
last post by:
Hi,
In my application, on some given actions while debugging in Visual Studio, I
suddenly get a "System.ComponentModel.Win32Exception was unhandled"
Message="Error creating window handle." exception.
The problem is that this exception isn't raised somewhere in a method, so it
just shows up, and it causes the application to shut down.
Is there anyway how to catch this kinds of exceptions? Can I put somewhere a
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by: Adam J. Schaff |
last post by:
I have noticed that if a user closes a form via pressing return (either
while the OK button has focus or if AcceptButton is set to OK for the form)
then the "ENTER" keypress event fires ON THE CALLING FORM! This is very bad
for me, because in my application, Form1 responds to an ENTER keypress by
calling Form2. If the user closes Form2 via an ENTER, then Form1 just
reopens it again, kind of trapping the user in Form2 (they can still close...
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by: Shawnk |
last post by:
I would like to perform various boolean operations on bitmapped
(FlagsAttribute)
enum types for a state machine design as in;
-------------------
enum portState {
Unknown,
Open,
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by: Prashant M |
last post by:
iam generating am exe from o/p of the c# application. I mean generating
seperate exe dynamically from an exe of one application.
suppose o/p of an exe generated for application1 is a form1. then when i
click a button on form1 which was generated by tht original exe i should get
another exe generated.
Now iam able to that using compiler parameters. But when i tried the same
concept on my project iam getting an error saying that :
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by: Prashant M |
last post by:
iam generating am exe from o/p of the c# application. I mean generating
seperate exe dynamically from an exe of one application.
suppose o/p of an exe generated for application1 is a form1. then when i
click a button on form1 which was generated by tht original exe i should get
another exe generated.
Now iam able to that using compiler parameters. But when i tried the same
concept on my project iam getting an error saying that :
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by: Miro |
last post by:
I wanted certain text boxes ( only certain ones ) to always be Trim'd so
that spaces are not in the begining,
nor the end of the text entered.
I created my own "Handle ?" - i hope thats the right terminology,
and it works. Is this the right way to do this?
I had to use DirectCast to get the textbox name.
Private Sub TrimValues(ByVal sender As System.Object, ByVal e As
EventArgs) _
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by: sranger |
last post by:
When I try to use a System.IO.Ports.SerialPort object to read from a serial port, half of the time I have no problems. However, after I successfully read from the serial port, then close the connection, either when re-opening it (in the same instance or a new instance of my program) I get either an IOException "The Handle is Invalid" exception or an ArgumentException "The portName is invalid.
Now, I get the port name by doing this:
String...
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by: =?Utf-8?B?aGVyYmVydA==?= |
last post by:
I read from a serialport using a worker thread. Because the worker thread t
does not loop often, I cannot wait to terminate the worker thread using a
boolean in the While condition.
So I have a StopReader() method that simply aborts the worker thread (is
there a better way for the above situation?).
The StopReader creates an ObjectDisposedException when calling t.Abort(). WHY?
Public Sub StopReader()
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by: =?Utf-8?B?TWFyaw==?= |
last post by:
Users of an in-house application we have written randomly get an Error
creating window handle exception, and we've not been able to determine why
this happens. A typical callstack is as follows:
: System.ComponentModel.Win32Exception: Error creating window handle.
at System.Windows.Forms.Control.SetVisibleCore(Boolean value)
at System.Windows.Forms.Control.set_Visible(Boolean value)
at System.Windows.Forms.TabPage.set_Visible(Boolean...
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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: 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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by: muto222 |
last post by:
How can i add a mobile payment intergratation into php mysql website.
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