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by: Henry |
last post by:
I was trying to derive a class from System.Windows.Forms.ComboBox. My goal was to create a class that loaded its own data. I did not want to create too many objects, so I tried to share a Database object from the calling class, but the compliler doesn't like it when I try to provide and overrided contructor. See the code below:
Do I have to stick with the standard ComboBox constructor?
If so, how else could I share a common reference to...
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by: norvinl |
last post by:
Hi,
I have a textbox on a form. When I assign a string to the .Text
property while in my form's constructor, the program just hangs
indefinitely.
Alternatively, if I assign the string to the form's .Text property, it
works fine.
this code hangs (never returns from 3rd line):
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by: Geoff Cox |
last post by:
Hello,
Can I separately declare and initialize a string array? How and where
would I do it in the code below? It was created using Visual C++ 2005
Express Beta 2 ...
In C# I would have
private string myArray;
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by: dx |
last post by:
I'm extremely frustrated with ASP.NET...again! To me this should be as
simple as setting oCheckBox.Checked = True.. yet for some reason it isn't.
I have a user control (ascx) that that has a checkbox and I can't get it to
default to checked. I tried radiobuttons and experienced the same result..
can't start them as checked. The really frustrating thing is that I set the
attributes of other input controls in the Init() with no problem.
...
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by: Just Me |
last post by:
Given a button name Btn_5 and Index=5
I want to do something like
dim zz as string = Btn_??Index??.Text
or given an array of buttons, do:
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by: NewToCPP |
last post by:
does the default constructor initialize values?
I have a class as defined below:
class A
{
int i;
char c;
int * iPtr;
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by: thinktwice |
last post by:
char a = { 0 }
is it ok?
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by: jht5945 |
last post by:
For example I wrote a function:
function Func()
{
// do something
}
we can call it like:
var obj = new Func(); // call it as a constructor
or
var result = Func(); // call it as a function
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by: 2005 |
last post by:
If a Constructor can be used to initialize, when is memory is allocated
/ say the "new" operator etc?
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: 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: 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: 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: 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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