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by: ESPNSTI |
last post by:
Hi,
Please don't shoot me if the answer is simple, I'm new to .Net and C# :)
..
I'm attempting to convert a nullable type to it's "non-nullable" type in a
generic way (without knowing what specific type the nullable type is.)
The reason I'm trying this is because when I attempt to pass a nullable type
value to a SqlCommand parameter and then attempt to execute it I the
following error:
"No mapping exists from object type...
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by: Rubble |
last post by:
Hello,
Ive searched all over the net trying to find an answer to this...so
anybody with some expertise in this area would be greatly appreciated.
Background:
I have a webform that loads a datagrid. This datagrid has a button in
a column that loads another datagrid(user control) when clicked. This
new grid also has a column with a button that loads another user
control. So, there could be 3 user controls on this form if all the
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by: djscratchnsniffing |
last post by:
i know you can access an ascx's properties/methods from an aspx file.
Let's say you have an aspx file with two code-behind files(ascx files).
Can you access one of the ascx file's properties/methods from the other
ascx file?
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by: |
last post by:
I have made some user controls with custom properties. I can set those
properties on instances of my user controls, and I have programmed my user
control to do useful visual things in response to how those properties are
set.
I want to be able to do two other things:
a) add User control instances to my page, filling in the place of
placeholder controls, and
b) programmatically setting custom properties on those dynamically spawned...
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by: Rick |
last post by:
I have a business object (class) with some nullable properties declared like
this:
Private _MyProp as Nullable(of Int16)
public Property MyProp as Nullable(Of Int16)
get
Return _MyProp
end get
set(ByVal Value as Nullable(Of Int16))
If not _MyProp.Equals(value) then
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by: Andrus |
last post by:
My type contains constructor with nullable parameter like
public class Iandmed {
public Iandmed(DateTime? miskuup) {}
}
I tried to get its constructor parameter type name using
Type t = typeof(Iandmed);
ConstructorInfo c = t.GetConstructors();
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by: Aamir Mahmood |
last post by:
Hi
I am unable to access the HasValue and Value properties in an Nullable
object.
int? i = 9;
object value = i;
if ((value as Nullable).HasValue) {
...
}
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by: Tony Johansson |
last post by:
Hello!
Is it possible to declare existing .net generics to have nullable types(for
example type int? ) ?
If the answer on the previous question is yes then I assume that you can
also define my own generics class
having nullable types.
//Tony
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by: Tony Johansson |
last post by:
Hello!
Jon skeet answer this question in a previous mail for several days ago if
nullable type is a reference or a value type?
With the following answer.
It's a struct - otherwise there'd be relatively little value in having
it instead of having explicit access to the boxed types.
But what does the answer actually mean?
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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...
|
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: 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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