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kandi X-RAY | CodeSnippet Summary
kandi X-RAY | CodeSnippet Summary
Funny and interesting codes developed in my spare time
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QUESTION
we've found an exception in our logs and its unclear to us how this code could be valid, can someone please explain why this codesnippet results in an Run-time exception instead of being a Compile-time error?
...ANSWER
Answered 2022-Mar-25 at 14:43You have to declare which enumType result is. you cannot use result as type int as an out variable on Enum.TryParse
QUESTION
public class AnswerModel: IDisposable
{
private bool disposedValue;
public string Answer { get; set; }
public string CodeSnippet { get; set; }
public string AnswerBy { get; set; }
public DateTime DatePosted { get; set; }
public string TimeStatus { get; set; }
protected virtual void Dispose(bool disposing)
{
if (!disposedValue)
{
if (disposing)
{
// TODO: dispose managed state (managed objects)
}
// TODO: free unmanaged resources (unmanaged objects) and override finalizer
// TODO: set large fields to null
disposedValue = true;
}
}
// // TODO: override finalizer only if 'Dispose(bool disposing)' has code to free unmanaged resources
~AnswerModel()
{
// Do not change this code. Put cleanup code in 'Dispose(bool disposing)' method
Dispose(disposing: false);
}
public void Dispose()
{
// Do not change this code. Put cleanup code in 'Dispose(bool disposing)' method
Dispose(disposing: true);
GC.SuppressFinalize(this);
}
}
using (AnswerModel a = new AnswerModel())
{
a.Answer = answer.Answered;
a.AnswerBy = answer.AnswerBy;
a.DatePosted = answer.DatePosted;
a.CodeSnippet = answer.CodeSnippet;
answerModel.Add(a);
}
...ANSWER
Answered 2022-Mar-03 at 08:46C# is a memory managed language. Objects created on the heap will get garbage collected automatically when there is no reference to the object and a GC cycle occurs (GC = garbage collector).
However there are some object that use resources outside the managed memory, For example File Streams, Web Connections or Database connection. They implement an interface called IDisposable
with a function called Dispose()
, that you can call when you finish using the resource.
In addition ~Object()
Finalizers
are not good practice, because you don't know exactly when the GC frees the object, and it can create a load that you cannot control.
In conclusion you should implement IDisposable
when your object uses outside resources that need to be Disposed
, so you can free the resource when you don't need them anymore.
QUESTION
I have a repository which contains some methods. However I have a method that I am trying to assign to a variable. But it doesn't work because the method is a void. Is there anyway I can work around this problem?
Codesnippet from my controller:
...ANSWER
Answered 2022-Jan-07 at 15:11You seem to be very confused by the basics of the language you're using, which is fine we all start somewhere with programming, however I suggest you go back and read up on the basics of method calls, and returning values from methods.
For the sake of moving you along with this task you should make your method have a return type of Inventory
and return it
QUESTION
I have a code snippet I made and I want to use it during writing code, the problem is that the Inteli-sense not suggest the snippet I made even though I can see it was added as expected in the snippet manager window.
the snippet:
...ANSWER
Answered 2022-Jan-04 at 09:58I tested your code and there is no problem. Did you do something wrong? Did you try to restart the compiler?
1. 2. Tools->Code Snippets ManagerClick import:
3. Output: My version:Best Regards,
Jiale
QUESTION
Well, at the beginning of the Implementation of ItemTouchHelper
, I chose to use only the Swipe function from it. Everything worked - with the help of Swipe I could delete items in RecyclerView
etc. But then I thought I'd add up-down movement so that the user could change the order in which the item appears in the list.
Then the problems began - the user can change the order in which items are displayed, but can no longer:
- Scroll
RecyclerView
(even if changing item up-down position is disabled) - Swipe functions have stopped working -
onSwiped
does not return the side (ItemTouchHelper.LEFT, ItemTouchHelper.RIGHT
) in which the item was swiped
I changed the View on which is trigger OnStartDragListener from _view to just ImageView and I can scroll now but there are now other problems:
- Swipe works on that ImageView too - I want to be able to swipe item whereever user click on item (_view)
- Swipe functions still doesn't work -
onSwiped
does not return the side (ItemTouchHelper.LEFT, ItemTouchHelper.RIGHT
) in which the item was swiped
FIXED
I Changed
...ANSWER
Answered 2021-Dec-25 at 15:17FIXED
I Changed
QUESTION
This would seem useful for many WordPress sites, but I cannot find a full code.
We have a working codesnippet to notify Contributors when their post is published. But as we have User Submitted posts at the front end too, I want a different message to notify Subscribers when their post is published.
Most code I can find is based on the current user, but that responds to who is publishing the post, not who wrote it.
So this is our attempt - with 3 messages. But so far it always sends the final message. Can someone spot the error(s)?
Major thank you.
...ANSWER
Answered 2021-Nov-22 at 11:54It looks like your comparison function isn't right.
Based on your additional comments, this would send the specified email to the users with specific roles.
QUESTION
I have a list of dictionaries with the following shape:
...ANSWER
Answered 2021-Nov-05 at 13:04You can flatten it like:
QUESTION
I've worked my problem into a codesnippet - I'm actually using React so it actually behaves like a list of TabHeadings
- and when one is clicked, it expands the List
to the right of it (so only one ever is visible at a time).
I have a height on my heading-tab
that I don't want it to exceed, but because the height of list
is larger - it makes it expand to the same height, how can I prevent this?
ANSWER
Answered 2021-Oct-29 at 10:46Is this the result you're trying to achieve?
https://jsfiddle.net/Ljopa0hy/17/
Basically, set the height on the container and use flexbox instead of grid.
QUESTION
I have the following class hierarchy with a virtual GrandParent
and non-virtual Parent
and Child
:
ANSWER
Answered 2021-Oct-18 at 10:57From the faq:
What special considerations do I need to know about when I inherit from a class that uses virtual inheritance?
Initialization list of most-derived-class’s ctor directly invokes the virtual base class’s ctor.
Because a virtual base class subobject occurs only once in an instance, there are special rules to make sure the virtual base class’s constructor and destructor get called exactly once per instance. The C++ rules say that virtual base classes are constructed before all non-virtual base classes. The thing you as a programmer need to know is this: constructors for virtual base classes anywhere in your class’s inheritance hierarchy are called by the “most derived” class’s constructor.
The constructor of Child
calls the constructor of GrandParent
directly, because GrandParent
is a virtual base. And because you did not call it explicitly, the default constuctor is called, but GrandParent
has no default constructor.
Modifying the Child constructor to directly call the GrandParent constructor (thus skipping a generation), I can bypass the error but it seems like the wrong approach.
This is exactly the right approach. Child
s constructor does call GrandParent
s constructor, you cannot do anything about that when GrandParent
is a virtual base and Child
is the most-derived-class. What you can do is: Choose the right constructor instead of letting the compiler try to call the non-existent default constructor.
QUESTION
Genexus Evo3
I'm trying to create a User Control using Atom; it has to create a table of X rows and Y columns based on user input, i created the UC and put it on a mock Web Panel on a fresh KB just for this, but when i open the web panel the Chrome console returns:
Uncaught ReferenceError: [UserControlName] is not defined
These are my codes:
...ANSWER
Answered 2021-Sep-16 at 20:54You should do a "/install" after moving the UC to the corresponding directory of the gx installation.
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