by: Tony Johansson |
last post by:
Hello!!
Can somebody explain what does argument contravariance mean.
I know what covariance mean because this is involved in some way when we
have argument contravariance .
Use some easy code...
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by: Ondrej Sevecek |
last post by:
Hello,
what is the difference between "event" and the only use of delegate? Why
one should note events with "event" keyword when the functionality seems the
same as with pure delegates?
When I...
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by: Daniel |
last post by:
How do I call a delegate in late bound C# dll? there some way to do this w/
a sharedinterface file? any examples? i tried this but it doesnt work:
(oType.GetMethod("IOCTLJOB").Invoke(pObj, new...
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by: Wavemaker |
last post by:
One of the things I've struggled with from time to time is handling
events raised on different threads. For example, an object could be
listening to events from one or more objects running in...
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by: Ant |
last post by:
Hello,
Very simple question but one I need clarified.
Which part of the statement below is considered the 'delegate'?
Is it the 'new System.EventHandler'
or the
btnAccept_Click?
or is it...
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by: Ben Voigt |
last post by:
I've extended the article "Covariance and Contravariance in Delegates" from
the C# Programmers' Guide, and it seems contravariance of delegates is
implemented wrong.
Lambda calculus states that...
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by: =?Utf-8?B?aGVyYmVydA==?= |
last post by:
Jon Skeet wrote in the .NET general newsgroup 11/17/2005:
"The difference between Invoke and DynamicInvoke is that the parameters
to Invoke depend on the delegate itself - the method has the same...
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by: =?Utf-8?B?RnJhbmsgVXJheQ==?= |
last post by:
Hi all
I have some problems with Crystal Reports (Version 10.2, Runtime 2.0).
In Section3 I have added a OLE Object (Bitmap).
Now when I open the report in my code I would
like to set this...
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by: Anders Borum |
last post by:
Hello,
I've worked on an API for quite some time and have (on several occasions)
tried to introduce generics at the core abstract level of business objects
(especially a hierarchical node). The...
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by: ryjfgjl |
last post by:
In our work, we often receive Excel tables with data in the same format. If we want to analyze these data, it can be difficult to analyze them because the data is spread across multiple Excel files...
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by: nemocccc |
last post by:
hello, everyone, I want to develop a software for my android phone for daily needs, any suggestions?
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by: Hystou |
last post by:
There are some requirements for setting up RAID:
1. The motherboard and BIOS support RAID configuration.
2. The motherboard has 2 or more available SATA protocol SSD/HDD slots (including MSATA, M.2...
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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,...
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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...
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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,...
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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...
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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...
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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...
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