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ENGLISH SITE.
"Why don't you tie a kerosene-soaked rag around your ankles so the ants won't climb up and eat your candy ass..." - Dale Earnhardt, 1997
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"...the staggering layers of obscenity in your statement make it a work of art on so many levels." - Jason Jystad, 10/26/2001
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Hello All,
I am about to create a custom windowing system for both native C++ and fully managed .NET applications (plus perhaps non-Windows platforms as well). Although some aspects of the code, such as rendering routines, are environment-dependent and must be rewritten, there are certain immutable elements, such as behavior of common controls (e.g. reaction of a button or an edit control to user's input, or logical events that these controls can fire, such as "Clicked" in a button, or "TextChanged" in an edit control).
Therefore, I would like to code these reusable parts only once.
I know one solution would be to implement them in C++ and then wrap them up in a C++/CLI managed assembly. However, the managed interface must be written in order to reflect all events, methods and properties from the C++ implementation to .NET. That forces me to add each new event or property in two places: one in the C++ part, and another one in the C++/CLI interface, which is something I don't want.
Considering I have my own RTTI implementation in my native C++ library, would it be feasible to automatically generate required .NET wrappers?
Note that I would like to use the library with comparable ease in both C++ and C#. If I got a std::string EditBox::Text in C++, there must be a string EditBox.Text
in C# (and not a System.Runtime.InteropServices.Marshal.GetMyDamnedString(IntPtr(EditBox.Tag).ToPointer()), nor any similarly beautiful construct).
That's quite an architectural question, but I didn't want to crosspost - that's why it ended up here. 
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Hello,
the common codebase of C++ and C# is C language.
So, code the oldie-goldie and forget the fancy-sissies-object-oriented-paradigms.
If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler.
-- Alfonso the Wise, 13th Century King of Castile.
This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong.
-- Iain Clarke
[My articles]
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Hi, thanks for your voice.
My question was rather on how to automatically generate .NET wrappers for an existing native C++ code (or code the C++ core logic in a way that it can be easily reused with .NET, without manual reflection of each change).
Perhaps I might use C++/CLI-based tool to convert my own existing RTTI to the .NET Reflection, and compile the generated .NET classes into a new managed assembly?
What do you people think?
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My question is: Why should you do that?
Cannot you live happy with a fully managed solution?
If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler.
-- Alfonso the Wise, 13th Century King of Castile.
This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong.
-- Iain Clarke
[My articles]
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Not in this case. Although most of my projects are fully managed, I would also like to use this particular library for certain time-critical applications written in native C++, whose performance might suffer from .NET boxing.
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Performance and interoperability are often on opposite sides, hence I suppose your task will be hard: Good luck.
If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler.
-- Alfonso the Wise, 13th Century King of Castile.
This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong.
-- Iain Clarke
[My articles]
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i just want i full code to how i export any datagridview into a csv filein windows applications.i need it immidiatlly
rana sallam
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rana_cisco wrote: need it immidiatlly
+5 kudo's for asking nicely.
I are troll
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rana_cisco wrote: i need it immidiatlly
really?
Tan Li
I Love KongFu~
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rana_cisco wrote: i need it immidiatlly
..along with a dictionary and lessons in manners. The idea is YOU try and write the code and get help on specific problems.
Bob
Ashfield Consultants Ltd
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Hello everyone,
1.
Here is one of the field of my class. During deserialization, if the counter attribute is null, the deserialization could still be successful. Any ideas to make deserialization be smarter to treat counter as a non-null (must to have value) attribute?
2.
Any other ways to make deserialization be even smarter to treat counter as an integer other than string? (i.e. if in the XML file, counter attribute is assigned to non-numeric value, deserialization will fail.)
[XmlAttribute("counter")]
public string counter;
thanks in advance,
George
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George_George wrote: Any other ways to make deserialization be even smarter to treat counter as an integer other than string?
Why not just make the counter field an integer in the first place?
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Thanks Colin,
I have tried but still InvalidOperationException, the exception message is "There is an error in XML document (1, 14)."
Here is my code, any ideas?
using System;
using System.ComponentModel;
using System.IO;
using System.Xml.Serialization;
public class Bar
{
[XmlAttribute(DataType = "int", AttributeName = "counter")]
[System.ComponentModel.DefaultValueAttribute(0)]
public int counter;
}
static class Program
{
static void Main()
{
Bar a = Read(@"<Bar counter=10/>");
return;
}
static Bar Read(string xml)
{
Bar bar = (Bar)new XmlSerializer(typeof(Bar)).Deserialize(new StringReader(xml));
return bar;
}
}
regards,
George
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iam not able to cut,copy,paste a usercontrol(picturebox) on a form.As such there is no buitin cut,copy,paste property for a picturebox.
i want code to add cut,copy,paste property for a picturebox control on the form design at runtime in vc#.net.
Please let me know how to add a property for the usercontrol . or let me know if u need any more details regarding this.
shabana
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You will need to add a context menu for right click functionality, keyboard handlers using keydown or keypress for keyboard shortcut functionality and use the System.Windows.Clipboard or System.Windows.Forms.Clipboard class.
Additionaly you may need to override WndProc, PreProcessMessage and maybe ProcessMnemonic.
Some or all of these should solve your problem.
DaveBTW, in software, hope and pray is not a viable strategy. (Luc Pattyn)Visual Basic is not used by normal people so we're not covering it here. (Uncyclopedia)
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Hey everyone,
I would like to break through 2 loops with just one rule.
Something like this:
for(;;)
{
for(;;)
{
}
}
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Hi,
there are several ways of breaking out of several loops:
1. change the state such that all the continuation tests will fail, and break (one way of achieving this is by adding a boolean test to each and every continuation test)
2. create a method that contains nothing but the loops, and return where you want to break out;
3. throw an exception and catch it where you need to.
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Yes I've thought of those options too, but I don't want to break with extra code, not even a boolean.
With 'break;' you will exit one loop. But isn't there something like break * 2;
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Deresen wrote: But isn't there something like break * 2;
You will end up in goto.
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Hi,
No. Although there are languages that support break <count> C# isn't one of them.
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Luc Pattyn wrote: 3. throw an exception and catch it where you need to.
Exceptions to control program flow? Isn't that a crime?
Regards,
Rob Philpott.
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Hi,
Rob Philpott wrote: Exceptions to control program flow? Isn't that a crime?
Not always. The OP didn't mention why nor how often he would break out of all loops.
Exceptions always operate on program flow, they exist to make life easier and code more reliable. Not making good use of available means would be a crime. Depending on circumstances, one has to make a good choice, that is why I gave three possibilities.
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Rob Philpott wrote: Exceptions to control program flow? Isn't that a crime?
Nope, if the condition that breaks the loops is exceptional. 
If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler.
-- Alfonso the Wise, 13th Century King of Castile.
This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong.
-- Iain Clarke
[My articles]
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Agreed. But use otherwise deserves a slap!
Regards,
Rob Philpott.
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