Can I Add Error Handling To An Existing Partial Class?
I have an existing partial class that has no error handling (any errors are simply thrown to the consuming code).
In the example below, I would like to add error management to MyClass to provide better information to the consuming class. (I have already added a Helper partial class to MyClass for other reasons).
What I can't work how to do - if it's possible - is how to extend the partial class with error management (trapping, conversion to a class error property, etc).
Example:
partial class MyClass
{
static void MyMethod()
{
throw new Exception("An error from MyClass.MyMethod");
}
void MyTest()
{
MyMethod();
}
}
Here, when MyTest.MyMethod() is called, an unhandled exception is thrown.
Ideally, I would be able to add a partial extension to MyClass which traps and manages such errors within the class. Obviously, I could wrap the class and manage the errors there, and perhaps the best/only way to do it, but I'd like opinions.
NOTE: Let's assume I have no control over MyClass tho in reality, in this instance, it's code generated by Swagger CodeGen, so I kinda do, but I'd rather not break into code generation any more than I already have.
c# error-handling
asked Jan 20 at 0:23
SteveCinqSteveCinq
556612
add a comment |
I have an existing partial class that has no error handling (any errors are simply thrown to the consuming code).
In the example below, I would like to add error management to MyClass to provide better information to the consuming class. (I have already added a Helper partial class to MyClass for other reasons).
What I can't work how to do - if it's possible - is how to extend the partial class with error management (trapping, conversion to a class error property, etc).
Example:
partial class MyClass
{
static void MyMethod()
{
throw new Exception("An error from MyClass.MyMethod");
}
void MyTest()
{
MyMethod();
}
}
Here, when MyTest.MyMethod() is called, an unhandled exception is thrown.
Ideally, I would be able to add a partial extension to MyClass which traps and manages such errors within the class. Obviously, I could wrap the class and manage the errors there, and perhaps the best/only way to do it, but I'd like opinions.
NOTE: Let's assume I have no control over MyClass tho in reality, in this instance, it's code generated by Swagger CodeGen, so I kinda do, but I'd rather not break into code generation any more than I already have.
c# error-handling
asked Jan 20 at 0:23
SteveCinqSteveCinq
556612
I'm not really sure I understand the premise of the question. If you're adding a partial class, can't you just add whatever you want to it? What have you tried? What's not working vs your expectations?
– gilliduck
Jan 20 at 3:00
@gilliduck Yes, sure I can add to the class, but I can't, say, intercept the throwing of an exception from a method within the original (partial) class (that I know of). And, yes, of course I've had a go and searched the web and SO; I'm here asking because I haven't arrived at a solution.
– SteveCinq
Jan 20 at 3:35
add a comment |
I have an existing partial class that has no error handling (any errors are simply thrown to the consuming code).
In the example below, I would like to add error management to MyClass to provide better information to the consuming class. (I have already added a Helper partial class to MyClass for other reasons).
What I can't work how to do - if it's possible - is how to extend the partial class with error management (trapping, conversion to a class error property, etc).
Example:
partial class MyClass
{
static void MyMethod()
{
throw new Exception("An error from MyClass.MyMethod");
}
void MyTest()
{
MyMethod();
}
}
Here, when MyTest.MyMethod() is called, an unhandled exception is thrown.
Ideally, I would be able to add a partial extension to MyClass which traps and manages such errors within the class. Obviously, I could wrap the class and manage the errors there, and perhaps the best/only way to do it, but I'd like opinions.
NOTE: Let's assume I have no control over MyClass tho in reality, in this instance, it's code generated by Swagger CodeGen, so I kinda do, but I'd rather not break into code generation any more than I already have.
c# error-handling
asked Jan 20 at 0:23
SteveCinqSteveCinq
556612
I have an existing partial class that has no error handling (any errors are simply thrown to the consuming code).
In the example below, I would like to add error management to MyClass to provide better information to the consuming class. (I have already added a Helper partial class to MyClass for other reasons).
What I can't work how to do - if it's possible - is how to extend the partial class with error management (trapping, conversion to a class error property, etc).
Example:
partial class MyClass
{
static void MyMethod()
{
throw new Exception("An error from MyClass.MyMethod");
}
void MyTest()
{
MyMethod();
}
}
Here, when MyTest.MyMethod() is called, an unhandled exception is thrown.
Ideally, I would be able to add a partial extension to MyClass which traps and manages such errors within the class. Obviously, I could wrap the class and manage the errors there, and perhaps the best/only way to do it, but I'd like opinions.
NOTE: Let's assume I have no control over MyClass tho in reality, in this instance, it's code generated by Swagger CodeGen, so I kinda do, but I'd rather not break into code generation any more than I already have.
c# error-handling
c# error-handling
asked Jan 20 at 0:23
SteveCinqSteveCinq
556612
asked Jan 20 at 0:23
SteveCinqSteveCinq
556612
asked Jan 20 at 0:23
SteveCinqSteveCinq
556612
asked Jan 20 at 0:23
SteveCinqSteveCinq
556612
asked Jan 20 at 0:23
SteveCinqSteveCinq
556612
556612
I'm not really sure I understand the premise of the question. If you're adding a partial class, can't you just add whatever you want to it? What have you tried? What's not working vs your expectations?
– gilliduck
Jan 20 at 3:00
@gilliduck Yes, sure I can add to the class, but I can't, say, intercept the throwing of an exception from a method within the original (partial) class (that I know of). And, yes, of course I've had a go and searched the web and SO; I'm here asking because I haven't arrived at a solution.
– SteveCinq
Jan 20 at 3:35
add a comment |
I'm not really sure I understand the premise of the question. If you're adding a partial class, can't you just add whatever you want to it? What have you tried? What's not working vs your expectations?
– gilliduck
Jan 20 at 3:00
@gilliduck Yes, sure I can add to the class, but I can't, say, intercept the throwing of an exception from a method within the original (partial) class (that I know of). And, yes, of course I've had a go and searched the web and SO; I'm here asking because I haven't arrived at a solution.
– SteveCinq
Jan 20 at 3:35
I'm not really sure I understand the premise of the question. If you're adding a partial class, can't you just add whatever you want to it? What have you tried? What's not working vs your expectations?
– gilliduck
Jan 20 at 3:00
I'm not really sure I understand the premise of the question. If you're adding a partial class, can't you just add whatever you want to it? What have you tried? What's not working vs your expectations?
– gilliduck
Jan 20 at 3:00
@gilliduck Yes, sure I can add to the class, but I can't, say, intercept the throwing of an exception from a method within the original (partial) class (that I know of). And, yes, of course I've had a go and searched the web and SO; I'm here asking because I haven't arrived at a solution.
– SteveCinq
Jan 20 at 3:35
@gilliduck Yes, sure I can add to the class, but I can't, say, intercept the throwing of an exception from a method within the original (partial) class (that I know of). And, yes, of course I've had a go and searched the web and SO; I'm here asking because I haven't arrived at a solution.
– SteveCinq
Jan 20 at 3:35
add a comment |
2 Answers
2
active
oldest
votes
If I understand, you are asking if you can manipulate method invocations/control flow by adding something in a second partial class fie without any modification to the first file. As far as I am aware -- You cannot manipulate existing methods or the control flow from a partial class. Partial classes only allow you to split the definition into multiple files. I believe the only way to add error handling, without modifying the original methods, is to adapt or wrap (or inherit if they happen to be virtual).
answered Jan 20 at 3:20
Jonathon KJonathon K
715
Thanks. Your reading of the question is correct. That's what I expected, but I wanted input from better C# coders than I. I've since read about some third-party class wrappers which can provide class error handling but I don't want to add in a TP reference.
– SteveCinq
Jan 20 at 3:37
add a comment |
I think the best solutions will be inheritance from andor writing wrapper of your class.
Other methods may be little crazy, like
https://doc.postsharp.net/method-decorator
https://www.codeproject.com/Articles/16359/%2FArticles%2F16359%2FMethodLogger-Hook-into-method-calls-in-NET-binarie
However also it may be better just to handle exceptions in consuming code.
answered Jan 20 at 14:45
woldemarwoldemar
6747
add a comment |
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2 Answers
2
active
oldest
votes
2 Answers
2
active
oldest
votes
active
oldest
votes
active
oldest
votes
If I understand, you are asking if you can manipulate method invocations/control flow by adding something in a second partial class fie without any modification to the first file. As far as I am aware -- You cannot manipulate existing methods or the control flow from a partial class. Partial classes only allow you to split the definition into multiple files. I believe the only way to add error handling, without modifying the original methods, is to adapt or wrap (or inherit if they happen to be virtual).
answered Jan 20 at 3:20
Jonathon KJonathon K
715
Thanks. Your reading of the question is correct. That's what I expected, but I wanted input from better C# coders than I. I've since read about some third-party class wrappers which can provide class error handling but I don't want to add in a TP reference.
– SteveCinq
Jan 20 at 3:37
add a comment |
If I understand, you are asking if you can manipulate method invocations/control flow by adding something in a second partial class fie without any modification to the first file. As far as I am aware -- You cannot manipulate existing methods or the control flow from a partial class. Partial classes only allow you to split the definition into multiple files. I believe the only way to add error handling, without modifying the original methods, is to adapt or wrap (or inherit if they happen to be virtual).
answered Jan 20 at 3:20
Jonathon KJonathon K
715
Thanks. Your reading of the question is correct. That's what I expected, but I wanted input from better C# coders than I. I've since read about some third-party class wrappers which can provide class error handling but I don't want to add in a TP reference.
– SteveCinq
Jan 20 at 3:37
add a comment |
If I understand, you are asking if you can manipulate method invocations/control flow by adding something in a second partial class fie without any modification to the first file. As far as I am aware -- You cannot manipulate existing methods or the control flow from a partial class. Partial classes only allow you to split the definition into multiple files. I believe the only way to add error handling, without modifying the original methods, is to adapt or wrap (or inherit if they happen to be virtual).
answered Jan 20 at 3:20
Jonathon KJonathon K
715
If I understand, you are asking if you can manipulate method invocations/control flow by adding something in a second partial class fie without any modification to the first file. As far as I am aware -- You cannot manipulate existing methods or the control flow from a partial class. Partial classes only allow you to split the definition into multiple files. I believe the only way to add error handling, without modifying the original methods, is to adapt or wrap (or inherit if they happen to be virtual).
answered Jan 20 at 3:20
Jonathon KJonathon K
715
answered Jan 20 at 3:20
Jonathon KJonathon K
715
answered Jan 20 at 3:20
Jonathon KJonathon K
715
answered Jan 20 at 3:20
Jonathon KJonathon K
715
715
Thanks. Your reading of the question is correct. That's what I expected, but I wanted input from better C# coders than I. I've since read about some third-party class wrappers which can provide class error handling but I don't want to add in a TP reference.
– SteveCinq
Jan 20 at 3:37
add a comment |
Thanks. Your reading of the question is correct. That's what I expected, but I wanted input from better C# coders than I. I've since read about some third-party class wrappers which can provide class error handling but I don't want to add in a TP reference.
– SteveCinq
Jan 20 at 3:37
Thanks. Your reading of the question is correct. That's what I expected, but I wanted input from better C# coders than I. I've since read about some third-party class wrappers which can provide class error handling but I don't want to add in a TP reference.
– SteveCinq
Jan 20 at 3:37
Thanks. Your reading of the question is correct. That's what I expected, but I wanted input from better C# coders than I. I've since read about some third-party class wrappers which can provide class error handling but I don't want to add in a TP reference.
– SteveCinq
Jan 20 at 3:37
add a comment |
I think the best solutions will be inheritance from andor writing wrapper of your class.
Other methods may be little crazy, like
https://doc.postsharp.net/method-decorator
https://www.codeproject.com/Articles/16359/%2FArticles%2F16359%2FMethodLogger-Hook-into-method-calls-in-NET-binarie
However also it may be better just to handle exceptions in consuming code.
answered Jan 20 at 14:45
woldemarwoldemar
6747
add a comment |
I think the best solutions will be inheritance from andor writing wrapper of your class.
Other methods may be little crazy, like
https://doc.postsharp.net/method-decorator
https://www.codeproject.com/Articles/16359/%2FArticles%2F16359%2FMethodLogger-Hook-into-method-calls-in-NET-binarie
However also it may be better just to handle exceptions in consuming code.
answered Jan 20 at 14:45
woldemarwoldemar
6747
add a comment |
I think the best solutions will be inheritance from andor writing wrapper of your class.
Other methods may be little crazy, like
https://doc.postsharp.net/method-decorator
https://www.codeproject.com/Articles/16359/%2FArticles%2F16359%2FMethodLogger-Hook-into-method-calls-in-NET-binarie
However also it may be better just to handle exceptions in consuming code.
answered Jan 20 at 14:45
woldemarwoldemar
6747
I think the best solutions will be inheritance from andor writing wrapper of your class.
Other methods may be little crazy, like
https://doc.postsharp.net/method-decorator
https://www.codeproject.com/Articles/16359/%2FArticles%2F16359%2FMethodLogger-Hook-into-method-calls-in-NET-binarie
However also it may be better just to handle exceptions in consuming code.
answered Jan 20 at 14:45
woldemarwoldemar
6747
answered Jan 20 at 14:45
woldemarwoldemar
6747
answered Jan 20 at 14:45
woldemarwoldemar
6747
answered Jan 20 at 14:45
woldemarwoldemar
6747
6747
add a comment |
add a comment |
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I'm not really sure I understand the premise of the question. If you're adding a partial class, can't you just add whatever you want to it? What have you tried? What's not working vs your expectations?
– gilliduck
Jan 20 at 3:00
@gilliduck Yes, sure I can add to the class, but I can't, say, intercept the throwing of an exception from a method within the original (partial) class (that I know of). And, yes, of course I've had a go and searched the web and SO; I'm here asking because I haven't arrived at a solution.
– SteveCinq
Jan 20 at 3:35