Hello,
I am actually working on a Framework development, which means require a really strong coding methodology.
I am facing a problem where I do not know which System.Exception derivated class I need to throw. Basically the case is when I have a class with fields that can be optionnaly initialized by the constructor and that have methods using these fields. Which exception must I throw if the user did not initialized these fields? (which means they are null)
Here is an example:
public class MyConnection
{
private Uri endpointUri;
public Uri EndpointUri
{
get
{
return this.endpointUri;
}
set
{
this.endpointUri = value;
}
}
public MyConnection()
{
}
public MyConnection(Uri endpointUri)
{
this.endpointUri = endpointUri;
}
public FileStream GetFile()
{
if (this.endpointUri != null)
{
// My doer methods
}
else
{
throw new TheExceptionINeedToThrow("endpointUri", ...);
}
}
}
Note that I have been reading the whole "Framework Design Guidelines" chapter concerning exception handling and throwing and that I did not found any solution fitting this exact case. Or maybe I misunderstood something ...
Thanks for your help.
EDIT : The fact that I provide an empty constructor seems a bit confusing regarding my problem but it is completely voluntary. In some objects that have to comply with a range of different states that cannot be duplicated in multiple objects it is sometimes useful.