I have the following VB.NET class definition:
<Serializable()> Partial Public Class Customers
End Class
Inside another file I have the same thing (with different methods and variables of course). When I compile, I get the following error:
Attribute 'SerializableAttribute' cannot be applied multiple times.
The error is pretty self explanatory. My question is though, if I just mark the one class as Serializable(), can I assume the entire class with be marked as serializable()? In other words, Do I only need the serializable() tag in 1 spot in the class?
Partial classes help split the methods into two or more source(. cs) files. All the partial classes will be combined when the whole program is compiled. Partial Class is a unique feature of C#. It can break the functionality of a single class into many files.
partial classes can work by convention. For example consider this convention. // file main function SomeObject() { for (var i = 0, ii = SomeObject. Partial.
You can have multiple constructors in a class defined with partial, but each constructor must be unique (even if they're in different files).
Partial classes are portions of a class that the compiler can combine to form a complete class. Although you could define two or more partial classes within the same file, the general purpose of a partial class is to allow the splitting of a class definition across multiple files.
You only need it marked once per class so in a class with more than one 'partial' definitation, you should just remove it from all the other files. The whole 'partial' thing is just a way of visualizing your code so when you apply it once, it will be for the whole class.
Yes, you only need to put it in one of the Partial Classes:
http://msdn.microsoft.com/en-us/library/wa80x488.aspx
At compile time, attributes of partial-type definitions are merged.
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