Is StringBuilder class Value type?

[=?Utf-8?B?c2FtZWVt?=]

Dear All

up to my level that I have known the StringBuilder class is reference type.
Someone telling that StringBuilder class is Value type.

Hence I want to clarify which is right? and how?

Regards
Sam

[Frans Bouma [C# MVP]]

Re: Is StringBuilder class Value type?

sameem wrote:

Dear All
>
up to my level that I have known the StringBuilder class is reference type.
Someone telling that StringBuilder class is Value type.
>
Hence I want to clarify which is right? and how?

It's a reference type. String is also a reference type (though it
behaves like a valuetype). To determine if a type is a valuetype or a
reference type, you can look into the MSDN, lookup the type's
documentation page, and you can see if it inherits from a class (except
when it inherits from System.ValueTyp e) or it is a class itself ->
reference type, if it is a struct (e.g. Int32) or if it inherits from
System.ValueTyp e, it is a value type. A struct automatically inherits
from System.ValueTyp e, see reflector on System.Int32 for example.

In general, a type which is mutable is likely to be a reference type,
or at least should be a reference type, according to MS guidelines.

So first thing to check: documentation.

FB

--
------------------------------------------------------------------------
Lead developer of LLBLGen Pro, the productive O/R mapper for .NET
LLBLGen Pro website: http://www.llblgen.com
My .NET blog: http://weblogs.asp.net/fbouma
Microsoft MVP (C#)
------------------------------------------------------------------------

[=?Utf-8?B?c2FtZWVt?=]

Re: Is StringBuilder class Value type?

Thanks a lot.

"Frans Bouma [C# MVP]" wrote:

sameem wrote:

Dear All

up to my level that I have known the StringBuilder class is reference type.
Someone telling that StringBuilder class is Value type.

Hence I want to clarify which is right? and how?

>
It's a reference type. String is also a reference type (though it
behaves like a valuetype). To determine if a type is a valuetype or a
reference type, you can look into the MSDN, lookup the type's
documentation page, and you can see if it inherits from a class (except
when it inherits from System.ValueTyp e) or it is a class itself ->
reference type, if it is a struct (e.g. Int32) or if it inherits from
System.ValueTyp e, it is a value type. A struct automatically inherits
from System.ValueTyp e, see reflector on System.Int32 for example.
>
In general, a type which is mutable is likely to be a reference type,
or at least should be a reference type, according to MS guidelines.
>
So first thing to check: documentation.
>
FB
>
--
------------------------------------------------------------------------
Lead developer of LLBLGen Pro, the productive O/R mapper for .NET
LLBLGen Pro website: http://www.llblgen.com
My .NET blog: http://weblogs.asp.net/fbouma
Microsoft MVP (C#)
------------------------------------------------------------------------
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