Is StringBuilder class Value type?

  • Thread starter Thread starter sameem
  • Start date Start date
S

sameem

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
 
sameem said:
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?
Click to expand...

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.ValueType) or it is a class itself ->
reference type, if it is a struct (e.g. Int32) or if it inherits from
System.ValueType, it is a value type. A struct automatically inherits
from System.ValueType, 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#)
------------------------------------------------------------------------
 
Thanks a lot.

Frans Bouma said:
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.ValueType) or it is a class itself ->
reference type, if it is a struct (e.g. Int32) or if it inherits from
System.ValueType, it is a value type. A struct automatically inherits
from System.ValueType, 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#)
Click to expand...
 
Back
Top