Default value attribute for type.

  • Thread starter Thread starter Mr. X.
  • Start date Start date
M

Mr. X.

In C# there is no optional parameter.
I use instead, what program that convert from VB.NET to C# recommand me to
do.

For optional parameter that is "Type" passed. What is the
defaultParameterValueAttribute -
compiler shouts that :
The DefaultValue attribute is not applicable on parameters of type
'System.Type' ...

The code :
[System.Runtime.InteropServices.OptionalAttribute,
System.Runtime.InteropServices.DefaultParameterValueAttribute(null)] ref
Type myType,

(Seems to long for setting optional attribute & default : null. in VB.NET it
was too short.
I think that instead of null, I should write something that "Type" can get
as a default).

How to solve the problem ?

Thanks :)
 
In C# there is no optional parameter.
I use instead, what program that convert from VB.NET to C# recommand me to
do.

For optional parameter that is "Type" passed. What is the
defaultParameterValueAttribute -
compiler shouts that :
The DefaultValue attribute is not applicable on parameters of type
'System.Type' ...

The code :
[System.Runtime.InteropServices.OptionalAttribute,
System.Runtime.InteropServices.DefaultParameterValueAttribute(null)] ref
Type myType,

(Seems to long for setting optional attribute & default : null. in VB.NET
it was too short.
I think that instead of null, I should write something that "Type" can get
as a default).

How to solve the problem ?
Click to expand...

MSDN says this about DefaultParameterValueAttribute: "Sets the default value
of a parameter when called from a language that supports default
parameters."

C# (before 4.0) is not one of those languages; you must use method
overloading.
 
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