bitwise [OR]

[David]

hi, I have a question.
I have a method written by ASP, and I need to convert to c# asp.net:

[ASP]
call method1 ( 32 or 2 )

this method's parameter is using the bitwise Or operator.
but when I convert to c#:
[c#]
method1 ( 32 | 2 );

I got this error msg after compelie:
Cannot covert 'int' to 'SdfComponentToolkit.SdfOpenFlags'

SdfComponentToolkit is a Map tools, made by Autodesk.

Thanks, David.

 

[David]

SdfOpenFlags flags_32 = SdfOpenFlags.sdfOpenUpdate ;

I found it at Autodesk.com.



David.

 

[Miha Markic [MVP C#]]

Hi David,

Your method is expecting a parameter of type
'SdfComponentToolkit.SdfOpenFlags' and not an int.
VB does conversion automatically unless otherwise requested in Option Strict
thing while C# is always strict on casts.
So, you have two options: either cast result to
'SdfComponentToolkit.SdfOpenFlags' like
method1((SdfComponentToolkit.SdfOpenFlags)(32 | 2))
or use flags directly (which is a way beter and more readable route)
method1 (someFlag | otherFlag)

However, why are you calling something with fixed value "32 or 2" is
puzzling me. Why don't you just pass a correct flag?

 

[Richard Blewett [DevelopMentor]]

hi, I have a question.
I have a method written by ASP, and I need to convert to c# asp.net:

[ASP]
call method1 ( 32 or 2 )

this method's parameter is using the bitwise Or operator.
but when I convert to c#:
[c#]
method1 ( 32 | 2 );

I got this error msg after compelie:
Cannot covert 'int' to 'SdfComponentToolkit.SdfOpenFlags'

SdfComponentToolkit is a Map tools, made by Autodesk.

Thanks, David.

Cast the bitwise or'd value to an SdfOpenFlags enum value (which is what the
method requires by the sound of it). ASP was doing the type conversion
sliently behind the scenes.

method1 ( (SdfOpenFlags )(32 | 2) );

Regards

Richard Blewett - DevelopMentor
http://www.dotnetconsult.co.uk/weblog
http://www.dotnetconsult.co.uk

 

[David]

Thanks, Richard.
Your solution is very good!

David.