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Resolved .NET Assembly - parameters arrays are supported or unsupported?

  1. How-to
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  1. Petr Czerny
    Petr Czerny
  2. PowerBuilder
  3. Friday, 3 December 2021 15:55 PM UTC

I try call .net function (copy form PB help Calling .NET Assembly in an Application) imported by .NET DLL Importer 

  //array argument
        public void TestByteArray(byte[] bArray)
        {
            for(int i = 0; i < bArray.Length; i++)
            {
            }
        }

and get error: Error calling external object function xxxxxxx (V externí součásti došlo k výjimce.) at line 23 in function of_xxxxxxx of object nvo_test_pb.

In help is written that array of base types is supported:

PowerBuilder

C#

Array (one and two dimension)

Reference

Generic Nullable<T>

int

short

Supported

Supported

Supported

uint

ushort

Supported

Supported

Supported

long

int

Supported

Supported

Supported

longptr

int32/int64

Supported

Supported

Supported

ulong

uint

Supported

Supported

Supported

longlong

long/Int64

Supported

Supported

Supported

boolean

bool

Supported

Supported

Supported

char

string/char

Supported

Supported

Supported

string

string

Supported

Supported

Unsupported

real

float

Supported

Supported

Supported

double

double

Supported

Supported

Supported

decimal

decimal

Supported

Supported

Supported

blob

byte[]

Supported

Supported

Supported

Date

DateTime

Supported

Supported

Supported

DateTime

DateTime

Supported

Supported

Supported

Time

DateTime

Supported

Supported

Supported

But in answer:

Powerserver parameters to DotNet Component (appeon.com)

is witten by Marco Meoni: Unfortunately non-primitive type parameters such as arrays are unsupported in AppeonDotNetComponent

How is It?

Thanks.

 
  1. .NET Assembly
  2. Array
Autocomplete for DW DropDownListBox style column
Re: Data type issue in Datawindow
Responses (2)
Armeen Mazda @Appeon
Armeen Mazda @Appeon Accepted Answer Pending Moderation
  1. Friday, 3 December 2021 16:13 PM UTC
  2. PowerBuilder
  3. # 1

Are you using PowerServer?  If yes, then upgrade to PowerServer 2021 and this will work.  PowerServer 2021 doesn't have many unsupported features anymore that old generation of PowerServer had.

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Petr Czerny
Petr Czerny Accepted Answer Pending Moderation
  1. Friday, 3 December 2021 16:16 PM UTC
  2. PowerBuilder
  3. # 2

No, I use PowerBuilder.

And I try it on PB2021 too.

With same result.

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Petr Czerny
  1. Petr Czerny
  2. Friday, 3 December 2021 17:17 PM UTC
Thanks...

But I know that and I did it exactly by this.

According to the documentation, the one-dimensional array should have no restrictions.
  1. Helpful
Petr Czerny
  1. Petr Czerny
  2. Friday, 3 December 2021 17:36 PM UTC
My example is taken directly from this help.



.NET DLL Importer creates:



//*-----------------------------------------------------------------*/

//* .NET function : TestByteArray

//* Argument:

//* Blob ablo_barray

//* Return : (None)

//*-----------------------------------------------------------------*/

/* .NET function name */

String ls_function



/* Set the dotnet function name */

ls_function = "TestByteArray"



Try

/* Create .NET object */

If Not This.of_createOnDemand( ) Then

Return

End If



/* Trigger the dotnet function */

This.testbytearray(ablo_barray)

Catch(runtimeerror re_error)



If This.ib_CrashOnException Then Throw re_error



/* Handle .NET error */

This.of_SetDotNETError(ls_function, re_error.text)

This.of_SignalError( )



End Try



An error occurs when calling this function on row: This.testbytearray(ablo_barray)

  1. Helpful
Armeen Mazda @Appeon
  1. Armeen Mazda @Appeon
  2. Friday, 3 December 2021 20:39 PM UTC
Please open a support ticket and provide a test case so we can check if this is a bug: https://www.appeon.com/standardsupport/newbug
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