invalid Cast

[Steph]

Hello,

I'm using COM object in an application. One method used give an object wich
type is object.
When I use a GetType on its, I have "System.String[*]".

I try to convert it to loop on the array of string but I have an exception
(Invalid Cast Exception)

Here is my code :
myFormule = new Formule(); //Formule is a COM object
object myTest = myFormule.GetElement;
txtInfo.AppendText("object type: " + myTest.GetType()); //<-- here I have a
System.String[*]

//convert
string[] myTbl = (string[])myTest; // <-- here I have an exception
....

What can I do to loop and get values from myTest ?

thanks for your help

Steph

[Nicholas Paldino [.NET/C# MVP]]

Steph,

That looks odd, to say the least. Can you provide the IDL or the type
library (or the DLL itself) which has the definition of the interface with
this method on it? Looking at that, it would be easier to determine what it
is actually returning. One would expect the type of what is returned to be
"String[]".
--
- Nicholas Paldino [.NET/C# MVP]
- mv*@spam.guard.caspershouse.com

"Steph" <st***@nospamplease.com> wrote in message
news:OZ**************@TK2MSFTNGP10.phx.gbl...

Hello,

I'm using COM object in an application. One method used give an object wich type is object.
When I use a GetType on its, I have "System.String[*]".

I try to convert it to loop on the array of string but I have an exception
(Invalid Cast Exception)

Here is my code :
myFormule = new Formule(); //Formule is a COM object
object myTest = myFormule.GetElement;
txtInfo.AppendText("object type: " + myTest.GetType()); //<-- here I have a System.String[*]

//convert
string[] myTbl = (string[])myTest; // <-- here I have an exception
...

What can I do to loop and get values from myTest ?

thanks for your help

Steph