Avatar

Please consider registering
guest

sp_LogInOut Log In sp_Registration Register

Register | Lost password?
Advanced Search

— Forum Scope —




— Match —





— Forum Options —





Minimum search word length is 3 characters - maximum search word length is 84 characters

sp_Feed Topic RSS sp_TopicIcon
Error while write value on extension object array
June 15, 2021
10:55, EEST
Avatar
UlrichFM
Member
Members
Forum Posts: 15
Member Since:
February 10, 2021
sp_UserOfflineSmall Offline

Hello,

I managed to write to an integer variable, but now I can’t find the correct syntax for the extensionObject .
For example, I manage to read a value in an extensionObject array like by filling in the following element :
a_pResults.Value.Value.Array.Value.ExtensionObjectArray[0].Body.Binary.Data[4]
and it return the correct value i wanted.

But, when i tried to do an assignment in this same case like this :
nodesToWrite[0].Value.Value.Value.Array.Value.ExtensionObjectArray[0].Body.Binary.Data[4] = 1;
i had an access violation error

My problem is so that i want to know to write in this same variable.
Can someone provide me with the correct syntax to write to this variable for this assignment by example please.

Thank’s

June 18, 2021
12:44, EEST
Avatar
Jouni Aro
Moderator
Moderators
Forum Posts: 1026
Member Since:
December 21, 2011
sp_UserOfflineSmall Offline

There is a well documented example on how to handle an extension object in the GettingStarted lesson06.

https://documentation.unified-automation.com/uasdkc/1.9.1/html/client_structure_datatypes.html

An example for writing to an array of extension objects including sample code can be found in the server lessons.

Forum Timezone: Europe/Helsinki

Most Users Ever Online: 1919

Currently Online:
42 Guest(s)

Currently Browsing this Page:
1 Guest(s)

Top Posters:

Heikki Tahvanainen: 402

hbrackel: 144

rocket science: 88

pramanj: 86

Francesco Zambon: 83

Ibrahim: 78

Sabari: 62

kapsl: 57

gjevremovic: 49

Xavier: 43

Member Stats:

Guest Posters: 0

Members: 726

Moderators: 7

Admins: 1

Forum Stats:

Groups: 3

Forums: 15

Topics: 1529

Posts: 6471

Newest Members:

gabriellabachus, Deakin, KTP25Zof, Wojciech Kubala, efrennowell431, wilfredostuart, caitlynfajardo, jeromechubb7, franciscagrimwad, adult_gallery

Moderators: Jouni Aro: 1026, Pyry: 1, Petri: 0, Bjarne Boström: 1032, Jimmy Ni: 26, Matti Siponen: 349, Lusetti: 0

Administrators: admin: 1