Unhandled exception when sorting the ErrorManagement text list

Corrected from:
PLC Designer V3.28

Response of the new version:
Sorting the 'ErrorManagement-Textlist' via the column titles does not lead to an exception.
 
What happens?
When clicking on a column title of the message table within the 'ErrorManagement-Textlist' object to sort the table by this column, an unhandled exception occurs. Click on <Next> to save the project. Click on <Exit> to exit the PLC Designer without saving the project.

When does the behaviour occur?
If there is more than one line in the message table of the 'ErrorManagement-Textlist' object that does not contain a value in column ID, an unhandled exception occurs when sorting the table by clicking on the column title. This case can occur, for example, when importing an ErrorManagement-Textlist, if this list has several "empty rows".
 
Which products are affected?
PLC Designer from V3.24

Short-term measures:
Make sure that only one line in the ID column does not contain a value. If necessary, enter the missing value later.

Evaluation / recommendations:
With the ErrorManagement-TextList, project-specific message texts can be entered, which lead to an entry in the logbook with this text when the message is triggered from the PLC programme. Sorting the message texts can lead to an error message if there are several lines in the message table without a message number.


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