Don't see message "Record locked by another user"

[BorisS]

When I make post for a locked record, my application waits silent until this record is unlocked. What should I do to immediately get message "Record locked by another user"?

 

[Marco Kalter]

What is the value of the LockingMode property of this dataset?

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Marco Kalter
Allround Automations

 

[BorisS]

lmLockImmediate