I have a radio button (A,B)

1.When i select a from radio button i will get a values from Table A in repeating grid,where i can update the changes as required.

2.When i select B it should throw some warning messages stating that some changes are there do you need to reset it to pull the data from B.

Here my question is how to show a warning message by checking OOTB property (IsDirty=='true').

***Edited by Moderator: Lochan to update platform capability tags***