Master/Child tables - update/delete error

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I have two Master/child tables. i have bounded them on form by bindingsource. it is working ok. i can add new record in both tables. But when i try to edit/delete child record, on the form, it is done but when try to update database, it gives error "Update requires a valid UpdateCommand when passed DataRow collection with modified rows"

is there any special Update command we have to set ?

Please guide ...

Posted 21-Feb-14 17:56pm

SelfCom

Updated 21-Feb-14 18:17pm

Tadit Dash (ତଡିତ୍ କୁମାର ଦାଶ)

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Tadit Dash (ତଡିତ୍ କୁମାର ଦାଶ) 22-Feb-14 0:18am

How do you update it?

Peter Leow 22-Feb-14 1:31am

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SelfCom · Answer 1 · 2014-02-21T19:53:00

Solution 1

i got the solution. Actually in my Child table, there was no primary key, due that auto command was not generated in dataadaptar property. I set primary key to a field then again reconfigure, it is done and working ok.

ThX

Posted 21-Feb-14 19:53pm

SelfCom