What’s the use of CommandBuilder ? Dot Net Interview Questions.

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CommandBuilder builds “Parameter” objects automatically.

Below is a simple code which uses commandbuilder to load its parameter object’s.

Dim pobjCommandBuilder As New OleDbCommandBuilder(pobjDataAdapter) pobjCommandBuilder.DeriveParameters(pobjCommand)

Be careful while using “DeriveParameters” method as it needs a extra trip to the Datastore which can be very inefficient.