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New Message on BDOTNET
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From: LovedJohnySmith
Message 1 in Discussion
Hi Muthu,
When you make changes to column values in a DataRow, the changes are
immediately placed in the Current state of the row. The RowState is then set to
Modified and the changes are accepted or rejected using the AcceptChanges or
RejectChanges methods of the DataRow. The DataRow also provides three methods
that you can use to suspend the state of the row while you are editing it.
These methods are BeginEdit, EndEdit, and CancelEdit.When you modify column
values in a DataRow directly, the DataRow manages the column values using the
Current, Default, and Original row versions. In addition to these row versions,
the BeginEdit, EndEdit, and CancelEdit methods use a fourth row version:
Proposed.The Proposed row version exists during an edit operation that is begun
by calling BeginEdit and that is ended by using either EndEdit or CancelEdit or
by calling AcceptChanges or RejectChanges.During the edit operation you can
apply validation logic to individual columns by evaluating the ProposedValue in
the ColumnChanged event of the DataTable. The ColumnChanged event holds
DataColumnChangeEventArgs that keep a reference to the column that is changing
and the ProposedValue. After you evaluate the proposed value, you can either
modify it or cancel the edit. When the edit is ended, the row moves out of the
Proposed state.
I hope you may clear rite now... pls lemmi noe if u still not clear.
Regards,
Smith
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