How to delete row in listview control in VB.NET

Hi

I have a listview control in VB.NET application.
In that list view,i have displayed data like rows from
database.
For example columns are A,B and C.

A B C
xx 0 0

At the time of form load listview will be displayed with
the data of A only.
Remaining two fields data are displayed like 0
After editing database with the data of B and C.
I want to display in listview like this:

A B C
xx yy zz

If i filled listview directly,it consists of duplicate
values.
How can i remove the first value? or
How can i replace the second one in the place of first one.

If any one knows the solution please let me know.

Thanks in advance.

Mamatha