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C# codeprotectedvoid GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
{if (e.Row.RowType== DataControlRowType.DataRow)
{if ((e.Row.RowIndex+1)%2==0 )
{
GridView1.Rows[e.Row.RowIndex-1].Cells[5].Text= (Convert.ToInt32(e.Row.Cells[5].Text)- Convert.ToInt32(GridView1.Rows[e.Row.RowIndex-1].Cells[5].Text)).ToString();
}
}
}

protected void Page_Load(object sender, EventArgs e)
{
OleDbConnection oc = new OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + Server.MapPath("db1.mdb"));
oc.Open();
OleDbDataAdapter oa = new OleDbDataAdapter("select * from A", oc);
DataSet ds = new DataSet();
oa.Fill(ds, "A");
GridView1.DataSource = ds;
GridView1.DataBind();
oc.Close();
}

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