Question : google site comparison tool

I found this interesting tool.  What I was after is being able to put in a website such as the one shown here http://trends.google.com/websites?q=dice.com&geo=all&date=all&sort=0 and show not just similar search terms but where dice stands in a side-by-side comparison to them.

Can I get any closer?

Answer : google site comparison tool

You need to handle the CellEndEdit event. This is where you can get the changed value and save the modified value to your database.
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private void dataGridView1_CellEndEdit(object sender, DataGridViewCellEventArgs e)
{
    if (e.ColumnIndex == 0)
    {
        string changedValue = dataGridView1.Rows[e.RowIndex].Cells[e.ColumnIndex].Value.ToString();
        // go ahead with saving the new value here
    }
}
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