checkbox - vb.net get row index id by row or cell value -

hi trying index of row through value . tried code not working there way can indexof row value.

   dim dgr new datagridviewrow()         dgr.createcells(datagridview1, new object() {"name", "dfd", "sdfdf"})         datagridview1.rows.add(dgr)         txtnameindex.text = datagridview1.rows.indexof(dgr) 

i want add value , remove value check box when check box checked value should added in datagridviewd , when same check box unchecked value should removed datagridview

    if chkbox.checked = true          row = new string() {"2", "product 2", "2000"}         datagridview1.rows.add(row)     else          value = new string() {"2", "product 2", "2000"}         datagridview1.rows.remove(value)      end if 

this how index:

dim integer = datagridview1.rows.add(dgr) 

or

dim integer = dgr.index 

for checkbox code recommend top 1 since aren't creating object datagridviewrow.