C# datagridview argument out of range exception -

C# datagridview argument out of range exception -

i have datagridview , trying add together new row it. has 3 columns, 0 = image, 1 = text, 2 = text.

it adds first row fine, when click 1 time again add together sec row throws exception.

datagridviewrow row = new datagridviewrow(); datagridview.rows.add(row); row.cells[1].value = message; //specified argument out of range of valid values. row.cells[2].value = response;

//try : datagridview.rows.add(null,message,response)

c# datagridview