How to save data from gridview into another sql table?

above is my grid view and I want to save that in my sql db table

I m trying this 

but it is not working

 

protected void Save_Click(object sender, EventArgs e)
{
string query2 = "INSERT INTO tbl_Pre_Y1_Bus_Master1_temp (critical,specification,one,two,three,four,five,TMLCALCULATION) VALUES (@critical,@specification,@one,@two,@three,@four,@five,@TMLCALCULATION)";
try
{
con = new SqlConnection(ConfigurationManager.ConnectionStrings["LocalSqlserver"].ConnectionString);
con.Open();
foreach (GridViewRow gvr in GridView2.Rows)
{
string data1 = gvr.Cells[0].Text; //get data from BoundField in each row
string data2 = ((Label)gvr.FindControl("Label1")).Text; //get data from control in TemplateField in each row
SqlCommand cmd = new SqlCommand(query2, con); //generate insert sql using above data
cmd.ExecuteNonQuery();
}
con.Close();
}
catch (Exception ex)
{}