Fill the Static Datagrid View columns

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C#

Hello All,
I was trying to populate my my datagridview column.But am not sure how i have to fill the static column.am doing the same thing in Listview it works fine but when i replace with datagridview am not sure where i missed.
Here is my code so far.

 private void button9_Click(object sender, EventArgs e)
        {
            //int n = dataGridView1.Rows.Add();

            //dataGridView1.Rows[n].Cells[0].Value = "title";
            System.Messaging.Message mes;
            string m;
            int n = dataGridView1.Rows.Add();
          
            try
            {
               
                
                int len = mq.GetAllMessages().Length;
                
                if (len != 0)
                {
                    for (int i = 0; i < len; i++)
                    {
                        mes = mq.Receive(new TimeSpan(0, 0, 3));
                        mes.Formatter = new XmlMessageFormatter(new string[] { "System.String,mscorlib" });
                        m = mes.Body.ToString();
                    // listView1.Items.Add(new ListViewItem(new string[] {"1" ,"1234","BusList","TRS" ,m.ToString(), }));
//Am trying to do the samething for my datagridview.
                       dataGridView1.Rows[n].Cells[0].Value = m.ToString();
                        //   listBox1.Items.Add(m.ToString());

                    }
                }
                else
                {
                    //listView1.Items.Clear();
                    dataGridView1.ClearSelection();
                    m = "No Error Queue Message";
                    //listView1.Items.Add(m.ToString());
                    dataGridView1.Rows[n].Cells[0].Value = m.ToString();
                    
                    
                }

            }
            catch
            {
                m = "no Message";
                //listView1.Items.Add(m.ToString());
                dataGridView1.Rows[n].Cells[0].Value = m.ToString();
            }

What am trying to acheive here is am getting Queue from my MSMQ and popluate in the grid so far am getting only one message but its not looping.