how to show a wait cursor in windows form

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C#

i have a windows form which deals with database coding.
its quite simple code but it takes almost 4 sec to complete. but i want to show wait cursor or app starting cursor is the code is stated and the cursor with be back to default arrow if the code ends.
my code is like this

bool IsMatchedFound = false;
                   SqlConnection con = new SqlConnection();
                   con.ConnectionString = @"Data Source=.\SQLEXPRESS;AttachDbFilename=E:\project\sample project\prject xample2 perfect\login\Database1.mdf;Integrated Security=True;User Instance=True";
                   try
                   {
                       con.Open();
                       string qry1 = "Select * from Table1 WHERE password = @password COLLATE SQL_Latin1_General_CP1_CS_AS and Username=@Username COLLATE SQL_Latin1_General_CP1_CS_AS";
                       SqlCommand com = new SqlCommand(qry1, con);
                       com.Parameters.AddWithValue("@Username", this.usernamelabel.Text);
                       com.Parameters.AddWithValue("@Password", this.textBox1.Text);
                       SqlDataReader dr = com.ExecuteReader();
                       while (dr.Read())
                       {
                           if (dr.HasRows == true)
                           {
                               IsMatchedFound = true;
                               break;
                           }
                       }

                   }
                   catch (Exception)
                   {
                       MessageBox.Show("Error with the databse connection");
                   }
                   con.Close();
               }
               catch (Exception ex)
               {
                   MessageBox.Show(ex.ToString());
               }