datagridview多加一行，看清楚在回,该如何处理

datagridview多加一行，看清楚在回
技术支持工程师 和 软件工程师 到底谁更好点 
还有就是 怎么给datagridview多加一行 我的datagridview 不是托控件拖出来的 是代码写出来的 
  if (gvlist == null)
  gvlist = new DataGridView();
  gvlist.AllowUserToAddRows =false;
  gvlist.AllowUserToDeleteRows = false;
  gvlist.AllowUserToResizeRows =false;  
  System.Windows.Forms.DataGridViewCellStyle dataGridViewCellStyle1 = new System.Windows.Forms.DataGridViewCellStyle();
  dataGridViewCellStyle1.BackColor = System.Drawing.Color.FromArgb(((int)(((byte)(210)))), ((int)(((byte)(225)))), ((int)(((byte)(240)))));
  //dataGridViewCellStyle1.SelectionBackColor = System.Drawing.Color.FromArgb(((int)(((byte)(192)))), ((int)(((byte)(192)))), ((int)(((byte)(255)))));
  gvlist.AlternatingRowsDefaultCellStyle = dataGridViewCellStyle1;
  gvlist.BackgroundColor = System.Drawing.Color.White;
  gvlist.ColumnHeadersHeightSizeMode = System.Windows.Forms.DataGridViewColumnHeadersHeightSizeMode.AutoSize;
  gvlist.Dock = System.Windows.Forms.DockStyle.Fill;
  gvlist.GridColor = System.Drawing.Color.FromArgb(((int)(((byte)(210)))), ((int)(((byte)(225)))), ((int)(((byte)(240)))));
  //gvlist.Location = new System.Drawing.Point(3, 103);
  //gvlist.Name = "gvlist";
  gvlist.ReadOnly = true;
  gvlist.RowHeadersVisible = false;
  gvlist.RowTemplate.Height = 23;
  gvlist.SelectionMode = System.Windows.Forms.DataGridViewSelectionMode.FullRowSelect;
  //gvlist.TabIndex = 9;
  gvlist.MultiSelect = false;
  gvlist.AutoSizeColumnsMode = DataGridViewAutoSizeColumnsMode.Fill;
  gvlist.VirtualMode = true;
  //gvlist.CellMouseDoubleClick += new System.Windows.Forms.DataGridViewCellMouseEventHandler(gvlist_CellMouseDoubleClick);
  return gvlist;

我想在加一行 显示“总计” 这行

------解决方案--------------------
gvlist.Rows.Add(new object[] {列1，列2,...})；
列的顺序和你空间中列的顺序一直就可以了