1  DataGridViewComboBoxCell cbCell = new DataGridViewComboBoxCell();
2  string[] jgStr = new string[] {"砖混", "框混", "全框架", "其它" };
3  cbCell.DataSource = jgStr;                   
5  cbCell.Value =“框混”; 
7  dGModelInfo.Rows[rowCount].Cells["Value"] = cbCell;

 1 private void dataGridView1_EditingControlShowing(object sender, DataGridViewEditingControlShowingEventArgs e)
 2         {
 3             if (e.Control is DataGridViewTextBoxEditingControl)
 4             {
 5                 TextBox textbox = (TextBox)e.Control;
 6                 // Panel p = (Panel)textbox.Parent;       //找到当前的父控件，其实就是一个Panel，你将此Panel中的控件清空，然后你就可以在Panel中加入任何控件并随意布局了
 7                 Panel p = (Panel)e.Control.Parent;
 8                 p.Controls.Clear();
 9                 Button btn =new Button();
10                 btn.Text="aaa";
11                 btn.Click +=new EventHandler(btn_Click);
12                 p.Controls.Add(btn);
13             }
14         }