如何重写datagridview?

Question

如题，请给个例子。还有与datagridview配套的combo,也请给个例子。本人刚学C#。

Answer 1

DataGridView 本来就自带有显示 combo 的列: DataGridViewComboColumn

Answer 2

http://bbs.bc-cn.net/thread-208598-1-1.html

Answer 3

public partial class CustomDataGridView : DataGridView
    {
        public CustomDataGridView()
        {
            InitializeComponent();
        }        protected override void OnPaint(PaintEventArgs pe)
        {
            base.OnPaint(pe);
        }
    }public class DataGridViewComboEditBoxCell : DataGridViewComboBoxCell
    {
        public override void InitializeEditingControl(int rowIndex, object initialFormattedValue, DataGridViewCellStyle dataGridViewCellStyle)
        {
            base.InitializeEditingControl(rowIndex, initialFormattedValue, dataGridViewCellStyle);            ComboBox comboBox = base.DataGridView.EditingControl as ComboBox;
            if (comboBox != null)
            {
                comboBox.DropDownStyle = ComboBoxStyle.DropDown;
            }
        }
    }public class DataGridViewComboEditBoxColumn : DataGridViewComboBoxColumn
    {
        public DataGridViewComboEditBoxColumn()
        {
            DataGridViewComboEditBoxCell cell = new DataGridViewComboEditBoxCell();
            this.CellTemplate = cell;
        }
    }

Answer 4

            SqlConnection sql = new SqlConnection(@"Data Source=LIUFENG\SQLEXPRESS;Initial Catalog=liufeng;Integrated Security=True");
            sql.Open();
            SqlCommand cmd = new SqlCommand("Select * from CrmCustomer", sql);
            DataSet dss = new DataSet();
            SqlDataAdapter da = new SqlDataAdapter(cmd);
            da.Fill(dss);
            sql.Close();
            DataTable dt = dss.Tables[0];
            this.dataGridView.DataSource = dt;
            DataGridViewComboBoxColumn colums = new DataGridViewComboBoxColumn();
            colums.DataSource = dt;
            colums.DisplayMember = "name";
            colums.ValueMember = "ID";
            colums.DisplayStyle = DataGridViewComboBoxDisplayStyle.Nothing;
            colums.HeaderText = "haha";
            this.dataGridView.Columns.Add(colums);
随便写了一个.主要是colums.DataSource = dt;以及colums.Items.Add()来做数据源 用 colums.DisplayMember来显示
和colums.ValueMember 做值.