C# DataGridView

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   private void InitDataGridView()        {            // Create an unbound DataGridView by declaring a column count.            dataGridView1.ColumnCount = 3;            dataGridView1.ColumnHeadersVisible = true;            dataGridView1.AllowUserToAddRows = false;            dataGridView1.AllowUserToDeleteRows = false;            dataGridView1.AllowUserToOrderColumns = false;                  dataGridView1.MultiSelect = false;            dataGridView1.SelectionMode = DataGridViewSelectionMode.FullRowSelect;            dataGridView1.ReadOnly = true;            // Set the column header style.            DataGridViewCellStyle columnHeaderStyle = new DataGridViewCellStyle();            columnHeaderStyle.BackColor = Color.Beige;            columnHeaderStyle.Font = new Font("Verdana", 10, FontStyle.Regular);            dataGridView1.ColumnHeadersDefaultCellStyle = columnHeaderStyle;            // Set the column header names.            dataGridView1.Columns[0].Name = "C1";            dataGridView1.Columns[1].Name = "C2";            dataGridView1.Columns[2].Name = "C3";                          }        private void AddDataGridViewData()        {            for (int i = 0; i < 3; i++)            {                int index = this.dataGridView1.Rows.Add();                this.dataGridView1.Rows[index].Cells[0].Value = i.ToString() + "1";                this.dataGridView1.Rows[index].Cells[1].Value = i.ToString() + "2";                this.dataGridView1.Rows[index].Cells[2].Value = i.ToString() + "3";            }                   }        private string GetSelectedValue()        {            int index= dataGridView1.CurrentRow.Index;            return dataGridView1.Rows[index].Cells["C2"].Value.ToString();                               }        //右鍵顯示菜單        private void dataGridView1_CellMouseDown(object sender, DataGridViewCellMouseEventArgs e)        {            if (e.Button == MouseButtons.Right)            {                if (e.RowIndex >= 0)                {                    //若行已是選中狀態就不再進行設定                    if (dataGridView1.Rows[e.RowIndex].Selected == false)                    {                        dataGridView1.ClearSelection();                        dataGridView1.Rows[e.RowIndex].Selected = true;                    }                    //只選中一行時設定作用儲存格                    if (dataGridView1.SelectedRows.Count == 1)                    {                        dataGridView1.CurrentCell = dataGridView1.Rows[e.RowIndex].Cells[e.ColumnIndex];                    }                    //彈出操作菜單                    contextMenuStrip1.Show(MousePosition.X, MousePosition.Y);                }            }        }

 

 //清除DataGridView資料        private void DataGridViewClear()        {                        for (int i = 0; i < dataGridView1.RowCount; i++)            {                dataGridView1.Rows.Remove(dataGridView1.Rows[i]);                i--;            }        }

 

C# DataGridView