DataGridView属性和事件

        //注册绑定事件
        private void dgvBidFile_EditingControlShowing(object sender, DataGridViewEditingControlShowingEventArgs e)
        {
            DataGridView dataGridView = (DataGridView)sender;
            int columnIndex = dataGridView.CurrentCell.ColumnIndex;
            string columnName = dataGridView.Columns[columnIndex].Name;  //获取某一列的名称
            if (columnName== "colId"||columnName=="colName"||columnName=="colAge")
            {
                e.Control.KeyPress += new KeyPressEventHandler(TextBoxDec_KeyPress);
            }

            if (dataGridView.CurrentCell.GetType().Name == "DataGridViewComboBoxCell")
            {
                bidFileId = Convert.ToInt32(dataGridView.CurrentRow.Cells[this.colBidFileId.Index].Value);
                ComboBox comboBox = (ComboBox)e.Control;
                comboBox.SelectedIndexChanged += new EventHandler(this.comboBox_SelectedIndexChanged);
            }
        }

        //只输入数字判定事件。该事件是手动添加的绑定事件
        private void TextBoxDec_KeyPress(object sender, KeyPressEventArgs e)
        {
            if (e.KeyChar !=  && !Char.IsDigit(e.KeyChar) && e.KeyChar != '.')
            {
                e.Handled = true;
            }
        }

        //下拉框更改事件，该事件是手动添加的绑定事件
        private void comboBox_SelectedIndexChanged(object sender, EventArgs e)
        {
             ComboBox comboBox = (ComboBox)sender;
             //接下来获取下来框中的内容...
             //comboBox.Text为当前选定的下拉框的内容
        }

       //普通文本框更改事件
       private void dgvBidFile_CellValueChanged(object sender, DataGridViewCellEventArgs e)
       {
            if (e.ColumnIndex == this.colRemark.Index)
            {
                   //colRemark为数据绑定列
                   //发生什么事...
            }
       }

 //默认值，添加新行时才会触发。dgv必须选中启用添加，并且是用户鼠标进入带*的新行才会触发
private void dgvBidFile_DefaultValuesNeeded(object sender, DataGridViewRowEventArgs e)
{
      e.Row.Cells["coId"].Value = ;
      e.Row.Cells["colName"].Value = "你好";
}