//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";

}