C# DataGirdView添加可弹框列

1.设置列

DgvTools.InitDgvTextBoxDropDownColumn(this.dgProLine, DataGridViewContentAlignment.MiddleCenter, "No", "No", "No", "", 15, false, true, true, SystemColors.Info, true, ref ColumnState);

2.定义列弹框方法
DataGridViewTextBoxDropDownColumn DrColumn1 = this.dgProLine.Columns["No"] as DataGridViewTextBoxDropDownColumn;
            DrColumn1.ButtonCustomClick += new EventHandler<EventArgs>(DrColumn1_ButtonCustomClick);

3.列弹框实现

#region 选择生产线
        /// <summary>
        /// 选择生产线
        /// </summary>
        void DrColumn1_ButtonCustomClick(object sender, EventArgs e)
        {
            FrmProLines frm1 = new FrmProLines(true, "");
            frm1.EventShowRow += new FrmProLines.GetDgRow(SelectProLines);
            frm1.ShowDialog();
        }

        void SelectProLines(DataGridViewSelectedRowCollection rows)
        {
            try
            {
                //为当前行赋值
                this.dgProLine.CurrentRow.Cells["_AutoID"].Value = rows[0].Cells["_AutoID"].Value;
                this.dgProLine.CurrentRow.Cells["No"].Value = rows[0].Cells["No"].Value;
                this.dgProLine.CurrentRow.Cells["Des"].Value = rows[0].Cells["Des"].Value;
                this.dgProLine.CurrentRow.Cells["Note"].Value = rows[0].Cells["Note"].Value;
                this.dgProLine.CurrentRow.Cells["UserCode"].Value = rows[0].Cells["UserCode"].Value;
                this.dgProLine.CurrentRow.Cells["create_time"].Value = rows[0].Cells["create_time"].Value;
                this.dgProLine.CurrentRow.Cells["update_time"].Value = rows[0].Cells["update_time"].Value;

                SendKeys.Send("{Right}");
                if (dgProLine.CurrentRow.Index == dgProLine.Rows.Count - 1)
                {
                    DataRow dr = dtProLine.NewRow();
                    //插入到指定索引的行的前面
                    dtProLine.Rows.Add(dr);
                    dtProLine.Rows.Remove(dr);
                }
            }
            catch (Exception ex)
            {
                Msg.InfoBox(ex.Message);
            }
        }
        #endregion

4.设置datagridview列可编辑

#region 设置datagridview列状态
        protected virtual void SetControlState(int nFlag)
        {
            bool flag = true;
            switch (nFlag)
            {
                case 0: //浏览状态
                    flag = true;
                    break;
                case 1: //编辑状态
                    flag = false;
                    break;
            }
            //datagridview列编辑设置 
            this.dgProLine.ReadOnly = nFlag == 1 ? false : true;
            //设置列为默认的ReadOnly属性。 
            foreach (DataGridViewColumn dgvCol in this.dgProLine.Columns)
            {
                dgvCol.ReadOnly = nFlag == 1 ? (bool)this.ColumnState[dgvCol.Name] : true;
            }
            //可添加列 
            this.dgProLine.AllowUserToAddRows = nFlag == 1 ? true : false;
            //this.dgDetails.au
            //根据编辑状态设置列 
            dgProLine.Columns["NO"].ReadOnly = nFlag == 1 ? false : true;
        }
        #endregion

 注意：如果还是无法弹出筛选框，则在构造函数中添加下面的语句：

//还可能无法弹出筛选框？
this.dgvDetails.AutoGenerateColumns = false;