Question

我想请你帮忙解决我的问题。我有一个DGV，其中每列都使用List＆lt;＆gt;中的DataPropertyName设置。当我装载它时，DGV充满了Ids的班次。它工作得很好，但是我想把这个（带有int的单元格）更改为ComboBox，其中displaymember将是shift名称和值成员这个班次ID。

有人有任何解决方案或者我应该重拍吗？

非常感谢

这是我的代码

 public void FillWithData(int month, int year, int centerID)
    {
        IScheduleRecord record = new ScheduleRecordDAO();

        List<Shift> shifts = new ShiftDAO().GetShiftsByCenterId(center);

        dataGridView1.Columns[1].DataPropertyName = "Day1";
        dataGridView1.Columns[2].DataPropertyName = "Day2";
        dataGridView1.Columns[3].DataPropertyName = "Day3";
        dataGridView1.Columns[4].DataPropertyName = "Day4";
        dataGridView1.Columns[5].DataPropertyName = "Day5";
        dataGridView1.Columns[6].DataPropertyName = "Day6";
        dataGridView1.Columns[7].DataPropertyName = "Day7";
        dataGridView1.Columns[8].DataPropertyName = "Day8";
        dataGridView1.Columns[9].DataPropertyName = "Day9";
        dataGridView1.Columns[10].DataPropertyName = "Day10";
        dataGridView1.Columns[11].DataPropertyName = "Day11";
        dataGridView1.Columns[12].DataPropertyName = "Day12";
        dataGridView1.Columns[13].DataPropertyName = "Day13";
        dataGridView1.Columns[14].DataPropertyName = "Day14";
        dataGridView1.Columns[15].DataPropertyName = "Day15";
        dataGridView1.Columns[16].DataPropertyName = "Day16";
        dataGridView1.Columns[17].DataPropertyName = "Day17";
        dataGridView1.Columns[18].DataPropertyName = "Day18";
        dataGridView1.Columns[19].DataPropertyName = "Day19";
        dataGridView1.Columns[20].DataPropertyName = "Day20";
        dataGridView1.Columns[21].DataPropertyName = "Day21";
        dataGridView1.Columns[22].DataPropertyName = "Day22";
        dataGridView1.Columns[23].DataPropertyName = "Day23";
        dataGridView1.Columns[24].DataPropertyName = "Day24";
        dataGridView1.Columns[25].DataPropertyName = "Day25";
        dataGridView1.Columns[26].DataPropertyName = "Day26";
        dataGridView1.Columns[27].DataPropertyName = "Day27";
        dataGridView1.Columns[28].DataPropertyName = "Day28";

        if (CountColumns(month, year) == 30) {
            dataGridView1.Columns[29].DataPropertyName = "Day29";
            dataGridView1.Columns[30].DataPropertyName = "Day30";
        }
        if (CountColumns(month, year) == 31) {
            dataGridView1.Columns[29].DataPropertyName = "Day29";
            dataGridView1.Columns[30].DataPropertyName = "Day30";
            dataGridView1.Columns[31].DataPropertyName = "Day31";
        }

        dataGridView1.DataSource = record.GetScheduleRecordsByMonthYearCenter(month, year, center);
        this.dataGridView1.RowsDefaultCellStyle.BackColor = Color.Beige;
        this.dataGridView1.AlternatingRowsDefaultCellStyle.BackColor =
            Color.LightGray;
        this.dataGridView1.Columns["Year"].Visible = false;
        this.dataGridView1.Columns["Month"].Visible = false;
        this.dataGridView1.Columns["CenterID"].Visible = false;
        this.dataGridView1.Columns["Id"].Visible = false;
        this.dataGridView1.Columns["EmployeeID"].Visible = false;
        if (CountColumns(month, year) == 28)
        {
            this.dataGridView1.Columns["Day29"].Visible = false;
            this.dataGridView1.Columns["Day30"].Visible = false;
            this.dataGridView1.Columns["Day31"].Visible = false;
        }
        if (CountColumns(month, year) == 30)
        {
            this.dataGridView1.Columns["Day31"].Visible = false;
        }

Answer 1

我在我的一个应用程序中使用辅助方法来添加DataGridViewComboBoxColumn控件。希望它可以帮助您到达您需要的地方：

    private void AddBoundDataGridViewComboBoxColumn(
        DataGridView dgv,
        string dataPropertyName,
        string displayMember,
        string valueMember,
        object dataSource,
        string headerText,
        string toolTipText = "")
    {
        DataGridViewComboBoxColumn comboBoxColumn = new DataGridViewComboBoxColumn();
        int columnIndex;
        if (ts.TraceVerbose) Trace.WriteLine("entering");
        try
        {
            #region Try
            comboBoxColumn.DataPropertyName = dataPropertyName;
            comboBoxColumn.Name = dataPropertyName;
            comboBoxColumn.DisplayMember = displayMember;
            comboBoxColumn.ValueMember = valueMember;
            comboBoxColumn.DataSource = dataSource;
            columnIndex = dgv.Columns.Add(comboBoxColumn);
            dgv.Columns[columnIndex].AutoSizeMode = DataGridViewAutoSizeColumnMode.AllCells;
            dgv.Columns[columnIndex].HeaderText = headerText;
            dgv.Columns[columnIndex].ToolTipText = toolTipText;
            if (ts.TraceVerbose) Trace.WriteLine("Column added to " + dgv.Name + ": " + dataPropertyName + " (Tool tip: " + toolTipText + ")");
            #endregion Try
        }
        catch (Exception)
        {
            throw;
        }
        finally
        {
            if (ts.TraceVerbose) Trace.WriteLine("exiting");
        }
    }

然后我使用通用事件处理程序进行单元格内容点击：

        private void dgvSCXTableView_CellContentClick(object sender, DataGridViewCellEventArgs e)
    {
        var senderGrid = (DataGridView)sender;

        if (senderGrid.Columns[e.ColumnIndex] is DataGridViewComboBoxColumn && e.RowIndex >= 0)
        {
        }
    }

希望它对你有所帮助。如果您在以下行中发布Shift的实现可能有所帮助：

List<Shift> shifts = new ShiftDAO().GetShiftsByCenterId(center);

DataGridView中的C＃ComboBox与valuemember和displaymember

1 个答案: