单击 btnDell 时清除最后一行单元格数据

Question

我有一个动态行表（显示/隐藏）。当我点击 btnDell 时，我的最后一个可见行被隐藏了，但它们的数据在那里..

这是我第一行的内容：

//Row1 Cells Controls
        Label rowNo = new Label();
        rowNo.Text = "1-";
        TextBox txt11 = new TextBox();
        txt11.Height = 19;
        TextBox txt12 = new TextBox();
        txt12.Height = 19;
        TextBox txt13 = new TextBox();
        txt13.Height = 19;
        DateTimeControl dt11 = new DateTimeControl();
        dt11.DateOnly = true;
        DateTimeControl dt12 = new DateTimeControl();
        dt12.DateOnly = true;

        tRow1 = new TableRow();
        tRow1.Visible = true;

        TableCell tCellZero = new TableCell();
        tCellZero.Controls.Add(rowNo);
        tRow1.Cells.Add(tCellZero);

        TableCell tCellOne = new TableCell();
        tCellOne.Controls.Add(txt11);
        tRow1.Cells.Add(tCellOne);

        TableCell tCellTwo = new TableCell();
        tCellTwo.Controls.Add(dt11);
        tRow1.Cells.Add(tCellTwo);

        TableCell tCellThree = new TableCell();
        tCellThree.Controls.Add(dt12);
        tRow1.Cells.Add(tCellThree);

        TableCell tCellFour = new TableCell();
        tCellFour.Controls.Add(txt12);
        tRow1.Cells.Add(tCellFour);

        TableCell tCellFive = new TableCell();
        tCellFive.Controls.Add(txt13);
        tRow1.Cells.Add(tCellFive);

        myTbl.Rows.Add(tRow1);

这是我在表格中隐藏最后一个可见行的代码。

    void btnDell_Click(object sender, EventArgs e)
    {
        if (myTbl.Rows.Cast<TableRow>().Count(row => row.Visible) > 2)
        {
            myTbl.Rows.Cast<TableRow>().Last(row => row.Visible).Visible = false;
        }
    }

如何访问单元格 TextBox.Text 和 DateTimeControls.SelectedDate ？

myTbl.Rows.Cast<TableRow>().Last(row => row.Visible).Cells[1].Text = string.Empty;

Answer 1

这个呢？

((DateTimeControl)myTbl.Rows.Cast<TableRow>().Last(row => row.Visible).Cells[1].Controls[0]).ClearSelection();

Answer 2

这个怎么样？在你的 If 语句中......

            var tableRow = Table1.Rows.Cast<TableRow>().Last(row => row.Visible);

            foreach (TableCell item in tableRow.Cells)
            {
                foreach (Control cntrl in item.Controls)
                {
                    if (cntrl.GetType() == typeof(DateTimeControl)) 
                    {
                        ((DateTimeControl)cntrl).ClearSelection();
                    }
                    if (cntrl.GetType() == typeof(TextBox)) 
                    {
                        ((TextBox)cntrl).Text = string.Empty;
                    }
                }
            }