在表中的最后一行动态创建的文本框中附加一个按钮

Question

                Table tb = new Table();
                DynamicControlsHolder.Visible = true;
                DynamicControlsHolder.Controls.Add(tb);
                TableRow tr = new TableRow();
                TextBox txtcntrl = default(TextBox);
                TextBox txtcntrl1 = default(TextBox);
                Label lblcntrl = default(Label);
                TableCell tclbl = default(TableCell);
                TableCell tctxt = default(TableCell);
                TableCell tctxt1 = default(TableCell);
                txtcntrl = new TextBox();
                txtcntrl1 = new TextBox();
                lblcntrl = new Label();
                tclbl = new TableCell();
                tctxt = new TableCell();
                tctxt1 = new TableCell();

                lblcntrl.Text = "Item" + itemid;
                txtcntrl.ID = "txtDescription" + itemid;
                txtcntrl1.ID = "txtAmount" + itemid;

                txtcntrl.Text = rowdetail["itemAmount"].ToString();
                txtcntrl.Text = rowdetail["itemDescription"].ToString();
                tclbl.Controls.Add(lblcntrl);
                tctxt.Controls.Add(txtcntrl);
                tctxt1.Controls.Add(txtcntrl1);
                tr.Cells.Add(tclbl);
                tr.Cells.Add(tctxt);
                tr.Cells.Add(tctxt1);
                tb.Rows.Add(tr);
                tb.Enabled = false;
                itemid++;

上面是在服务器端创建2个文本框和标签的代码，append将行添加到表中。

我只需要在最后一行的2个文本框旁边显示一个按钮。如何在服务器端实现此目的

请adivce

Answer 1

在itemid ++之后;添加此条件

        if (itemid == tb.Rows.Count)
        {
            Response.Write("this is the last row");
        }

Answer 2

在button click event上，试试这个：

    void Button1_Click(Object sender,  EventArgs e){

 //To append a row :

        TableRow addedRow = new TableRow();
        tb.Rows.Add(addedRow);

 //To add one or more cells to the row:

        TableCell addedCell = new TableCell();
        addedRow .Cells.Add(addedCell);
    }

Answer 3

而不是

  foreach (DataRow rowdetail in customInvoiceDetail.Rows)

使用

  for (int i = 1; i <= customInvoiceDetail.Rows.count; i ++)
  {
    // var rowdetail = customInvoiceDetail.Rows[i];

这样你就可以在for循环结束时检查

  if(i == customInvoiceDetail.Rows.count)

 // u can add button here