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Editorial Team
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Asked: 2026-05-28T03:03:44+00:00

I’ve added TableRows via code-behind to a table. The rows render on the page,

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I’ve added TableRows via code-behind to a table. The rows render on the page, but on PostBack, the rows are no longer part of the collection. What is the trick to get these rows to persist so that I can use them on PostBack?

.ascx

<asp:Table id="OrderItemsTable" runat="server">

.ascx.cs

TableRow itemRow = new TableRow();

// Ticket Quantity
TableCell cell1 = new TableCell();
cell1.Attributes.Add("align", "center");
TextBox ticket1QuantityTextBox = new TextBox();
ticket1QuantityTextBox.Width = Unit.Pixel(30);
ticket1QuantityTextBox.MaxLength = 3;
ticket1QuantityTextBox.Attributes.Add("class", "OrderItemTicketQuantityTB");
ticket1QuantityTextBox.Text = item.Quantity.ToString();
cell1.Controls.Add(ticket1QuantityTextBox);
itemRow.Cells.Add(cell1);
...
OrderItemsTable.Rows.Add(itemRow);
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1 Answer

  1. Editorial Team

    Yes, you need to construct the control tree with your dynamic controls in Page_Int event so that ASP.NET can load the ViewState data later into Page Control tree (which you will need to access the values from TextBox)

    On a side not you should use Dynamic control only when the type of control is dynamic. Else you can achive the same using Repeater and listview

    Truely Understanding Dynamic Controls

    And here is the alternative to using Dynamic controls

    ASP.NET: Alternatives to Dynamic Controls – Part 1

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