Hello,
Programmatically created controls need to be recreated on each postback. Each time your page is called, it recreates itself
from scratch based on the contents of aspx page and then applies viewstate to those controls. The controls (table rows and
cells) which were created during a previous postback no longer exist and so viewstate cannot be applied to them. What you
need to do is save the entire state of your table, in a Session variable for example, and then completely recreate the table
on each postback.
For an example, if you add one row data when editing property of table control in IDE. You could see this line of row always.
However, if you add the following code in Page_load,
if ( Page.IsPostBack )
{
TableRow tRow = new TableRow();
TableCell tCell1 = new TableCell();
tCell1.Text = "cell1";
tRow.Cells.Add(tCell1);
TableCell tCell2 = new TableCell();
tCell2.Text = "cell2";
tRow.Cells.Add(tCell2);
TableCell tCell3 = new TableCell();
tCell3.Text = "cell3";
tRow.Cells.Add(tCell3);
Table1.Rows.Add(tRow);
}
Each time, only one line of suce row appears.
For details, please refer to
http://msdn.microsoft.com/library/en-
us/vbcon/html/vbtskaddingcontrolstowebformspageprogrammatically.asp?frame=true for details.
Hope it helps.
Best regards,
Yanhong Huang
Microsoft Online Partner Support
Get Secure! -
www.microsoft.com/security
This posting is provided "AS IS" with no warranties, and confers no rights.
--------------------
!From: "g2" <
[email protected]>
!Subject: Dynamic Tables / Unable to clear content
!Date: Mon, 4 Aug 2003 23:13:39 -0400
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!I am adding rows dynamiclly to a table in the postback. In my second
!postback the contents of the table are not getting updated i.e. the contents
!are always from the first postback. Any ideas why this is happening?
!Thanks.
!
!
!
