Comments on: Hiding a Row in ASP.NET

By: Naeem

Naeem — Fri, 17 Jun 2011 12:00:35 +0000

its very helpful thanks!

By: Ankit Kumar Chauhan

Ankit Kumar Chauhan — Fri, 17 Jun 2011 11:34:44 +0000

thankyou sir

By: Eric

Eric — Thu, 10 Feb 2011 17:10:58 +0000

Mike, thank you for that, tbody is actually a much cleaner solution for any rows beyond one or two.

Again, thank you very much!

By: Mike

Mike — Mon, 12 Jul 2010 18:24:02 +0000

Thanks for this information Scott.

For anyone interested, you can also achieve the same for multiple TR tags by adding a TBODY tag to wrap the rows, and then giving it an ID and runat=server attribute.

You can have as many TBODY’s in a table as you like, so you can use them just like asp:PANEL tags.

By: stefan

stefan — Thu, 11 Feb 2010 07:23:24 +0000

Brilliant idea! Thanks for sharing!!

By: mako

mako — Thu, 14 Jan 2010 20:13:54 +0000

Thanks a lot!

Like another poster mentioned i also forgot the runat=server part.

By: http://

http:// — Thu, 02 Feb 2006 14:26:00 +0000

I just happened upon this thread today and the solution appears to be exactly what I need to implement role-based access for specified db fields on a FormView (admittedly a quick & dirty version).

However, upon implementation & execution the page threw and exception:

System.NullReferenceException was unhandled by user code
Message="Object reference not set to an instance of an object."
Source="App_Web_-yigdorv"
StackTrace:
at EditProperty.Page_Load(Object sender, EventArgs e) in c:\Inetpub\wwwroot\trump\EditProperty.aspx.cs:line 31
...

My code in aspx page:

My code in aspx.cs page:

public partial class EditProperty : System.Web.UI.Page
{
protected HtmlTableRow trMP_Latitude;

protected void Page_Load(object sender, EventArgs e)
{
if (!Page.IsPostBack) { // first-time logic
trMP_Latitude.Visible = false; <=== THROWS EXCEPTION
...

No doubt the problem stems from the fact that the table is contained within a FormView inside a ContentPageHolder which, in turn, is contained within the master page. I will mess around with the FindControl() method until I figure out the necessary syntax (hopefully ASP.Net 3.0 will enable a cleaner syntax for finding a buried control).

Troy

By: http://

http:// — Fri, 07 Oct 2005 14:03:00 +0000

Great! Thanks very much

Also thanks to “Skip” for mentioning “run at server”

By: http://

http:// — Tue, 27 Sep 2005 19:52:00 +0000

One clarification...

"The reason this has gone unnoticed by many developers is that they are developing for Internet Explorer exclusively, which will forgive some of these mistakes"

Although IE is very forgiving, and that often makes this statement true, for Panels, the Framework generates DIVS in IE vs TABLES in other browsers.

By: http://

http:// — Tue, 05 Jul 2005 21:22:00 +0000

I’d already figured out that assigning an ID to the table row would allow me to hide or show the row. Sadly forgot the runat=server bit. Your post saved my hair. Cheers,