I have to be missing something easy here.

I place a new treeview control on a webform.
I hard code some nodes in the designer.
I set the itemclick event with some dummy code so that I can hit a breakpoint.

I run the code and the event is not raised when clicking on the tree.

I really like the ease of use of your components and am ready to purchase them except for this issue.

Regards,
-Thomas

Ok that worked fine.

When I add the treeview to my target application the itemclick does not fire. RaisesServerEvent is set to true. The nodes are dynamically populated.

The following code is executed when populate on demand is fired.
foreach (VSSItem vi in vssItems)
{
node = null;
node = new EO.Web.TreeNode(vi.Name);
node.Text = vi.Name;
node.Value = filepath + "/" + vi.Name;

if (vi.Type == 0) // zero is project level node. Enable populate on demand.
{
node.PopulateOnDemand = true;
}
e.TreeNode.ChildNodes.Add(node);
}

Here is the markup:
<eo:TreeView ID="TreeviewProjects"
runat="server"
Height="250px"
Width="250px"
ControlSkinID="MSDN"
OnItemClick="TreeviewProjects_ItemClick"
OnItemPopulate="TreeviewProjects_ItemPopulate"
RaisesServerEvent="True">
</eo:TreeView>

Thanks,
Thomas

Hi,

Which version do you use? When you want dynamic loading to work, you want to make sure that all nodes are there when you post back. For example, if you have populated on demand 100 nodes, then you want to one of them to raises server event, you need to repopulate these 100 nodes on the server side when the page postback, otherwise the TreeView won't be able to find a matching node and it won't fire the event.

Our latest version automatically calls ItemPopulate event when page postback if user has dynamically populated nodes, our early version does not. However, you still want to be very careful when you use this feature. The reason that you use populate on demand is because you have a large TreeView, so if you let it rebuild the TreeView upon post back then it's very counter productive and put huge performance burden on your site.

As such generally you should not enable server event on a TreeView that also has populate on demand enabled. Usually populate on demand is strictly used for navigation purpose.

Thanks

I downloaded the eval this morning the file indicates version 4.0.34.2 (EO.Web.dll) Is this the latest version?.

I do have a very large treeview. It gives access to old Visual Source Safe files. (I'm using the treeview to navigate the VSS project structure. Its really just a file browser) Some of the projects are quite large. This is an intranet site used by 100 users max. The populate on demand feature works extremely well. There is no noticeable lag even on a large tree. I just need to get the on click event figured out.

-Thomas

I found where the break down was occurring. Everything works as intended. Thank you for the help. You have a new customer.

-Thomas