Controls disappear when i wont read it

[Michał]

Hello.
I have a wery big problem with Telerik.TreeView.

I put the my Control to the tree view :

Telerik.Web.UI.RadTreeNode tnFormat = new Telerik.Web.UI.RadTreeNode("Format");
                        Future.Controls.tvDropDownNode ddNode1 = (Future.Controls.tvDropDownNode)LoadControl("..\\Controls\\Raporty\\tvDropDownNode.ascx");
                        ddNode1.ID = "Format";
                        ddNode1.Label1.Text = "Format";
                        ddNode1.DropDownList1.Items.Add("Standardowe");
                        ddNode1.DropDownList1.Items.Add("Liczbowe");
                       
                        tnFormat.Controls.Add(ddNode1);

                        rTv2.Nodes[indexGL].Nodes[0].Nodes.Add(tnFormat);

The control is show on the tree.

Wen I won`t read data from the my control te Control is disappear.

I red data like this :

Future.Controls.tvDropDownNode tn = (Future.Controls.tvDropDownNode)rTv2.Nodes[ii].Nodes[0].Nodes[0].Controls[0];

Please Help Me. Best Regards

[Atanas Korchev]

Hi Michał,

Controls added dynamically to a tree node need to be recreated after postback. Otherwise they will disappear as RadTreeView cannot recreate custom controls after postback. The same behavior is present with the built-in Panel and Placeholder controls.

Regards,
Albert
the Telerik team

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