Telerik.Web.UI.RadTreeView._preInitialize fails

[tomas]

Hello.

Please, i need a help.

I am adding TreeView dynamically not directly to form.Controls collection but to another my nested control.

Is it possible?

I am getting javascript error in _preInitialize method...

Thank you very much.

	using System;
	using System.Data;
	using System.Configuration;
	using System.Linq;
	using System.Web;
	using System.Web.Security;
	using System.Web.UI;
	using System.Web.UI.HtmlControls;
	using System.Web.UI.WebControls;
	using System.Web.UI.WebControls.WebParts;
	using System.Xml.Linq;
	using System.Xml;
	using Telerik.Web.UI;
	using System.Collections.Generic;
	namespace CB.LayerPresentation.Controls.Input
	{
	public class FluTelTreeview : FluTelBase
	{
	protected DataTable dtData;
	protected RadTreeView treeView;
	public FluTelTreeview(ScriptManager sm, XmlDocument xdProperties): base(sm,xdProperties)
	{
	this.treeView = new RadTreeView();
	this.treeView.Skin = "Office2007";
	this.Controls.Add(this.treeView);
	// all control properties are set up during this method with help of reflection
	if (this.xdProperties != null)
	{
	this.SetupProperties(this.treeView, null, xdProperties.DocumentElement);
	this.SetupProperties(this, "OuterControl", xdProperties.DocumentElement);
	}
	}
	public void SetData(DataTable dtData)
	{
	this.dtData = dtData;
	this.treeView.DataSource = dtData;
	this.treeView.DataBind();
	}
	protected override void OnPreRender(EventArgs e)
	{
	if (this.sm != null)
	{
	if (!this.DesignMode)
	sm.RegisterScriptControl(this);
	}
	base.OnPreRender(e);
	}
	protected override void Render(HtmlTextWriter writer)
	{
	//base.Render(writer);
	this.SetInputNameAndControlID();
	if (this.isUpdateRestricted)
	{
	writer.WriteLine("<span id=" + this.inputName + "LikeInput>" + this.Value + "</span>");
	}
	else
	{
	if (!this.DesignMode)
	sm.RegisterScriptDescriptors(this);
	this.treeView.ID = this.ID + "TreeView";
	// nastavení hodnoty
	// začátek div
	writer.Write("<div id=" + this.ID + " ");
	//vnitřní control
	writer.WriteAttribute("innerControlId", this.treeView.ClientID);
	if (this.IsValueDefault)
	writer.WriteAttribute("defVal", this.Value);
	if (fr.Mandatory)
	writer.WriteAttribute("mandatory", fr.Mandatory.ToString());
	writer.WriteAttribute("isUpdateRestricted", (this.isUpdateRestricted ? "1" : "0"));
	writer.WriteLine(" >");
	// tree view is rendered
	this.RenderChildren(writer);
	//konec div
	writer.WriteLine("</div>");
	}
	//hidden with current value
	this.RenderHiddenValue(writer,"");
	// hidden with old value
	if (!this.isUpdateRestricted)
	this.RenderOldValueHidden(writer);
	}
	protected override IEnumerable<ScriptReference> GetScriptReferences()
	{
	ScriptReference reference = new ScriptReference();
	reference.Path = ResolveClientUrl("scripts/FluTelTreeView.js");
	return new ScriptReference[] { reference };
	}
	protected override IEnumerable<ScriptDescriptor> GetScriptDescriptors()
	{
	ScriptControlDescriptor descriptor = new ScriptControlDescriptor("FluTel.TreeView", this.ID);
	return new ScriptDescriptor[] { descriptor };
	}
	}
	}

[tomas]

I have already solved this.

It is not possible to assign treeview id in Render method although it is possible do this in onPrerender method....

Tom