Questions on UI for ASP.NET AJAX Forum

5 answers

563 views

Unable to get value of the property 'parentNode': object is null or undefined

Hi.
I'm getting this error using a RadToolTipManager, related to a control (RadioButton) inside a gridView.

When I click on RadioButton, I want the tooltip to appear. The tooltip refers to a UserControl.

I attach the code, if needed.

Thanks in advance.

Leo

RadToolTip.aspx

<%@ Page Title="" Language="C#" MasterPageFile="~/Site.Master" AutoEventWireup="true"

CodeBehind="radtooltip.aspx.cs" Inherits="WebApplication1.radtooltip" %>

<%@ Register Assembly="Telerik.Web.UI, Version=2010.2.713.40, Culture=neutral, PublicKeyToken=121fae78165ba3d4"

Namespace="Telerik.Web.UI" TagPrefix="telerik" %>

<asp:Content ID="Content1" ContentPlaceHolderID="HeadContent" runat="server">

</asp:Content>

<asp:Content ID="Content2" ContentPlaceHolderID="MainContent" runat="server">

<asp:ScriptManager ID="MasterScriptManager" runat="server" AsyncPostBackTimeout="300"

ScriptMode="Release">

</asp:ScriptManager>

<telerik:RadToolTipManager runat="server" ID="RadToolTipManager1" Position="Center"

RelativeTo="Element" Width="400px" Height="200px" Animation="Resize" Skin="Default"

OnAjaxUpdate="OnAjaxUpdate" ShowEvent="OnClick" EnableShadow="true" RenderInPageRoot="true"

ShowDelay="0">

</telerik:RadToolTipManager>

<asp:GridView ID="AttivitaGv" runat="server" AllowPaging="True" AllowSorting="True"

AutoGenerateColumns="False" OnRowDataBound="AttivitaGV_RowDataBound" Width="950px"

ViewStateMode="Enabled" CellPadding="3">

<columns>

<asp:TemplateField

ItemStyle-HorizontalAlign="Center" HeaderStyle-Width="60px">

<ItemTemplate>

<asp:RadioButton ID="rbPianificata" runat="server" GroupName="StatoAttivita" />

</ItemTemplate>

</asp:TemplateField>

<asp:TemplateField

ItemStyle-HorizontalAlign="Center" HeaderStyle-Width="60px">

<ItemTemplate>

<asp:RadioButton ID="rbEffettuata" runat="server" GroupName="StatoAttivita" />

</ItemTemplate>

</asp:TemplateField>

<asp:TemplateField

ItemStyle-HorizontalAlign="Center" HeaderStyle-Width="60px">

<ItemTemplate>

<asp:RadioButton ID="rbAnnullata" runat="server" GroupName="StatoAttivita" />

</ItemTemplate>

</asp:TemplateField>

<asp:TemplateField

ItemStyle-HorizontalAlign="Center" HeaderStyle-Width="60px">

<ItemTemplate>

<asp:RadioButton ID="rbRipianificata" runat="server" GroupName="StatoAttivita" />

</ItemTemplate>

</asp:TemplateField>

</columns>

<pagersettings mode="NumericFirstLast" />

<alternatingrowstyle cssclass="GridAlternating" />

<editrowstyle cssclass="GridEdit" />

<footerstyle cssclass="GridFooter" />

<headerstyle cssclass="GridHeader" />

<pagerstyle cssclass="GridPager" />

<rowstyle cssclass="GridRow" />

<selectedrowstyle cssclass="GridSelectedRow" />

<sortedascendingcellstyle cssclass="GridSortedCells" />

<sortedascendingheaderstyle cssclass="GridSortedHeader" />

<sorteddescendingcellstyle cssclass="GridSortedCells" />

<sorteddescendingheaderstyle cssclass="GridSortedHeader" />

</asp:GridView>

</asp:Content>

RadToolTip.aspx.cs

using System;

using System.Collections.Generic;

using System.Linq;

using System.Web;

using System.Web.UI;

using System.Web.UI.WebControls;

using Telerik.Web.UI;

namespace WebApplication1

{

public partial class radtooltip : System.Web.UI.Page

{

protected void Page_Load(object sender, EventArgs e)

{

List<Item> items = new List<Item>();

items.Add(new Item() { IdCliente = 1, Email = "Mark" });

items.Add(new Item() { IdCliente = 2, Email = "Jon" });

items.Add(new Item() { IdCliente = 3, Email = "Frank" });

items.Add(new Item() { IdCliente = 4, Email = "Mark" });

AttivitaGv.DataSource = items;

AttivitaGv.DataBind();

}

protected void AttivitaGV_RowDataBound(object sender, GridViewRowEventArgs e)

{

try

{

if (e.Row.RowType == DataControlRowType.DataRow)

{

this.RadToolTipManager1.TargetControls.Add(((RadioButton)e.Row.FindControl("rbPianificata")).ClientID,

"123", true);

}

catch (Exception ex)

{

throw new Exception(ex.Message, ex);

}

protected void OnAjaxUpdate(object sender, ToolTipUpdateEventArgs args)

{

this.UpdateToolTip(args.Value, args.UpdatePanel);

}

private void UpdateToolTip(string elementID, UpdatePanel panel)

{

Control ctrl = Page.LoadControl("AttivitaShort.ascx");

panel.ContentTemplateContainer.Controls.Add(ctrl);

AttivitaShort details = (AttivitaShort)ctrl;

details.ConfigureView(int.Parse(elementID));

}

public class Item

{

private int id;

public int IdCliente

{

get { return id; }

set { id = value; }

}

private string name;

public string Email

{

get { return name; }

set { name = value; }

}

AttivitaShort.ascx

<%@ Control Language="C#" AutoEventWireup="true" CodeBehind="AttivitaShort.ascx.cs" Inherits="WebApplication1.AttivitaShort" %>

<asp:Label ID="lbl1" runat="server"></asp:Label>

AttivitaShort.ascx.cs

using System;

using System.Collections.Generic;

using System.Linq;

using System.Web;

using System.Web.UI;

using System.Web.UI.WebControls;

namespace WebApplication1

{

public partial class AttivitaShort : System.Web.UI.UserControl

{

protected void Page_Load(object sender, EventArgs e)

{

}

public void ConfigureView(int IdCliente)

{

lbl1.Text = IdCliente.ToString();

}

ToolTip

answered on 22 Jul 2011

3 answers

113 views

Old Content Displayed on Load

Hi

We have a radwindow that is used to display a variety of reports

<telerik:RadWindowManager ID="RadWindowManager1" runat="server" VisibleStatusbar="false"

ReloadOnShow="true" RestrictionZoneID="MainArea">

<Windows>

<telerik:RadWindow ID="ReportWindow1" runat="server" KeepInScreenBounds="True" Modal="True"

Behaviors="Close,Maximize" Height="800px" Width="1000px"

ShowContentDuringLoad="True" Title="" EnableEmbeddedSkins="False" DestroyOnClose="False">

</telerik:RadWindow>

</Windows>

</telerik:RadWindowManager>

The issue is that if you close the window when it had one report open and reopen it with a new report, the previous title is displayed until the page loads.

This happens even if destroyonclose is set to true (for some reason it also ignores the sizeing when you open it the second time as well when destroyoclose is tue)

Why does it do this?

Cheers

Window

answered on 22 Jul 2011

6 answers

163 views

TimeSlotCreated event raised before and after page load event

Hi, during debugging with VS 2008 (Q2 2008 build 723) we remarked the following behavior:

On the first request to the page, we have the page load event called, and then a series of TimeSlotCreated event raised. Then if we cause a refresh of the scheduler using ajax (we click on the day or week button on the ajaxified scheduler) , we notice that the TimeSlotCreated event are fired before the page load event, and then again after the page load event, which caused us problems.

We noticed this after upgrading from the future build (708) to the release sp2 build (723). In the future build, the TimeSlotCreated event is always raised after the page load event.

We can fix our problem, but i'd like to know why the behavior is different (set of TimeSlotCreated raised twice in the latest build)

Thanks

Scheduler

answered on 22 Jul 2011

10 answers

532 views

Display Rad Window in Top Left corner of browsers

hi,

I have a button. On click of the button (server side) i am displaying a rad window(modal). What should i do to display the rad window in the 'top-left corner' of the browser instead of center.

Regards,
Shashank V

Window

answered on 22 Jul 2011

7 answers

2.3K+ views

Open RadWindow from code behind

I am using RadControl AJAX, I want to open a radwindow from code behind after some functions are handled, I try to use registerStartupScript as below:

string newWindowUrl = "Popups/Default1.aspx?WindowArgs=" + windowArgs;

string javaScript =

"<script type='text/javascript'>\n" +

"<!--\n" +

"var newwindow = window.radopen('" + newWindowUrl + "' +',' + 'RadWindow1');\n" +

"newwindow.focus();\n" +

"// -->\n" +

"</script>\n";

Page.ClientScript.RegisterStartupScript(t, "Email", javaScript);

and my aspx page is:

<telerik:RadWindowManager ID="RadWindowManager1" ShowContentDuringLoad="false" VisibleStatusbar="false" EnableViewState="true"

ReloadOnShow="true" runat="server" Skin="Default" EnableShadow="false" >

<Windows>

<telerik:RadWindow ID="RadWindow1" VisibleTitlebar="false" runat="server" Behaviors="Close, Move, Resize" AutoSize="true" NavigateUrl="~/Popups/Default1.aspx">

</telerik:RadWindow>

</Windows>

</telerik:RadWindowManager>

But it doesn't work. Any suggestions?

Thanks in advance!

Window

answered on 22 Jul 2011

1 answer

86 views

Scheduler Header is blank

Hello,
At run time, my Rascheduler displays a blank header (please see attachment) (on Windows 7). I'm using Telerik version 2011.2.712.40 with VisualStudio 2010. In the designer, the header is shown as expected.
Does anyone have this problem? Thanks.

Below is my simple aspx file.

<%

@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="Default" %>

<!

DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<

html xmlns="http://www.w3.org/1999/xhtml">

<

head runat="server">

<telerik:RadStyleSheetManager id="RadStyleSheetManager1" runat="server" />

</

head>

<

body>

<telerik:RadScriptManager ID="RadScriptManager1" runat="server">

<%

--Needed for JavaScript IntelliSense in VS2010--%>

<%

--For VS2008 replace RadScriptManager with ScriptManager--%>

<asp:ScriptReference Assembly="Telerik.Web.UI" Name="Telerik.Web.UI.Common.Core.js" />

<asp:ScriptReference Assembly="Telerik.Web.UI" Name="Telerik.Web.UI.Common.jQuery.js" />

<asp:ScriptReference Assembly="Telerik.Web.UI" Name="Telerik.Web.UI.Common.jQueryInclude.js" />

</Scripts>

</telerik:RadScriptManager>

//Put your JavaScript code here.

</script>

<telerik:RadAjaxManager ID="RadAjaxManager1" runat="server">

</telerik:RadAjaxManager>

<div>

<telerik:RadScheduler ID="MainScheduler" runat="server" Culture="English (Australia)"

DayEndTime="20:00:00" DayStartTime="09:00:00" FirstDayOfWeek="Monday" Height="515px"

MinutesPerRow="15" NumberOfHoveredRows="1" Skin="Vista" TimeLabelRowSpan="4"

OverflowBehavior="Expand" DataKeyField="ID" DataSubjectField="Subject" DataStartField="Start" DataEndField="End">

</telerik:RadScheduler>

</div>

</form>

</

body>

</

html>

Scheduler

answered on 22 Jul 2011

1 answer

228 views

Radwindow, can I go back to previous page?

Is there back/forward navigation like in a webbrowser. For example in the demo of Radwindow I can open up Google in a radwindow and do a search. If I click on a link how do I go back to the search results.

I could save the NavigateUrl property and reload that page when the user clicks a back button. I was just hoping it was built in.

Thanks,
Corey

General Discussions

answered on 22 Jul 2011

2 answers

521 views

Target _Blank

HI,

I have one radButton, when i click it i must open a link in a new blank page.
i see the property "target" on radButton but it does not work

Button

answered on 22 Jul 2011

2 answers

454 views

How to call a Javascript function from RadGrid Update Button

Hello,

I have a Radgrid in my web application . When I edit a row in the Radgrid, I want to call a javascript function (which will get the geocodes ) from the update button. I know we can add the attributes if the button is on the form. But that is not the case now.

I am accessing that update button in the itemDatabound event like this

Dim editItem As GridEditFormItem = DirectCast(e.Item, GridEditFormItem)
Dim updateButton As ImageButton = DirectCast(editItem.FindControl("UpdateButton"), ImageButton)

Appreciate the Help
Thanks

Grid

answered on 22 Jul 2011

1 answer

129 views

Treeview NodeClick event not firing

Hello All,

I have created a tree dynamically. CreateTreeView() is called in createchildcontorls and I am populating the tree in PreRender.
When I click on any tree node, the page just postbacks but NodeClick event is not firing. \

private void CreateTreeView()
{
treeViewPane.ID = "TreeViewPane";
treeViewPane.Width = new Unit("150px");
treeView = new RadTreeView();
treeView.Nodes.Clear();
treeView.NodeClick += new RadTreeViewEventHandler(treeView_NodeClick);
treeViewPane.Controls.Add(treeView);
}

Could someone please help me.

Regards
Rajeev

TreeView

answered on 22 Jul 2011