Questions on UI for ASP.NET AJAX Forum

3 answers

201 views

Controls in JQuery Postbacks in MVC Views

Hello,

I postback MVC views using JQuery. I have a RadComboBox control within this MVC view that posts back, and replaces the UI, with JQuery code. The control works, but when I replace the content returned from JQuery, the RadComboBox stops working. I'm assuming I need to call $create to make this work... any advice on that?

Thanks.

UI for ASP.NET AJAX in ASP.NET MVC

answered on 04 Dec 2009

1 answer

179 views

ArgumentNullException when adding RadDock in Page_Init

Hi,

I'm getting the folllowing error when adding a RadDock control to a RadDockZone in Page_Init.

What I'm doing:

Default.aspx
...uses LoadControl() to load -> Layout.ascx (contains a RadDockLayout with a RadDockZone)
......Layout.ascx then dynamically creates and adds a RadDock to the zone

The error only happens if I load the dock in Page_Init. If I load in Page_Load it works.

The markup from Default.aspx:

    
            <%@ Page Language="C#" AutoEventWireup="true"  CodeFile="Default.aspx.cs" Inherits="_Default" %> 
        
            <%@ Register assembly="Telerik.Web.UI" namespace="Telerik.Web.UI" tagprefix="telerik" %> 
        
            <!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">  
        
                <title></title>  
        
            </head> 
        
            <body> 
        
                <form id="form1" runat="server">  
        
                <div> 
        
                    <telerik:RadScriptManager ID="RadScriptManager1" Runat="server">  
        
                    </telerik:RadScriptManager> 
        
                    <asp:PlaceHolder ID="PlaceHolder1" runat="server"></asp:PlaceHolder> 
        
                </div> 
        
                </form> 
        
            </body> 
        
            </html>

The code behind from Default.aspx:

    
            using System;  
        
            using System.Web.UI;  
        
            public partial class _Default : System.Web.UI.Page  
        
            {  
        
                protected void Page_Init(object sender, EventArgs e)  
        
                {  
        
                    Control layout = LoadControl("Layout.ascx");  
        
                    if (layout != null)  
        
                    {  
        
                        PlaceHolder1.Controls.Add(layout);  
        
                    }  
        
                }  
        
            }

The markup from Default.aspx:

    
            <%@ Control Language="C#" AutoEventWireup="true" CodeFile="Layout.ascx.cs" Inherits="Layout" %> 
        
            <%@ Register assembly="Telerik.Web.UI" namespace="Telerik.Web.UI" tagprefix="telerik" %> 
        
            <telerik:RadDockLayout ID="DockLayout1" runat="server">  
        
                <table border="1" cellpadding="0" width="800">  
        
                    <tr> 
        
                        <td width="100%" valign="top">  
        
                            <telerik:RadDockZone ID="DockZone1" runat="server" BorderStyle="None">  
        
                            </telerik:RadDockZone> 
        
                        </td> 
        
                    </tr> 
        
                </table> 
        
            </telerik:RadDockLayout>

The code behind from Layout.ascx:

    
            using System;  
        
            using System.Web.UI;  
        
            using Telerik.Web.UI;  
        
            public partial class Layout : System.Web.UI.UserControl  
        
            {  
        
                protected void Page_Init(object sender, EventArgs e)  
        
                {  
        
                    //this causes error  
        
                    RadDock dock = new RadDock();  
        
                    RadDockZone zone = FindControl("DockZone1") as RadDockZone;  
        
                    zone.Controls.Add(dock);  
        
                }  
        
                protected void Page_Load(object sender, EventArgs e)  
        
                {  
        
                    //this works  
        
                    //RadDock dock = new RadDock();  
        
                    //RadDockZone zone = FindControl("DockZone1") as RadDockZone;  
        
                    //zone.Controls.Add(dock);  
        
                }  
        
            }

The error I'm getting is:

Value cannot be null.
Parameter name: key

Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details: System.ArgumentNullException: Value cannot be null.
Parameter name: key

Source Error:

An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.

Stack Trace:


            [ArgumentNullException: Value cannot be null.
Parameter name: key]
   System.ThrowHelper.ThrowArgumentNullException(ExceptionArgument argument) +44
   System.Collections.Generic.Dictionary`2.FindEntry(TKey key) +7455633
   System.Collections.Generic.Dictionary`2.ContainsKey(TKey key) +4
   Telerik.Web.UI.RadDockLayout.SetRegisteredDockParents(Dictionary`2 parents, Dictionary`2 indices) +317
   Telerik.Web.UI.RadDockLayout.Page_InitComplete(Object sender, EventArgs e) +169
   System.EventHandler.Invoke(Object sender, EventArgs e) +0
   System.Web.UI.Page.OnInitComplete(EventArgs e) +8698006
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +467

The problem seems to be internal to the RadDockLaout control. Any idea what is happening?

I'll attach the actual files to a support ticket so you guys can try running them.

Thanks.

-Al

Dock

answered on 04 Dec 2009

3 answers

87 views

client-side notification of node.expand()

I use a radTree whose nodes have ExpandMode set to ServerSideCallBack.

At the client-side, I am able to fire _node.expand(); method to actually expand a given treeNode, but I am struggling to find a way for the notification of when the expand operation gets completed. That will help me in accessing the child nodes of a mode in Javascript.

Please let me know if there is any way.

Thanks,

Saurabh.

TreeView

answered on 04 Dec 2009

0 answers

101 views

vertical scroll bar causes found item to reload

2009.3.1103.35 w/IE8

    
            <RadComboBox ID="cbo" runat="server" 
        
                  Filter="Contains" MarkFirstMatch="true" AllowCustomText="false" NoWrap="true"> 
        
            </RadComboBox>

The list has about 500 items and there is NO lazy load involved.
The problem is that after I searched for a name (say 1 found), then I used the scroll bar to scroll down, it seems to go into search mode again and repopulates the display with the same name that was found. (while sort of locking up the IE)

It seems I am hitting the same bug reported here:

http://www.telerik.com/community/forums/aspnet-ajax/combobox/fix-items-loaded-on-demand-can-be-added-multiple-times-on-scroll-q3-2009-issue.aspx

Confirmed this issue is fixed in 2009.3.1201.35

ComboBox

asked on 04 Dec 2009

3 answers

247 views

[Solved] RadCaptcha - handlers & httpHandlers related to IIS 7.0 pipeline

Hello,

I'm using IIS 7.0, I would like to ask the difference between the integrated mode pipeline and classic mode pipeline reated to the handlers for RadCaptcha (classic mode works without adding any handlers for RadCaptcha) in web.config? Any performance issue related? Or both just do the same thing?

Here's the handler that I should add in web.config for integrated mode:
<handlers>
<add name="Telerik_Web_UI_WebResource_axd" verb="*" preCondition="integratedMode" path="Telerik.Web.UI.WebResource.axd" type="Telerik.Web.UI.CaptchaImageHandler" />
</handlers>

And what the difference between the type's values below:
<add path="Telerik.Web.UI.WebResource.axd" type="Telerik.Web.UI.CaptchaImageHandler" verb="*" validate="false" />

<

add path="Telerik.Web.UI.WebResource.axd" verb="*" type="Telerik.Web.UI.WebResource, Telerik.Web.UI" validate="false"/>

Any answer or help for this would be appreciated.

Regards,

Omar Suria

Captcha

answered on 04 Dec 2009

12 answers

524 views

[Solved] AdvancedForm Modal AdvancedEditTemplate

I can not get an AdvancedEditTemplate to open when modal="true" is set. Is there a limitation with this?

Scheduler

answered on 04 Dec 2009

2 answers

87 views

Assistance with using the thumbnail feature

I have installed / deployed the RAD Editor Lite to my sharepoint site and enabled it as a feature on a sub-site (I did this as the site collection administrator). The standard toolbar is now replaced with the Telerik version. All good so far!

I have been able to upload and add images to both normal list items and wiki pages (I created a picture library for the list item to populate). Having uploaded an image and added it to a page/list item, I am now trying to create a thumbnail.

Firstly, is the thumbnail just a smaller version of the image, or is it a thumbnail that when clicked pops up the larger version of the image?

Secondly, when I right-click an image and choose "set image properties", the "Create Thumbnail" tab is not available (it's greyed out). Am I doing something wrong?

Help on this feature would be most appreciated - perhaps I have missed the point, but I can't find any detailed help :(

Thanks,
Alex

WebParts for SharePoint

answered on 04 Dec 2009

1 answer

147 views

Trouble with node.scrollIntoView()

Hey Telerik!

The Version of the Telerik.Web.UI.dll I use is: 2008.03.1314.20

I am selecting a TreeNode like so:

    
            function OpenTreeToSpecificNodeRecursion() {  
        
                        var tree = $find('<%= rpbOperational.Items[0].Items[0].FindControl("rtGeographic").ClientID %>');  
        
                        if (aIds2Node.length == 0) {  
        
                            return;  
        
                        }  
        
                        if (tree.findNodeByValue(aIds2Node[0]) != null) {  
        
                            nodeTree = tree.findNodeByValue(aIds2Node.shift());  
        
                            if (aIds2Node.length == 0) {  
        
                                tree.unselectAllNodes();  
        
                                nodeTree.select();  
        
                                window.setTimeout(function() { nodeTree.scrollIntoView(); }, 400);  
        
                                return;  
        
                            }  
        
                            nodeTree.expand();  
        
                        }  
        
                        window.setTimeout("OpenTreeToSpecificNodeRecursion()", 10);  
        
                    }

If I put an alert(nodeTree.scrollIntoView()) in front of the functioncall the browser tells me "undefined" meaning the function is not defined. Any clue why this should happen?

I realize the tree scrolls and selects the node at the same time, but it should be able to utilize the scrollIntoView() function as this method is called on the Timeout and therefore later?

Thanks for any advice on this. Sincerely, Peter.

TreeView

answered on 04 Dec 2009

2 answers

94 views

Two DatePicker in the same edit form

Hello

I use RadGrid with

<

telerik:GridDateTimeColumn DataField="DT_REPORT"

HeaderText="Data Report" PickerType="DatePicker"

DataFormatString="{0:d}" EmptyDataText="30/09/2009" >

</telerik:GridDateTimeColumn>

<

telerik:GridDateTimeColumn DataField="DT_INIZIO"

HeaderText="Data Inizio" PickerType="DatePicker" DataFormatString="{0:d}">

</telerik:GridDateTimeColumn>

The issue is when I'm in edit mode, after pressing the first GridDateTimeColumn , the second one became in block state (calendar menu does't apper)

Can you explain this for me ?

There is also one of yours example and there is the same problem.

Is that a bug?

Thanks,
Silvia

Grid

answered on 04 Dec 2009

4 answers

122 views

Second GridDateTimeColumn blocked

Hello

I use RadGrid with

<telerik:GridDateTimeColumn DataField="DateFrom" HeaderText="d_from" PickerType="DatePicker" UniqueName="d_from" DataFormatString="{0:MM/dd/yyyy}">
</telerik:GridDateTimeColumn>

<telerik:GridDateTimeColumn DataField="DateTo" HeaderText="d_to" PickerType="DatePicker" UniqueName="d_to" DataFormatString="{0:MM/dd/yyyy}">
</telerik:GridDateTimeColumn>

The issue is when I'm in edit mode, after pressing the first GridDateTimeColumn , the second one became in block state (calendar menu does't apper)

Can you explain this for me ?

Grid

answered on 04 Dec 2009

Value cannot be null. Parameter name: key

Value cannot be null.
Parameter name: key