Questions on UI for ASP.NET AJAX Forum

2 answers

79 views

change backgroundimage

Hi,

How can I change the background image of RibbonBar?

Thanks in advance

RibbonBar

answered on 25 Dec 2012

1 answer

172 views

RadGrid NestedViewTemplate Generate - System.InvalidOperationException: Collection was modified; enumeration operation may not execute

Hello,

I'm encountering an exception using RadGrid's NestedViewTemplate feature.
If I set HierarchyDefaultExpanded="true" RadGrid, NestedViewTemplate is rendering correctly but all rows are expanded which is not very interesting. So i leave HierarchyDefaultExpanded to false so rows are initially collapsed when i expand a row following exception is raised

[System.InvalidOperationException: Collection was modified; enumeration operation may not execute.]

System.Web.UI.ControlCollectionEnumerator.MoveNext() +8672514

Telerik.Web.UI.RadFormDecorator.FindAndDecorateControls(Control parent) +639

Telerik.Web.UI.RadFormDecorator.FindAndDecorateControls(Control parent) +630

Telerik.Web.UI.RadFormDecorator.DecorateAspNetControls() +68

Telerik.Web.UI.RadFormDecorator.ControlPreRender() +834

Telerik.Web.UI.RadWebControl.OnPreRender(EventArgs e) +47

System.Web.UI.Control.PreRenderRecursiveInternal() +80

System.Web.UI.Control.PreRenderRecursiveInternal() +171

System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +842

I have tested a lot of scenarios with no success. RadGrids are both initialized programmatically (ItemCommand, ItemCreated, PreRender, NeedDataSource for NHibernate list).

After testing, exception raise when system tries to render manual columns (GridDateTimeColumn, GridBoundColumn) as AutoGenerateColumns="False". If i remove manual columns, expand/collapse is working.

Grid

answered on 25 Dec 2012

1 answer

681 views

set dropdownlist value client side

Hi, we're using the FormDecorator and I notice on the front end the dropdownlist renders as a div with spans instead of a traditional html select list.

When I try to use jquery to set the selected value after the control renders it doesn't change. I'm guessing because this is technically not a select list anymore.

Is there any work around to this?

FormDecorator

answered on 25 Dec 2012

8 answers

582 views

Hide Column in child hierarchy if no data

I was wondering how to go about hiding several column's in a child of a Hierarchical RadGrid if there is no data found for those columns. It would be quite nice to be able to do the same on the parent as well.

I've had a good search on the forums but can't find a good example to follow..

can anyone suggest a way to do this..

many thanks

Grid

answered on 25 Dec 2012

1 answer

73 views

TableLayoutCssFile & CssFiles.Add

Hi Telerik Team,

I created a RadEditor ( radEditor ) in my webpage. I set :

radEditor.TableLayoutCssFile = myCustimizedTableCssFile;
radEditor.CssFiles.Add ( myCustimizedCssFile );

In the editor iframe, it will automatic load myCustimizedTableCssFile first then load myCustimizedCssFile. Is there have way to switch them?

Thanks,

Editor

answered on 25 Dec 2012

3 answers

190 views

Icons

Deat Telerik-Team

I would be nice to have a property to show or hide the content and title icon.

Regards,
Christian

Notification

answered on 25 Dec 2012

1 answer

128 views

Problem in RadAjaxManager Update Panel

Hey Friends,

I'm using RadAjaxManager in my asp.net form but not working. Problem is that i have 3 dropdown in my page at page load only want to
enable true first dropdown and rest of dropdown want to enable false and when i select first dropdown the second one want to enable true
and first one enable false and when i select value from the second dropdown third want to enable true and reset of the dropdown enable false. i write code for it also put the ids of dropdown RadAjaxManager and Update Panel but not worked...........any idea about it....

General Discussions

answered on 25 Dec 2012

1 answer

184 views

RadGrid Insert Row With dependent Drop Down Lists

Hi i have a raddrig and it has 3 collumns
1.Descr
2.CategoryId (List id,Descr)
3.ModelId. (List id ,Descr)
I want to add a new row but when i select CategoryId from the select list i want to update the modelid,descr on the second
so as to bring the modelids for this category.Is this possible
I have teleriks ver 2010. secons quorter
Thanks a lot.

Grid

answered on 25 Dec 2012

1 answer

78 views

TreeList Node Click

How to get the node click value in server side , client side.

Thanks Advance,
Mohamed.

TreeList

answered on 25 Dec 2012

1 answer

138 views

Is Teleric a Managed or UnManaged Object?

As per the Page life cycle in ASP.net, under the Unload event of Page Life cycle all the controls should be disposed. But it's not true when we have used FileStream Objects in the same class. We have to dispose it manually to manage memory.

Query - When using the teleric controls, is it necessary to dispose it manually or during the execution of Unload event, it's object will be disposed?

Query - Teleric control is Managed or Un-Managed?

General Discussions

answered on 25 Dec 2012