I'm working on converting my project to use Implicit Styles. I've followed the Documentation to a T. I'm using NoXAML binaries, I've copied the entire set of theme XAML files into my project, merged them all in the App.xaml file, etc.

Everything I ask to use an implicit theme winds up throwing an error that says "Key cannot be null". Sometimes the entire designer is replaced with a window that says the same and gives a StackTrace. I've attached screenshots of both. 

Can anyone give me some guidance here? Telerik doesn't release crappy broken components, so I'm assuming that I'm missing something easy.

Humble me please.  :)

Hello,

is it possible to accept that the negative sign is put at the end of the number, when editing?

For example: typing "55-" will enter "-55" and will be formatted correctly when the cursor leaves the control.

We have upgraded our Telerik control Toolkit  from 2011.3.1116.40  to 2016.1.217.45 and have found many issues to take care manually in order to satisfy our UI requirement so user will not experience any difference with this upgrade in our system. So far we were able to resolve other issue except the one that I have mentioned below. That is our primary concern as of now and need to resolve ASAP. Please advice or provide any information that will speed up our work.

Here is the issue.
With Telerik version 2011.3.1116.40  our grid control will have validation error and message if input is mandatory like this  and that is what our expected behavior :

refer the  attachment : 2011_telerik.png

But with Telerik 2016.1.217.45, we have lost this functionality. see below :refer the  attachment 

refer the  attachment : 2016_telerik.png

More Inf 

1. we are implementing the validation through the IDataErrorInfo and INotifyDataErrorInfo .

2.  using text boxes inside the gridview.

3. applying the validations on some cell's in the row ,

4. didn't understand why pink color is showing in the background. we didn't want this.

.5. we want red highlight border color for this validation.

 Hi,

   I have three choices for one of the property and I am showing them in combobox.Once user changes the choices we will take confirmation from user if he says no I have to retain the old value and show in the combo the selected value as oldvalue.But here I am not changing the value of model property but combobox value changing to new value.How to stop it??

For Example:

  Property Name :Transportation

Property Values : Enum vehicles

                             {

Bus,

Car,

Walk

                              }

Hi ,

   In our project we used to use Winform PropertyGrid and for some Properties we used TypeConverter to show list of values in comboboxes.

  Now as telerik not supporting complete TypeConverter and sending null value in ITypeDescriptionContext,I can't use it in RadPropertyGrid.

So I thought of Binding List<string> properties to the property as combo and store selectedvalue in another Property once user Select a value in PropertyGrid.

But When I try to bind List<string> Property it is showing it as CollectionEditor but I want to show it as Combobox and once user select I want to store in on another Property so that I can use it further.

And I will get the List dynamically ,so I can't change the type to Enum.

I have tried to create Combobox Template and Combobox userControl I am not able to understand how to pass ItemSource to this usercontrol or template.

I can't create ten templates for each Property.I have to reuse the same template. 

So please suggest something that is feasible as early as Possible.

I have attached two image files. I Want Company,employees,Designations,similar to Countries.

I have created Sample Application but not able to attach here.

We would like to disable the Undo feature of the underlying TextBox in the RadNumericUpDown control.

It interferes with our global Ctrl+Z undo command when the RadNumericUpDown is keyboard focused.

Thanks.

I have problem with using DragAndDropManager for Telerik version 2012.1.326.40. Recently I find out that one of my old projects has problem with drag end drop with some list boxes. It was using RadDragAndDropManager to handle drag and drop. So I switched to DragAndDropManager. However in 2012.1.326 version of controls there is no DragDropPayloadManager. All examples are using this class to pass data so my question is can I implement DragAndDropManager in this version of controls and how to replace DragDropPayloadManager.