How to customize EditRecurrenceDialogStyle and EditAppointmentDialogStyle in same time ?

[Gael]

Hi everyone,

I would like to customize the AppointmentDialog and the RecurrenceDialog in same time but I have a problem.

So, I made in two ResourceDictionary a ControlTemplate foreach Dialog.

• <ControlTemplate x:Key="EditAppointmentTemplate" TargetType="telerik:SchedulerDialog">...</ControlTemplate >
• <ControlTemplate x:Key="EditRecurrenceTemplate" TargetType="telerik:SchedulerDialog">...</ControlTemplate >

After that, I create another ResourceDictionary where I define the Styles :

•                     <Style BasedOn="{StaticResource EditRecurrenceDialogStyle}" TargetType="telerik:SchedulerDialog" x:Key="EditRecurrenceDialogStyle">
                          <Setter Property="Template" Value="{StaticResource EditRecurrenceTemplate}"/>
                      </Style>
•                     <Style BasedOn="{StaticResource EditAppointmentDialogStyle}" TargetType="telerik:SchedulerDialog" x:Key="EditAppointmentDialogStyle">
                          <Setter Property="Template" Value="{StaticResource EditAppointmentTemplate}"/>
                      </Style>

Then, in the telerik:RadScheduleView I set the proprieties in the following way :

•             <telerik:RadScheduleView
                                      ...
                                      AppointmentsSource="{Binding Appointments}"
                                      EditRecurrenceDialogStyle="{StaticResource EditRecurrenceDialogStyle}"
                                      EditAppointmentDialogStyle="{StaticResource EditAppointmentDialogStyle}"
                                      ...>

When I test the styles individually it works. However when I test with both styles define, I have this error:

• ArgumentException: Item has already been added. Key in dictionary: 'Telerik.Windows.Controls.SchedulerDialog'  Key being added: 'Telerik.Windows.Controls.SchedulerDialog'

How can I fix that ?
Thanks in advance for your help.

[Dinko | Tech Support Engineer]

Hello Gael,

Looking at the provided code snippet I can't something which could lead to this exception. I am attaching the sample project which I used to test your scenario. Can you take a look at this project and let me know what I am missing from your implementation in order to reproduce this exception?

Regards,
Dinko
Progress Telerik

[Gael]

Hi Dinko,

Thank you for your interest in my question.
At first I want to clarify that I use a UserControl.Resources and a ResourceDictionary.MergedDictionaries. My hierarchy is as follows:
<UserControl.Resources>
    <ResourceDictionary>
         <ResourceDictionary.MergedDictionaries>
               <ResourceDictionary> ... </ ResourceDictionary>
               <ResourceDictionary> ... </ ResourceDictionary>
               <ResourceDictionary>
                     <ControlTemplate ...> ... </ ControlTemplate>
               </ ResourceDictionary>
               <ResourceDictionary>
                     <ControlTemplate ...> ... </ ControlTemplate>
               </ ResourceDictionary>
               <ResourceDictionary>
                     <Style ...> ... </ style>
                     <Style ...> ... </ style>
               </ ResourceDictionary>
          </ ...>
    </ ...>
</UserControl.Resources>

I use your project to test.
I placed my ControlTemplate and my styles directly in Window.Resources, it works. However, I realized another try but this time keeping my hierarchy and it did not work and I find myself with the same error.
I also did tests on my project trying to put only ControlTemplate and styles in UserControl.Resources but this time I find myself with another error telling me that it can not find the resource named EditRecurrenceDialogStyle .

Regards

[Gael]

Re,

I found my mistake.

The problem came from the fact that I started my ControlTemplate in a resourceDictionary ...

The good hierarchy is:
<UserControl.Resources>
     <ResourceDictionary>
          <ResourceDictionary.MergedDictionaries>
                <ResourceDictionary> ... </ ResourceDictionary>
                <ResourceDictionary> ... </ ResourceDictionary>
          </ResourceDictionary.MergedDictionaries>
         <ControlTemplate ...> ... </ ControlTemplate>
         <ControlTemplate ...> ... </ ControlTemplate>
         <Style> ... </ style>
         <Style> ... </ style>
     </ ResourceDictionary>
</UserControl.Resources>

Sorry for the inconvenience.
Have a nice day.