How to customize ItemsSource of Combobox in default Filter

[Nagisa]

I want to customize the actions in ComboBox in default Filtering.
And I have following problems.

①Show the content in Japanese.
    I can show other label in Filter DropDown by setting LocalizationManager.DefaultResourceManager.
    But I don't know the key of actions in CombobBox. How can I refer it?

②Add/Remove some of action(item) in Actions ComboBox.
For example,
Actions like "Is equals to , Is not equal to, Is less than" will be shown in Combobx in Filter.
Can I remove or add some of its?
Let "Is equals to" or  "Is equals to , Is not equal to " only show in the ComboBox.

Best Regards,
Niwa

[Dimitrina]

Hi Niwa,

 You can customize the actions in the filtering ComboBox.
1. I would recommend you to run through this article to get the keys for actions in ComboBox. 
2. The FilterOperatorsLoading event (that was added Q3 2011) allows you to remove the available filter operators. Please refer to the Events section in this help article.

I hope that this is what you need.

All the best,
Didie
the Telerik team