Basically, the settings cannot be altered in such a manner dynamically. One possible option in this case would be the following. Let us assume, that you have two groups of input controls on the page, which are extended through separate input managers - group1, and group2. When the selection in the dropdown changes, you can hide the necessary group, and leave only the one, which meets the requirements for the proper settings. So, for example, you can have a group of numeric input, and one for entering dates. When the user wants to enter numeric input only, you can hide the date inputs, and vice versa. Altering the settings for the input managers on the client however, is not possible at present.
I hope this information helps.
the Telerik team
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