Thank you for writing.
This functionality is indeed incorporated in RadDropDownList but currently it is a little awkward to extend it. Here is how you can achieve this:
First define a class that extends the default AutoCompleteHelper
CustomAutoAppendHelper : AutoCompleteAppendHelper
// The FindString property will return the string that was typed in the text box part of RadDropDownList.
Second, create an instance of your class and assign it to RadDropDownListElement
.radDropDownList1.AutoCompleteMode = AutoCompleteMode.Append;
Please note that this is not available in the official release since there is no FindString
property in the AutoCompleteSuggest helper. This will be available in the internal build
that will be released later today.
We will add a simpler way to change the comparison of the auto complete logic in the Q2 2010 SP1 release and will make the mechanism more extensible. SP1 is expected in 3 weeks.
Please write again if you have other questions.
the Telerik team
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