Sorted Dropdown for MatchPoint Form WebPart with Distinct Elements
MatchPoint is a handy framework for creating fast custom solutions. In this post I'll show you how you can bypass some limitations with the Form WebPart. A customer of mine wanted a sorted select in his form webpart in which he can choose the assigned user of a task list. Something like that: Example of a sorted Dropdown 1.Attempt - The SPListChoiceProvider You can do this easily with a ChoiceField in the Form WebPart. As provider (Source of the Dropdown) a SPListChoiceProvider would be a logical choice. In the SPListChoiceProvider you can select the source list, a key and a value column for the dropdown. Additionally you can also select "UseDistinctValues" to remove duplicate entries. One drawback or missing feature here is the ability to choose an order for the elements. Another is that you can only choose a single field as key. There is no possibility to combine fields. 2. Attempt - The ExpressionChoiceProvider My second attempt was to use...