When deriving and creating a custom date column, what is required in order to maintain sorting and filtering? Here is the original question, posted under a different question already answered:

"When you do this, what is required in order to maintain sorting and filtering capabilities for dateTime?

If you derive a column from DateColumn and and Provider from DateColumnContentProvider and use even a standard datepicker binding in ResolveDisplayElement and return the datePicker in ResolveEditorControl, the sorting seems to be broken and the filtering for specialized filters for things like contains, and not equals appears to be broken as well.

What is the approach one is supposed to take for implementing this custom dateColumn so that things like sorting and filtering stay intact?"

original reference:
http://community.infragistics.com/forums/p/56173/347406.aspx#347406

Thanks,

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I have noticed in an upcoming release a new date time column:

http://blogs.infragistics.com/blogs/atanas_dyulgerov/archive/2012/04/25/new-datetimecolumn-for-the-infragistics-xamgrid-in-2012-1.aspx

And hopefully this will solve issues regarding many customizations currently needed to achieve similar features that the new column type will offer.