Changing the value in a TTIWDBDatePicker doesn't register the change to the dataset.  I have downloaded the latest 5.8.3 version of the component.

Using Delphi XE7, intraweb 14.0.50.

Can you please try to put the DataSet in edit mode before changing the value and perform a DataSet Post after editing has finished?

I will try that, however the rest of the controls on the page seem to work correctly with the "AutoEdit" set to true on the datasource.