How can you block out dates that were already taken in datetimepicker VB.NET

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Im having issues with this because I'm currently working on a
reservation system and I want to block out dates that the user
already taken in the datetimpicker.

What I have tried:

Im having issues with this because I'm currently working on a
reservation system and I want to block out dates that the user
already taken in the datetimpicker.

Posted 13-Dec-17 14:13pm

Matthew Taduran

Updated 14-Dec-17 1:54am

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Ralf Meier · Answer 1 · 2017-12-14T01:54:00

So you should catch the ValueChanged-Event from your DateTimePicker and check it's Value against the List which contains the Dates which are currently selected.
If Value is equal to one Entry of this List you should not accept the Selection - perhaps you show a MessageBox.

The original DateTimePicker-Control has no ability to disable Dates which are given by an external List (or Array).