I encountered a problem setting the fields in a DateTimePickerExt. If you set some values (correct ones) with the keyboard in such a control, then if you try to read the Value property, you will get the old value if you didn't press the Enter key.
In my case I set the time with the keyboard, then click a button in my form (the control then loses focus). The displayed date time is mine, but the Value property is not updated.
I have tested for this issue in our latest release Essential Suite 184.108.40.206, and the DateTimePickerExt control worked fine here when values were entered using keyboard. The Value property was updated with the right value every time the DateTimePickerExt lost focus and pressing the Enter key was not necessary. Please open an incident in DirectTrac regarding this issue and I will send you the download information for our latest release. Thanks for choosing Syncfusion products.