We need to be able to enter shorthand date formats or identifiers which can be validated asynchronously via a web service which does not seem to be possible with the current validation flow. We do not want this validation to occurr on every key press but instead when the control loses focus / return is pressed.
For example, the user would need to be able to enter "1M" for 1 month which we need to pass to a backend server which calculates the closest appropriate valid date and returns this, from which we can then populate the date picker control. Whilst this is happening the control currently displays the default previous valid date instead of the entered text of "1M" which we would like the control to display until the result is received.
Additionally we would like the ability to display this custom text in the date picker instead of the actual date. Is it possible to override the text box?
For example, the user would need to be able to enter "1M" for 1 month which we need to pass to a backend server which calculates the closest appropriate valid date and returns this, from which we can then populate the date picker control. Whilst this is happening the control currently displays the default previous valid date instead of the entered text of "1M" which we would like the control to display until the result is received.
Additionally we would like the ability to display this custom text in the date picker instead of the actual date. Is it possible to override the text box?