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I am looking for a way to display other data in a MaskedTextBox than the data it is bound to (DataTable).

More specifically: The DataTable contains a DateTime column (DateOfBirth). Whenever the year is 1900, I would like to display it as empty in the MaskedTextBox while keeping it in the underlying DataTable, because I use 1900 for "unknown".

Example: Value in the DataTable: 1900-10-09 --[DataBinding]--> MaskedTextBox __-10-09

Currently, I am using the CurrentItemChanged-Event of the BindingSource to modify the Text-property of the MaskedTextBox. That works nicely as long as I simply browse through the DataTable. However, as soon as I start editing the MaskedTextBox, 1900 is back.

It would be nicer if I could somehow intercept the value that is passed from the DataRow to the MaskedTextBox, instead of replacing it afterwards.

Or maybe there is a way to get the MaskedTextBox to display 1900 as empty?

I have already asked the same question at stackoverflow, but so far, nobody new an answer - at least not for Windows Forms:
stackoverflow

So, if somebody knows an answer here, it will be greatly appreciated!

Thank you very much and best regards
-spitfire
Posted 1-Feb-12 7:26am

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Solution 1

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spitfire_ch 1-Feb-12 20:42pm
   
That's exactly the kind of events I have been looking for - but apparently, I have been blind! Thank you very much! :)

Best regards
spitfire_ch

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