问题
I have a MaskedTextBox using the mask "00/00/\2\000" to restrict input to a format of XX/XX/20XX, with the Text property bound to MyBindingSource.SomeProperty of type DateTime.
Recently, values with a single-digit month or day recently started displaying incorrectly. I expect that the ToString() method is being called on the value at some point in data binding, and I believe the call is not padding month / day with zeroes.
I tried setting the format type of the MaskedTextBox.Text property to DateTime in the advanced data binding properties, but it didn't help.
How can I apply ToString("MMddyyyy") when converting the DateTime object to a string, before the value is bound to the Text property?
回答1:
You can use the binding's Parse and Format events to do the conversion yourself, as seen in this answer
来源：https://stackoverflow.com/questions/2329164/how-to-apply-formatting-string-when-binding-datetime-to-maskedtextbox