I am using the MaskedEditExtender control for a textbox field that contains Date of Birth. I want the mask to show "mm/dd/yyyy" when the user clicks on the textbox when it is empty. Right now it only shows "__/_/__"
I believe you can set the PromptCharacter
to something else, but I don't think you can specify multiple prompt characters in one textbox. Because of this I would say your options are limited to: