Hello Sam,

I have been looking into the link you have provided and the requirement described there in the first post is actually supported in our WPF XamEditors. Regarding the null values their default behavior is as you request it and they also have NullText property which you can set to a string that will appear in non-edit-mode. Regarding the formats the XamEditors use the original MS sting formatting in non-edit-mode and we provide a range of masks you can set to restrict your input in edit-mode: http://help.infragistics.com/NetAdvantage/WPF/2011.1/CLR4.0/?page=xamEditors_Masks.html

Please let me know if you require any further assistance on this matter.