Time validation in TextBox. Validating a textbox for some regular expression

Question

I\'ve to make a textbox(WPF) for entering time with validation. I want to enter a regular expression validation for time (6:12 am).

Answer 1

check this: http://msdn.microsoft.com/en-us/library/system.windows.controls.validation.errors.aspx for handling validation errors in controls

Else you can implement IDataErrorInfo in your viewmodel so that the Validation is embedded to your data itself.