Wpf textbox validating merry dating site send thread

Validation can be a real pain to implement, and contrary to all our Hello World style applications, is not the best way to inform our users that we have an issue with their keyboarding skills.I remember being ecstatic when I learned about the Win Forms Error Provider.The initial class code is given below: The implemented window that supports the aforementioned functionality is given below: The XAML code that creates this window and is ready to support Data Binding with a Client business object is as follows: There are two things worth mentioning here.

As bindings are somewhat expensive no bindings are added by default.Windows Presentation Foundation allows the developers to create attractive Windows applications by provided styles, graphics etc.One the major pain points of using WPF is that it lacks the validation framework.Recently I came across an interface called IData Error Info used for validation, and apparently it’s been around since the early days.I’ve never seen any use of it, or heard of it’s usage until now.

For example, we are validating that the first and last names are not empty fields. Validates On Data Error is the super star behind all this.