Watermark Behavior for Textbox

It is obvious that there is no direct way to set Watermark in WPF textboxes. Some third party controls and codeplex gave extended textboxes which supports watermark. Watermark can also be achieved through overriding the default style of a textbox. A textblock/Label needs to be inserted in default control template to display the Watermark. But...

Navigation Model for simple MVVM applications

Not all the WPF applications are huge. A very few are still used as utilities, installers and simple tools to achieve a specific task. Navigation is very trivial in applications. PRISM supports a very nice navigation framework. To develop such simple WPF applications, developers really hesitate to use big frameworks like PRISM, Caliburn Micro, etc. So...