Simple validation in WPF MvvM Part 2

In a previous post I showed you how to use IDataErrorInfo interface to implement simple validation mechanism in WPF MvvM application. In this post we will try to extend and customize this approach a little. It would be nice I the fields of the form be validated on Save button click. So the user will not see error messages when he opens the for for the first time To achieve that…

By Mirek on (tags: IDataErrorInfo, mvvm, validation, WPF, categories: code)

Simple validation in WPF MvvM using IDataErrorInfo

In this post I will try to demonstrate the simplest validation approach for Windows Presentation Foundation application designed in Model View View-Model pattern. We will be using data binding and IDataErrorInfo implementation. Ok. Let’s assume we have simple data model ProductModel which looks like this So we have Name, Price and Amount text boxes, which we want to bind to the…

By Mirek on (tags: IDataErrorInfo, mvvm, validation, WPF, categories: code)