Quick Start:

WPF/MVVM Quick Start Tutorial

WPF MVVM step by step (Basics to Advance Level)

DataGrid:

WPF中DataGrid使用初步

WPF之DataGrid应用

WPF DataGrid Practical Examples

http://www.wpftutorial.net/DataGrid.html

WPF之DataGrid用法(一)

DataBase:

http://www.codeproject.com/Tips/988690/WinForms-WPF-Using-SQLite-DataBase

WPF Read Write and Update in an EXCEL File

http://stackoverflow.com/questions/18825888/project-structure-for-mvvm-in-wpf

Sample Code:

https://github.com/Microsoft/WPF-Samples

Open Source Project:

FamilyShow (http://www.vertigo.com/FamilyShow.aspx)

Crack.NET

Prism

WPF Application Framework (WAF).

Caliburn

A WPF Open Source Project – R- DoctorOnLine

Class Digram: