Showing posts with label converter. Show all posts
Showing posts with label converter. Show all posts

2016-04-22

WPF, XAML and MVVM: Group and Ungroup your records easily in your DataGrid

In this post I will show you how you can enhance your datagrid with grouping. It will be a long post, it is assumed you already know how to bind and display data.


Introduction

This is what we are going to achieve:

There are several features:
  • The groups are persistent even when the records change or the DataGrid is refreshed.
  • Grouping and Ungrouping is done using checkbox.
  • The expanders have their text formatted (the model store numbers not strings).
  • The expanders are indented, and the headers follow the indentation. 
In addition, I would precise that:
  • The records are not refreshed, only grouped and ungrouped (no additional query from database).
  • Everything is done using Attached Behaviors, Converters and Style, so it is completely reusable.
  • The MVVM pattern is not violated.