This article will definitely help you. Here, I will show you how to modify the XAML to add different content to create a multi level row group header too.

Silverlight4

Silverlight

Expression-blend

XAML

DefaultValue Attribute Based Approach to Property Initializaton

2 Apr 2012 by Eugene Sadovoi

Various approaches to implementation of property initialization with DefaultValue attributes

DLR : Expressions and a ‘Hello World’ application

11 Oct 2013 by ASP.NET Community

DLR Expression is the backbone of the DLR. It is a separate feature that you can use without involving the rest of the DLR.Let’s take a look at

Dynamic Expresso

18 Jan 2015 by Davide Icardi

Generate LambdaExpression or function delegate on the fly without compilation.

Dynamic Language Runtime in C#/.NET

30 Jan 2022 by Uladzislau Baryshchyk

An overview of Dynamic Language Runtime DLR in C#

Expand string CAML queries via lambda expressions with Camlex.Net

4 Dec 2012 by sadomovalex

Shows how using reverse engineering feature developers may add new conditions into string CAML queries using lambda expressions.

Expression Tree Traversal Via Visitor Pattern in Practice

15 May 2018 by SlavaUtesinov

How to deal with expression trees, presented at C# as generic Expression type, to achieve some practical goals, for example - translating them to specific language like T-SQL.

Extending Central Silverlight Business Rules to Client and Server Side Field-Level Validation

25 Aug 2010 by Richard Waddell

ViewModel provides both IDataErrorInfo and collection binding for field-level errors and exceptions on client and server.

Extracting a SQL CE DB from Isolated Storage in WP7 Mango

3 Sep 2011 by mbcrump

A look at how to extract a SQL CE DB from Isolated Storage in Windows Phone 7 Mango

From one number system to another

10 May 2012 by PIEBALDconsult

This is an alternative for "From one number system to another"

From one to another positional number system

10 Jul 2016 by Perić Željko

Developing and implementation of algorithm for converting number from one to another positional number system

generic Method-access via Linq.Expressions instead of Reflection

28 Oct 2017 by Mr.PoorEnglish

10-times faster Accesss with Reflection.MethodInfo (updated)

Getting Started with the Silverlight 5 RC

7 Sep 2011 by mbcrump

A look at how to get started working with the Silverlight 5 RC

How to build a VoIP application for Windows Phone 7 that will not be blocked by the service providers

6 Feb 2014 by Bwalsh490

It describes how to develop a WP7 VoIP client application that communicates with a server through TCP/UDP protocol

How to make WPF behave as if MVVM is supported out of the box

2 May 2012 by Elad R. Katz

Switching the code behind to play as ViewModel to get easier development workflow

Improving Maintainability of Legacy Code With a JSON Architecture

31 May 2012 by rcarlson-cayen, Cayen Systems

This article details how to make a legacy code base more maintainable by utilizing a JSON architecture.

Inheriting from a Look Less WPF Control

31 Jul 2017 by Dirk Bahle

This article explains how to take advantage from look-less WPF controls through inheritance

Lambda Expressions

24 Sep 2015 by Milan Matějka

Representing Lambda Expressions as delegates and expression trees.

Magical MVVM in WindowsStore Apps Using Expression Blend

22 Jun 2014 by Saad_Mahmood

Magical MVVM using power of Expression Blend

MuleSoft Variables Exemplified

7 Feb 2017 by KianTing

MuleSoft provides a good structure of documents for developers to learn about its types of variable and properties, but as we all know reading and understanding the concepts is good, but you never beat the act of actually rolling up your sleeves and practicing it in a lab exercise. Learning from exp

session

message

expression

Quick Retouch+

7 Oct 2012 by Briti Sundar

This app will help users to quickly add different type of effects on a picture like sketch, oldphoto, emboss, nightvision, cartoon, oilify, etc.

RegularExpressionValidator

11 Oct 2013 by ASP.NET Community

The RegularExpressionValidator control confirms that the entry matches a pattern defined by a regular expression. This type of validation allows you

RIATasks: A Simple Silverlight CRUD Example (using View Model)

16 Jul 2010 by defwebserver

An example of a Silverlight Application that implements Create, Read, Update, and Delete using web services

Robust UserControl Navigation in Silverlight

18 Feb 2011 by Matt Cavanagh

A simple and very effective way to manage navigation between UserControls in a Silverlight project.

Silverlight 4: Accessing Windows 7 Taskbar using the new COM API

17 Jun 2010 by Kunal Chowdhury «IN»

Silverlight 4 has the power to talk with any other application using the COM API. After reading this article, you will be able to pin/unpin any Windows application to your Windows 7 taskbar directly from your Silverlight 4 out-of-browser application.

Silverlight : Simple PopUp Behavior for VM, MVVM

1 Sep 2010 by defwebserver, hisowa

Behavior that will create a simple PopUp and run some ICommands when closed

Silverlight and WPF Behaviours and Triggers - Understanding, Exploring And Developing Interactivity using C#, Visual Studio and Blend

9 Feb 2010 by Anoop Pillai

A good starting guide for Understanding, Exploring And Developing Silverlight and WPF Behaviors and Triggers - Using C#, Visual Studio and Blend

Simplified MEF: Dynamically Loading a Silverlight .xap

6 Jun 2010 by defwebserver

How to use The Managed Extensibility Framework to Dynamically Load a Silverlight .XAP using View Model Style

Solving LCA by Reducing to RMQ in C#

3 Jan 2011 by Ziad Elmalki

Finds the least common ancestor in a tree

Sprache.Calc: Building Yet Another Expression Evaluator

9 Mar 2019 by AlexeyYakovlev

This paper demonstrates a technique of building Sprache parsers using grammar inheritance.

Styling the Chart Control in the Silverlight 4 Toolkit

22 Aug 2011 by Oludayo Alli

Styling the chart control in the Silverlight Toolkit to create a new look and feel.

Support for IN CAML operation in Camlex

19 Nov 2013 by sadomovalex

Describes support for IN CAML operation in Camlex open source library for Sharepoint developers

Task Scheduler Service on JavaScript for WEB

14 Aug 2015 by Maxim Komlev

Task Scheduler JavaScript library

The long journey from character to AST

16 Jan 2013 by madflame

This article presents a fully functional proof of concept of the translation phases that transform your code from a flat string of characters to an abstract syntax tree.

Theory versus Practice?

18 Jun 2012 by Petr Ivankov