Welcome!

Silverlight Authors: Automic Blog, Michael Kopp, AppDynamics Blog, Kaazing Blog, Steven Mandel

Related Topics: Silverlight, AJAXWorld RIA Conference & Expo

Silverlight: Article

Accessing the ASP.NET Authentication, Profile and Role Service in Silverlight

How to access the WCF application services from a directly from the Silverlight client

Part 2: Save Personalization Settings

In this part I will show how to leverage the ASP.NET profile system to store and retrieve data tied to a particular user.  The beautiful thing about this is there is no explicit database configuration required.

First, let's go back to the ASP.NET server project and add the ProfileService.svc.  The easiest way to do this might be to copy the AuthenticationService.svc change the file name and then change the contents as show below.

<%@ ServiceHost Language="C#" Service=
"System.Web.ApplicationServices.
ProfileService"
%>

Now, we need to enable the service via WCF configuration in web.config.  This looks just like the config for the prfofile service.  In the system.serviceModel\services section add a new node.

      <!-- this enables the WCF 
ProfileService endpoint
--> <service name=
"System.Web.ApplicationServices.
ProfileService
" behaviorConfiguration=
"ProfileServiceTypeBehaviors"> <endpoint contract=
"System.Web.ApplicationServices.
ProfileService
" binding="basicHttpBinding"
bindingConfiguration
="userHttp" bindingNamespace=
"http://asp.net/
ApplicationServices/v200
"/> </service>

and in the system.serviceModel\behaviors\serviceBehaviors add a new node

        <behavior name=
"ProfileServiceTypeBehaviors"> <serviceMetadata
httpGetEnabled
="true"/> </behavior>



Now we need to configure the profile system.  Again, in web.config add a section listing all the profile properties.  In the System.web section, add the following node.

    <profile>
      <properties>
        <add name="Color" type=
"string" defaultValue="Red" /> </properties> </profile>

 

Now we need to enable profile service to be accessed from the webservice. To do this, add the following node to the system.web.extensions\scripting\webservices section.

        <profileService enabled=
"true" readAccessProperties=
"Color" writeAccessProperties=
"Color"/>

Now, let's go to the Silverlight client and add a reference to this service.  This is the same as we did authentication service. Add Service Reference, Discover and select the profileService.

image

 

Now, we need to add a little UI to the page.xaml in order to give us a way to view and edit the personalized setting.

            <StackPanel Orientation=
"Horizontal"
HorizontalAlignment=
"Center"> <
TextBlock>Favorite Color:
</TextBlock> <TextBox x:Name=
"colorNameBox"

Width
="100" Height=
"25"></
TextBox> <Button x:Name=
"submitButton"

Width
="50" Height="25" Content="submit" Click=
"submitButton_Click"
>
</
Button> </StackPanel>

Now, let's extend loginComplete to retrieve all the profile properties for the user that just logged in.   Again, we need to do that asynchronously so we don't block the browser.

void client_LoginCompleted
(object sender,
LoginCompletedEventArgs
e) { if (e.Error != null) statusText.Text =
e.Error.ToString(); else { statusText.Text = e.UserState +
" logged In result:" + e.Result; ProfileServiceClient client =
new
ProfileServiceClient(); client.GetAllProperties
ForCurrentUserAsync(false); client.GetAllProperties
ForCurrentUserCompleted +=
new
EventHandler
<GetAllPropertiesFor
CurrentUserCompletedEventArgs
>
(client_GetAllProperties
ForCurrentUserCompleted); } }

When we get the property values back, we just set the LayoutRoot to have that background.

void client_GetAllProperties
ForCurrentUserCompleted
(object sender,
GetAllPropertiesForCurrent
UserCompletedEventArgs
e) { if (e.Error == null) { colorNameBox.Text =
e.Result["Color"]; ChangeBackgroundColor
(e.Result["Color"]); } }
private void ChangeBackgroundColor
(string colorName) { SolidColorBrush brush =
new
SolidColorBrush(); switch (colorName.ToLower()) { case "black": brush.Color = Colors.Black; break; case "blue": brush.Color = Colors.Blue; break; case "brown": brush.Color = Colors.Brown; break; case "green": brush.Color = Colors.Green; break; case "orange": brush.Color = Colors.Orange; break; case "purple": brush.Color = Colors.Purple; break; case "yellow": brush.Color = Colors.Yellow; break; case "red": brush.Color = Colors.Red; break; case "white": default: brush.Color = Colors.White; break; } LayoutRoot.Background = brush; }

Finally, when the submit button is pressed we need to set the value on the server.. for completeness, I show waiting until the result comes back from the server before setting the background locally.

private void submitButton_Click
(object sender, RoutedEventArgs e) { ProfileServiceClient client =
new
ProfileServiceClient(); Dictionary<string, object> properites =
new
Dictionary<string,object>(); properites.Add("Color",colorNameBox.Text); client.SetPropertiesForCurrentUserAsync
(properites, false, properites); client.SetProperties
ForCurrentUserCompleted +=
new EventHandler
<SetPropertiesForCurrent
UserCompletedEventArgs
>
(client_SetPropertiesFor
CurrentUserCompleted); } void client_SetPropertiesFor
CurrentUserCompleted
(object sender,
SetPropertiesForCurrentUser
CompletedEventArgs
e) { Dictionary<string, object>
properites = e.UserState as
Dictionary<string, object>; ChangeBackgroundColor
((string)properites["Color"]); }

The end result looks good!  Notice the employee and the manager can each have different values for color.

image

 

image

 

 

Next Page - Part 3. Enable Custom UI Based on a User's Role

More Stories By Brad Abrams

Brad Abrams is currently the Group Program Manager for the UI Framework and Services team at Microsoft which is responsible for delivering the developer platform that spans both client and web based applications, as well as the common services that are available to all applications. Specific technologies owned by this team include ASP.NET, Atlas and Windows Forms. He was a founding member of both the Common Language Runtime, and .NET Framework teams.

Brad has been designing parts of the .NET Framework since 1998 when he started his framework design career building the BCL (Base Class Library) that ships as a core part of the .NET Framework. He was also the lead editor on the Common Language Specification (CLS), the .NET Framework Design Guidelines, the libraries in the ECMA\ISO CLI Standard, and has been deeply involved with the WinFX and Windows Vista efforts from their beginning.

He co-authored Programming in the .NET Environment, and was editor on .NET Framework Standard Library Annotated Reference Vol 1 and Vol 2 and the Framework Design Guidelines.

Comments (2)

Share your thoughts on this story.

Add your comment
You must be signed in to add a comment. Sign-in | Register

In accordance with our Comment Policy, we encourage comments that are on topic, relevant and to-the-point. We will remove comments that include profanity, personal attacks, racial slurs, threats of violence, or other inappropriate material that violates our Terms and Conditions, and will block users who make repeated violations. We ask all readers to expect diversity of opinion and to treat one another with dignity and respect.


IoT & Smart Cities Stories
Bill Schmarzo, author of "Big Data: Understanding How Data Powers Big Business" and "Big Data MBA: Driving Business Strategies with Data Science," is responsible for setting the strategy and defining the Big Data service offerings and capabilities for EMC Global Services Big Data Practice. As the CTO for the Big Data Practice, he is responsible for working with organizations to help them identify where and how to start their big data journeys. He's written several white papers, is an avid blogge...
Nicolas Fierro is CEO of MIMIR Blockchain Solutions. He is a programmer, technologist, and operations dev who has worked with Ethereum and blockchain since 2014. His knowledge in blockchain dates to when he performed dev ops services to the Ethereum Foundation as one the privileged few developers to work with the original core team in Switzerland.
René Bostic is the Technical VP of the IBM Cloud Unit in North America. Enjoying her career with IBM during the modern millennial technological era, she is an expert in cloud computing, DevOps and emerging cloud technologies such as Blockchain. Her strengths and core competencies include a proven record of accomplishments in consensus building at all levels to assess, plan, and implement enterprise and cloud computing solutions. René is a member of the Society of Women Engineers (SWE) and a m...
Andrew Keys is Co-Founder of ConsenSys Enterprise. He comes to ConsenSys Enterprise with capital markets, technology and entrepreneurial experience. Previously, he worked for UBS investment bank in equities analysis. Later, he was responsible for the creation and distribution of life settlement products to hedge funds and investment banks. After, he co-founded a revenue cycle management company where he learned about Bitcoin and eventually Ethereal. Andrew's role at ConsenSys Enterprise is a mul...
In his general session at 19th Cloud Expo, Manish Dixit, VP of Product and Engineering at Dice, discussed how Dice leverages data insights and tools to help both tech professionals and recruiters better understand how skills relate to each other and which skills are in high demand using interactive visualizations and salary indicator tools to maximize earning potential. Manish Dixit is VP of Product and Engineering at Dice. As the leader of the Product, Engineering and Data Sciences team at D...
Dynatrace is an application performance management software company with products for the information technology departments and digital business owners of medium and large businesses. Building the Future of Monitoring with Artificial Intelligence. Today we can collect lots and lots of performance data. We build beautiful dashboards and even have fancy query languages to access and transform the data. Still performance data is a secret language only a couple of people understand. The more busine...
Whenever a new technology hits the high points of hype, everyone starts talking about it like it will solve all their business problems. Blockchain is one of those technologies. According to Gartner's latest report on the hype cycle of emerging technologies, blockchain has just passed the peak of their hype cycle curve. If you read the news articles about it, one would think it has taken over the technology world. No disruptive technology is without its challenges and potential impediments t...
If a machine can invent, does this mean the end of the patent system as we know it? The patent system, both in the US and Europe, allows companies to protect their inventions and helps foster innovation. However, Artificial Intelligence (AI) could be set to disrupt the patent system as we know it. This talk will examine how AI may change the patent landscape in the years to come. Furthermore, ways in which companies can best protect their AI related inventions will be examined from both a US and...
Bill Schmarzo, Tech Chair of "Big Data | Analytics" of upcoming CloudEXPO | DXWorldEXPO New York (November 12-13, 2018, New York City) today announced the outline and schedule of the track. "The track has been designed in experience/degree order," said Schmarzo. "So, that folks who attend the entire track can leave the conference with some of the skills necessary to get their work done when they get back to their offices. It actually ties back to some work that I'm doing at the University of San...
When talking IoT we often focus on the devices, the sensors, the hardware itself. The new smart appliances, the new smart or self-driving cars (which are amalgamations of many ‘things'). When we are looking at the world of IoT, we should take a step back, look at the big picture. What value are these devices providing. IoT is not about the devices, its about the data consumed and generated. The devices are tools, mechanisms, conduits. This paper discusses the considerations when dealing with the...