Passing Parameters Into Silverlight Applications

Passing Parameters Into Silverlight Applications – Jesse Liberty … « work4real.net

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re: Passing Parameters Into Silverlight Applications

ShadowOfTheBeast — Wed, 19 Aug 2009 16:04:30 GMT

Hi Jesse,

Fantastic tutorial as always! can you please do one of the reverse please.

that is passing parameters from a silverlight app to the hosting aspnet page or any other aspnet page within the hosting project.

cheers

Passing Parameters into Silverlight at Programming with Silverlight, WPF & .NET

Passing Parameters into Silverlight at Programming with Silverlight, WPF & .NET — Mon, 29 Dec 2008 12:11:09 GMT

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re: Passing Parameters Into Silverlight Applications

SMusician — Mon, 29 Dec 2008 10:59:30 GMT

Thank you for the post. Let me show another interesting solution.

We know we could use so many parameters as we needed. It would be great if we will not use extra code for each parameter and all our parameters will be optional.

To make each parameter to be human-readable I use JS object.

[code for="TestPage.html"]

var SLSettings =

{

Text: "Our text",

Number: 200

}

</script>

...

</object>

[/code]

The simple way to implement our parameters is using properties of our Silverlight object.

[code for="Page.xaml.cs"]

public partial class Page : UserControl

{

[ScriptableMember]

public string Text { get; set; }

[ScriptableMember]

public int Number { get; set; }

}

[/code]

Well, we'll just use reflection to initialize our parameters.

[code for="App.xaml.cs"]

public partial class App : Application

{

private void Application_Startup(object sender, StartupEventArgs e)

{

Page page = new Page();

if (e.InitParams.ContainsKey("Settings"))

{

string SettingsObjectName = e.InitParams["Settings"];

System.Windows.Browser.ScriptObject SettingsObject = (System.Windows.Browser.ScriptObject)System.Windows.Browser.HtmlPage.Window.GetProperty(SettingsObjectName);

if (SettingsObject != null)

{

PropertyInfo[] properties = page.GetType().GetProperties(BindingFlags.SetProperty | BindingFlags.Public | BindingFlags.Instance | BindingFlags.DeclaredOnly);

foreach (PropertyInfo property in properties)

{

if (Attribute.GetCustomAttribute(property, typeof(ScriptableMemberAttribute)) == null)

continue;

object s = SettingsObject.GetProperty(property.Name);

if (s != null)

property.SetValue(page, s, null);

}

HtmlPage.RegisterScriptableObject("SLApplication", page);

}

this.RootVisual = page;

}

[/code]

Voila!

1. We could pass parameters before initialization.

2. We could set up each parameter after initialization through JavaScript, e.g.:

[code]

SLObj1.content.SLApplication.Text = "New Text";

[/code]

3. No extra code! We have ability to add unlimited number of simple typed properties with just attribute "ScriptableMember" to our Page class.

4. All parameters are optional.

#.think.in infoDose #13 (22nd Dec - 26th Dec)

#.think.in — Mon, 29 Dec 2008 01:19:49 GMT

#.think.in infoDose #13 (22nd Dec - 26th Dec)

Silverlight Cream for December 27, 2008 -- #468

Community Blogs — Sun, 28 Dec 2008 06:56:50 GMT

In this issue: Al Pascual, Damon Payne, Laurent Bugnion, Shawn Wildermuth, Jesse Liberty, and Jobi Joy

Passing Parameters Into Silverlight Applications

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Dew Drop - December 26, 2008 | Alvin Ashcraft's Morning Dew

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