I'm trying to answer this post and I got one issue that I think it is a bug.
What I'm trying to do is that trying to pass one value to Javascript function from Managed Code. As there is no parameter in EventArgs class, I created new class with parameter.It is working fine. then, The problem is that the property that I created "T Data" is not shown in Javascript. another thing that I notice is that sender is always null even we are sending the object.
The new EventArgs class with parameters
public class EventArgs<T> : EventArgs{
private T _data;
public EventArgs(T args)
{
_data = args;
}
public T Data
{
get
{
return _data;
}
}
}
Page.xaml.cs
[Scriptable]
public partial class Page : Canvas {
public Page() {
WebApplication.Current.RegisterScriptableObject("EntryPoint", this);
MouseLeftButtonDown += Page_MouseLeftButtonDown;
}
void Page_MouseLeftButtonDown(object sender, MouseEventArgs e) {
if (CallbackToBrowser != null) {
CallbackToBrowser(this, new EventArgs<string>("my value"));
}
}
[Scriptable]
public event EventHandler CallbackToBrowser;
}
TestPage.html.js
// JScript source code
//contains calls to silverlight.js, example below loads Page.xaml
function createSilverlight()
{
Silverlight.createObjectEx({
source: "Page.xaml",
parentElement: document.getElementById("SilverlightControlHost"),
id: "SilverlightControl",
properties: {
width: "100%",
height: "100%",
version: "1.1",
enableHtmlAccess: "true"
},
events: {
onLoad: OnLoaded
}
});
// Give the keyboard focus to the Silverlight control by default
document.body.onload = function() {
var silverlightControl = document.getElementById('SilverlightControl');
if (silverlightControl)
silverlightControl.focus();
}
}
function OnLoaded(sender, args)
{
sender.Content.EntryPoint.CallbackToBrowser = onManagedCallback;
}
function onManagedCallback(sender, args)
{
if(args.Data){ //ERROR is here. args is nothing. sender is null.
alert(args.Data);
}
}
Is that a bug or Did I miss something in my code? Thanks in advance.
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Best Regards,
Michael Sync
Blog : http://michaelsync.net
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