ICallback Event

10-30-2009 7:19 AM |

Hi,

• In my silverlight project pops up a child window. When I click a "OK" button in child window, its call to javascript.

private void OKButton_Click(object sender, RoutedEventArgs e)
{
         HtmlPage.Window.Invoke("CallToServer", controlId,"arg","context");
}

• CallToServer javascript implement a call back event. So its fire following events.

public void RaiseCallbackEvent(string eventArgument)
{
 //code
}

public string GetCallbackResult()
{
            string s="hello world";

            lblTest="Test";
}

• lblTest is a Label on my page. I want to change the text of that label as shown in GetCallbackResult() method. But if I change it, it will not display.
• I know it can do from javascript. But I wont to do it in code behind. Is there any way to do it.

Thanx

 

Re: ICallback Event

11-03-2009 4:41 AM |

Hi,

I'm not quite clear about what you attempt to achieve, would you like to explain a little more? If you need interaction between htmlpage and silverlight, this article will be useful

http://msdn.microsoft.com/en-us/library/cc645076(VS.95).aspx

Thanks,

Re: ICallback Event

11-03-2009 10:43 PM |

Thanx Maud

Actually I want to update my controls with new values returning from GetCallbackResult() method.

Controls such as Textbox, Label, Grid

Thank you

 

Re: ICallback Event

11-06-2009 4:04 AM |

Hi,

Try put update control code in Dispatcher.BeginInvoke() method.