How to know if a service has been started

SebastienPelletier — Wed, 12 May 2010 13:01:39 GMT

Hi ,

I want to dynamically add services in my map and before I would like to know if the service was started.

How to know if a service has been started ?

Thanks

Re: How to know if a service has been started

AvronPolakow — Thu, 20 May 2010 06:47:01 GMT

Although this doesn't check in advance you can check if the service exists when you call the service.

You need to trap the error but the normal try/catch inline won't capture the error because the error generated is at the application level.

You have to capture the error at the Application Level

1 - Create a global in your XAML Page.cs to hold any error you with to pass eg:
public partial class MainPage : UserControl
{
   string _strUnhandledException = "";
:
:

2 - Where you are dynamically adding your layer preload the variable with any message you might wish to display eg:

         ArcGISTiledMapServiceLayer TiledLayer = new ArcGISTiledMapServiceLayer();
         TiledLayer.ID = larrValues[0];
         TiledLayer.Url = larrValues[1];

        _strUnhandledException = larrValues[0] + "\n" + larrValues[1];   // «««««««««
        MyMap.Layers.Add(TiledLayer);

3 - In the Application XAML App.xaml.cs go to the event:

     private void Application_UnhandledException

   // Change the code to the following:
   if (!System.Diagnostics.Debugger.IsAttached)
   {
    e.Handled = true;

    if (_strUnhandledException != "") {ReportCustomError(e);}    // « new line
    else
    {
     Deployment.Current.Dispatcher.BeginInvoke(delegate { ReportErrorToDOM(e); });
    }
   }

4 - In the Application XAML App.xaml.cs add this function:
private void ReportCustomError(ApplicationUnhandledExceptionEventArgs e)
{
   try
   {
    string errorMsg = e.ExceptionObject.Message + e.ExceptionObject.StackTrace;
    errorMsg          = errorMsg.Replace('"', '\'').Replace("\r\n", @"\n");

    errorMsg = "Application Unhandled Exception:"
                   + "\n***************************"
                   + "\n" + e.ToString()
                   + "\n" + _strUnhandledException
                   + "\n\n" + errorMsg;

     MessageBox.Show(errorMsg);
     _strUnhandledException = "";
     return;
   }
   catch (Exception)
   {
   }
}

topic How to know if a service has been started in ArcGIS API for Silverlight Questions

How to know if a service has been started

Re: How to know if a service has been started