ReportViewer Custom Protocol - wpf

Question

I am using the ReportViewer in my WPF application and I am trying to get a custom protocol to work with the application. So I get the ability to open sub-programs inside my application when a url is clicked inside the ReportViewer.
When I click on the custom-protocol-url (inside the ReportViewer) nothing happens.
When I open the same report via the Web-Browser, my URL works flawlessly.
It seems like the ReportViewer doesn't allow custom protocols? Has anyone experienced that aswell? Is there any documentation on that?
http, https and mailto are working in the ReportViewer.
I am just adding an Action in the Report pointing to my url
customurl://123
Url definition:
[HKEY_CLASSES_ROOT\customurl]
#="URL: customurl Protocol"
"URL Protocol"=""
[HKEY_CLASSES_ROOT\customurl\shell]
[HKEY_CLASSES_ROOT\customurl\shell\open]
[HKEY_CLASSES_ROOT\customurl\shell\open\command]
#="\"C:\\Extra Programme\\TestAlert.exe\" \"%1\""
Testalert (just the test-program by microsoft):
static string ProcessInput(string s)
{
// TODO Verify and validate the input
// string as appropriate for your application.
return s;
}
static void Main(string[] args)
{
Console.WriteLine("Alert.exe invoked with the following parameters.\r\n");
Console.WriteLine("Raw command-line: \n\t" + Environment.CommandLine);
Console.WriteLine("\n\nArguments:\n");
foreach (string s in args)
{
Console.WriteLine("\t" + ProcessInput(s));
}
Console.WriteLine("\nPress any key to continue...");
Console.ReadKey();
}

Answer 1

I have looked into the code of ReportViewer and found an if statement, that checks if the url starts with either http:// or https:// or mailto:.
It gets this information with Uri.UriSchemeHttp, Uri.UriSchemeHttps and Uri.UriSchemeMailto
So you could overwrite eg. Uri.UriSchemeHttp with "customurl" (if your url is customurl://123) before rendering the report.
var field = typeof(Uri).GetField("UriSchemeHttp");
field.SetValue(null, "customurl");
The more elegant solution would be, to use a webbrowser control and just show the SSRS Web-Page