User932259438 posted
Hi,
I was trying to make example from hhttp://techbrij.com/database-change-notifications-asp-net-signalr-sqldependency, but after run I got:
Server Error in '/' Application.
Not a valid web socket request.
Description:
An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.
Exception Details: System.InvalidOperationException: Not a valid web socket request.
Source Error:
An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below. |
Stack Trace:
[InvalidOperationException: Not a valid web socket request.]
Microsoft.AspNet.SignalR.Transports.WebSocketTransport.AcceptWebSocketRequest(Func`2 callback) +147
Microsoft.AspNet.SignalR.Transports.WebSocketTransport.ProcessRequest(ITransportConnection connection) +250
Microsoft.AspNet.SignalR.PersistentConnection.ProcessRequest(HostContext context) +1563
Microsoft.AspNet.SignalR.Hubs.HubDispatcher.ProcessRequest(HostContext context) +526
Microsoft.AspNet.SignalR.PersistentConnection.ProcessRequest(IDictionary`2 environment) +222
Microsoft.AspNet.SignalR.Owin.Middleware.HubDispatcherMiddleware.Invoke(IOwinContext context) +249
Microsoft.Owin.Mapping.<Invoke>d__0.MoveNext() +523
System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() +26
Microsoft.Owin.Host.SystemWeb.Infrastructure.ErrorState.Rethrow() +33
Microsoft.Owin.Host.SystemWeb.IntegratedPipeline.StageAsyncResult.End(IAsyncResult ar) +150
Microsoft.Owin.Host.SystemWeb.IntegratedPipeline.IntegratedPipelineContext.EndFinalWork(IAsyncResult ar) +42
System.Web.AsyncEventExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +420
System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +155
|
My code:
<!DOCTYPE html>
<html>
<head>
<meta name="viewport" content="width=device-width" />
<title>JobStatus</title>
@Styles.Render("~/Content/css")
@Scripts.Render("~/bundles/modernizr")
@Scripts.Render("~/bundles/jquery")
<script src="js/jquery-1.9.1.js"></script>
<script src="js/jquery.signalR-2.0.0.js"></script>
<script src="signalr/hubs" type="text/javascript"></script>
<script type="text/javascript">
$(function () {
// Proxy created on the fly
var job = $.connection.jobHub;
// Declare a function on the job hub so the server can invoke it
job.client.displayStatus = function () {
getData();
};
// Start the connection
$.connection.hub.start();
getData();
});
function getData() {
var $tbl = $('#tblJobInfo');
$.ajax({
url: '../api/values',
type: 'GET',
datatype: 'json',
success: function (data) {
if (data.length > 0) {
$tbl.empty();
$tbl.append(' <tr><th>ID</th><th>Name</th><th>Last Executed Date</th><th>Status</th></tr>');
var rows = [];
for (var i = 0; i < data.length; i++) {
rows.push(' <tr><td>' + data[i].JobID + '</td><td>' + data[i].Name + '</td><td>' + data[i].LastExecutionDate.toString().substr(0, 10) + '</td><td>' + data[i].Status + '</td></tr>');
}
$tbl.append(rows.join(''));
}
}
});
}
</script>
</head>
<body>
<div>
<table id="tblJobInfo" style="text-align:center;margin-left:10px"></table>
</div>
</body>
</html>
