Emby server unhandled exception3/10/2023 It basically just calls the callback you method at the appropriate intervals. If the callback (running on an arbitrary thread) has an unhandled exception then you'll know about it. Callbacks have to be reentrant because the timer can fire before the last one finishes processing. Timers.Timer is also for server processing. The work is done on an arbitrary thread as well. Actually this version uses Threading.Timer internally to do the work. The only real difference is that this version raises an event when the timer elapses rather than calling a method. But your event handler can throw an exception. Since most events are not set up to handle exceptions the class wraps the entire call in a try-catch. The event handler must be reentrant as well. It relies on the standard WM_TIMER message for processing. Since it goes through the message queue it is not guaranteed accurate because the UI might be busy doing other things. However it does not need to be reentrant because the message queue is serialized. However the handler might get called outside the interval defined by the timer so the handler still has to do some time management. I don't use WinForms.Īs of v2 an unhandled exception in any thread will terminate the application. So if your service isn't terminating prematurely then it is being handled. If I run with an attached Visual Studio Debugger, the exception is thrown but not handled, certainly not by my own code. Error is slightly different now: rvice - Emby Server is a personal media server with apps on just about every device. The service will not terminate but it seems like the thread in which the unhandled exception occurs is "destroyed" and cannot be called again. The service runs just fine apart from that. static internal void SynchronizeIDDSRepositoryWithRmxDB() Let's say the exception occurs at () because of a suddenly unavailable DB server. Then in the catch block is called with SqlCmd.Transaction being 'null'. A NullReferenceException is thrown but my UnhandledExceptionHandler is not called. Instead the service continues to run as if nothing happened but the thread which called this function will never work again. Other threads will continue to work apart from that. Timers are confusing so I'll try to summarize. There are at least 3 in the BCL: System.Timers, System.Threading and. is for server processing although I have to say I don't know that I ever use it myself. Private Function CreateTable() As DataTableĬonn.ConnectionString = ConfigurationManager.ConnectionStrings("connectionString").ConnectionStringĬategoryQuery.CommandText = "select CategoryId, Name from categories"ĭim cdr As SqlDataReader = categoryQuery.ExecuteReader() 'this function creates a datatable for the rad RadTreeView1.DataFieldParentID = "ParentID" ' CreateChildControls the Table and assign the datasource Here is the vb code Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load NET Framework Version:7.1433 ASP.NET Version:7.1433 Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) 1436 Source File: c:\websites\ClickableCommunity\ClickableCommunity.Master Line: 16ĪSP.clickablecommunity_master.Page_Load(Object sender, EventArgs e) in c:\websites\ClickableCommunity\ClickableCommunity.Master:16 Line 16: RadTreeView1.DataSource = CreateTable() Line 15: ' CreateChildControls the Table and assign the datasource Please review the stack trace for more information about theĮrror and where it originated in the code.Įxception Details: System.NullReferenceException: Object reference not set to an instance of an object. Unhandled exception occurred during the execution of the current web Object reference not set to an instance of an object. I followed the video example and changed the way I populate the table, but I know I am getting the correct data back. I am trying to databind a rad tree to a table that I create from a database.
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