I have an Application_Error handler in my Global.asax file. However, I load many pages using an XHR request and would rather these "sub pages" return javascript or a real 500 code for my main app to process, rather than an error page.
Is it possible to handle errors on certain pages in a different way? Can a master page handle its own errors in a page extending it without bubbling it up to Global.asax?
Is it possible to detect or use a different template in the asp.net repeater for the last iteration in the repeater?If not I could just use a for loop but I'm curious if it can be done.
View 2 RepliesI have an ASP.NET (framework 2.0) web app running under IIS7.hen I run the app on the server, using IE8, localhost the app runs the way it is supposed to.When I run the app in Visual Studio 2008 (framework 2.0) it runs the way it is supposed to.But when I try to run the app from another computer it renders incorrectly.Same versions of IE8.What would cause the serving of an ASP.NET application to render correctly on the server, but incorrectly when serving to another computer, when the Internet Explorer versions are the same?
View 1 RepliesI am seeing a lot of these errors on the server logs.
Event Type: Warning
Event Source: ASP.NET 2.0.50727.0
Event Category: Web Event
Event ID: 1309
Date: 12/29/2010
Time: 9:16:28 AM
User: N/A
computer: LFIWEB1
Description:
Event code: 3005
Event message: An unhandled exception has occurred.
Event time: 12/29/2010 9:16:28 AM
Event time (UTC): 12/29/2010 3:16:28 PM
Event ID: 7843d62e326c41f1a7c819ec2b362418
Event sequence: 549
Event occurrence: 7
Event detail code: 0
Application information:
Application domain: /LM/W3SVC/1733199574/Root/ComfortlinkNET-1-129381012604990336
Trust level: Full
Application Virtual Path: /ComfortlinkNET
Application Path: D:WebappsComfortlinkNet
Machine name: LFIWEB1
Process information:
Process ID: 3896
Process name: w3wp.exe
Account name: NT AUTHORITYNETWORK SERVICE
Exception information:
Exception type: InvalidCastException
Exception message: Conversion from string "cindye" to type 'Integer' is not valid.
Request information:
Request URL: xxxxxxxxxxxxxxxx
Request path: xxxxxxxxxxxxxxxxxx
User host address:xxxxxxxxxxxxxx
User:
Is authenticated: False
Authentication Type:
Thread account name: NT AUTHORITYNETWORK SERVICE
Thread information:
Thread ID: 1
Thread account name: NT AUTHORITYNETWORK SERVICE
Is impersonating: False
Stack trace: at Microsoft.VisualBasic.CompilerServices.Conversions.ToInteger(String Value)
We have an ASP.NET page which uses an update panel for partial page postbacks. On the server side, the postback performs some database work and updates several UI elements. The database code is all contained in several transactions, so the state will still be consistent if an exception is thrown. We're working on some error handling code now, and my first thought was to log the exception thrown, reload the last consistent UI state, and show some sort of modal popup or other ui element with a brief error message for the user (this is an intranet page, so we're automatically notified of the bug, and the users know where to find us.
View 1 RepliesI have been using using System.Web.Routing for url routing in global.asax file code is as below.
public static void RegisterRoutes(RouteCollection routes) {
routes.MapPageRoute("Home", "", "~/Home.aspx");
routes.MapPageRoute("Posts", "Posts/{blog_url}", "~/blog-description.aspx");
}
protected void Application_Start(object sender, EventArgs e) {
RegisterRoutes( RouteTable.Routes);
}
Now this works fine on local but when i move the same to live it shows error 404 .I want to create a log actually what url is called.
Do anyone of you know how to handle XXX.X IIS HTTP errors in a web.config file? I tried doing the following:
<customErrors mode="On" defaultRedirect="error.aspx">
<error statusCode="403" redirect="error403.aspx" />
<!--NOTE: The following does not work-->
<error statusCode="403.9" redirect="error403.9.aspx" />
<!--ENDNOTE-->
<error statusCode="404" redirect="error404.aspx" />
</customErrors>
But obviously that didn't worked, because the web.config file expects an integer as the statusCode value.
CONTEXT: WinServer 2003 - ASP.NET 3.5
This morning I found myself dealing with A SQL POOLING ERROR Timeout expired. The timeout period elapsed prior to obtaining a connection from the pool. This may have occurred because all pooled connections were in use and max pool size was reached. I did fix this with resetting my pooling and setting a pooling max =100 Anyway now Im starting to rethink how I open connections, dealing with errors and proper closing of connections Would you say this code below is a good way of opening, closing connections (even when errors occurred)
Dim Connection As SqlConnection
Dim myConn As String = (ConfigurationManager.ConnectionStrings("MyConnString").ConnectionString)
Connection = New SqlConnection(myConn)
Try
Dim DBCommand As SqlCommand
Dim dt As New DataTable()
Dim myDataSet As New DataSet
Connection.Open()
DBCommand = New SqlCommand("GetAllCategories_", Connection)
DBCommand.CommandType = CommandType.StoredProcedure
DBCommand.Parameters.Add("@HomePageID", SqlDbType.Int).Value = HiddenChosenVirtualMainID.Value
Dim mySqlAdapter As New SqlDataAdapter(DBCommand)
mySqlAdapter.Fill(dt)
SecondLevelChildDatalist.DataSource = dt
SecondLevelChildDatalist.DataBind()
Catch ex As Exception
'Error goes here
SqlConnection.ClearAllPools()
Finally
'close the connction
Connection.Close()
Connection.Dispose()
End Try
I really want to switch over to ajax, but i can't seem to get my error handlling perfect. If i can't handle errors correctly, I just can't use it. What I really want to happen is to do a full refresh of the Top Frame. How I normally do this is by a similar call to Response.Write(<script>top.location.href = ""</script>). I was currently doing this in Global.asax. This becomes a problem when I error out in an AJAX postback. I've also noticed that There is an AsycPostbackErrorHandler you can attach to the ScriptManager. This is all find an dandy, but it will still hit my Global.asax Application_Error Event.
I am honestly just not sure how to handle this.
As I said, the result I want is....To Reload the Top Frame with some Error Message...whether I have to do some weird redirection or whatever. My problem lies specifically with the Global.asax file.
When setting up asp.net error handlers for things like 404 errors, it is more 'efficient' to do this in IIS, or handle it in the Global.asax Application_Error event? I know the latter will be called, and I want to log this information in a database, but should I then just return without any redirect and let IIS do the redirect, or would it be better to do a response.redirect inside application_error once we've logged it?
View 1 RepliesOn my site I put things in Web user controls. For example, I will have a NewsItem Control, an Article Control, a ContactForm control.These will appear in various places on my site.
What I'm looking for is a way for these controls to pass messages up to the Page that they exist on.
I don't want to tightly couple them, so I think I will have to do this with Events/Delegates. I'm a little unclear as to how I would implement this, though.
A couple of examples:
1: A contact form is submitted. After it's submitted, instead of replacing itself with a "Your mail has been sent" which limits the placement of that message, I'd like to just notify the page that the control is on with a Status message and perhaps a suggested behaviour. So, a message would include the text to render as well as an enum like DisplayAs.Popup or DisplayAs.Success
2: An Article Control queries the database for an Article object. Database returns an Exception. Custom Exception is passed to the page along with the DisplayAs.Error enum. The page handles this error and displays it wherever the errors go.
I'm trying to accomplish something similar to the ValidationSummary Control, except that I want the page to be able to display the messages as the enum feels fit.
Again, I don't want to tightly bind or rely a control existing on the Page. I want the controls to raise these events, but the page can ignore them if it wants.I'd love a code sample just to get me started.
I know this is a more involved question, so I'll wait longer before voting/choosing the answers.
I have a small problem:
Example:
RouteCollection routes
routes.MapPageRoute("Product","{ProductName}","~/Product.aspx")
Address on browser:
localhost:port/Software/VisualStudio
Error: HTTP Error 403.14 - Forbidden (because that Route is not exists).
How can i catch errors when routes are incorrect or not exist?
I'm working on a functionality in my asp.net web site that enables the user to download some files as a zip file. I'm using the DotNetZip library to generate the zip file.
My code looks like this:
protected void OkbtnZipExport_OnClickEvent(object sender, EventArgs e)
{
var selectedDocumentIds = GetSelectedDocIds();
string archiveName = String.Format("archive-{0}.zip", DateTime.Now.ToString("yyyy-MMM-dd-HHmmss"));
AddResponseDataForZipFile(Response, archiveName);
try
{
string errorMessage = Utils.ExportToZip(selectedDocumentIds, arkivdelSearchControl.GetbraArkivConnection(), Response.OutputStream);
if (!string.IsNullOrEmpty(errorMessage)).......
Now, if anything goes wrong, say the Utils.ExportToZip method fails, I want to present an error message to the user and not the download dialog. Do I have to remove some data from the Response object in order to cancel the download operation?
I am learning on how to create data access layer code for a web site. I want to ensure I am actually connecting to the datasource, so, I am wanting to use a try/catch block within my data access layer class methods. What I am not sure how to handle is a case where the connectionstate is not open. The method should ideally return a datatable. If an error is thrown would I just return an empty datatable? That is my first thought. My other thought is to return an object and pass a datatable if the connection succeeds or the exception if the connection fails.
View 10 RepliesIs there a way to check for errors in unopened *.ASPX pages. For example, if you change the name of a function Visual Studio will catch the error on the page and list it in the "Error List" only if the page is opened and being validated?
How do i find out about the following without running the page through the webserver or opening the page to be validated in VS?
<script runat="server">
Public Sub MyFunciton()
Undefined_FUNCTION()
End Sub
</script>
I've been writing an app using the awesome new Razor view engine and for the most part, things have been great.
One issue I keep running into, however, is that if I should happen to write invalid code, such as referencing a null property or even a non existent property, rather than throwing an error, something happens in the background that causes the browser to wait and wait and wait and if I do not cancel the browser's request quick enough, IIS will simply hang.
It seems as if it enters some sort of loop. CPU usage goes up (though not terribly high) and restarting IIS via either GUI or iisreset command seems to take abnormally long (presumably while it waits for the process to safely shutdown).
This also happens for other invalid code scenarios such as failing to close a code block with a closing brace.
I have an ASP.NET website where the pages call a few components in DLLs. I need to change the signature of a method in the component, and short of doing a text search, don't know if this will break any pages or not. IMO, this is the weakness of web programming -- you don't get the benefit of a compiler telling you about syntax errors.
But it doesn't need to be so. Does anyone know if there is a way to run a spider over a website watching for compile errors, or perhaps some tool that would compile all the .aspx files in a folder structure looking for compile errors?
This is merely for syntax checking -- not to actually pre-compile the website.
EDIT It looks like aspnet_compiler is being recommended. I don't use Visual Studio projects for the website -- it's grown over time with my own templating system (back before Master Pages were available). So something that would run aspnet_compiler over all the files in a folder might work...
For some reason the Custom Errors for 404 pages are not working on my production server, but they work fine on development. Instead of going to the custom 404.aspx page, it goes to the ugly IIS 404 page.
Here is my Custom Errors protion of my web.config:
[Code]....
I changed the defaultRedirect to also go to my 404.aspx page just to make sure I was catching everything, but still it does't work. I know I could change the IIS 404 error to also point to my 404.aspx page, but that will not work for me because I need to capture the "aspxerrorpath" in the querystring for .net 404 errors. The IIS method will not give me that.
I am just hoping it is a server configuration I missed somewhere, but everything on production looks the same as on development.
I want put custom error page in my website so I wrote below code in web.config
<httpErrors errorMode="Custom">
<remove statusCode="404" subStatusCode="-1" />
<error statusCode="404" subStatusCode="-1" prefixLanguageFilePath="" path="error-404.aspx" responseMode="ExecuteURL" />
</httpErrors>
is it correct?
or I should put other code?
I am making MSSQL stored procedure CLR calls from ASP pages. When an exception occurs, it is logged and then rethrown. In this scenario I need to be able to handle the exception (if possible) in the ASP page. Note that I cannot move away from classic ASP in this instance; I am stuck within a legacy system for this project. let me know if you know of a way to handle the exceptions in classic ASP.
View 1 RepliesI have done some refactoring on a asp.net mvc application already deployed to a live web site. Among the refactoring was moving functionality to a new controller, causing some urls to change. Shortly after the various search engine robots start hammering the old urls.What is the right way to handle this in general?
Ignore it? In time the SEs should find out that they get nothing but 400 from the old urls.Block old urls with robots.txt?Continue to catch the old urls, then redirect to new ones? Users navigating the site would never get the redirection as the urls are updated through-out the new version of the site. I see it as garbage code - unless it could be handled by some fancy routing?Other?
I have a C# web forms ASP.NET 4.0 web application that uses Routing for URLs for some reason custom errors defined in the system.web section of my web.config is entirely ignored and it will fall back the IIS errors.
This gets entirely ignored
[code]....
This would be a minor inconvenience except that by the fact it falls back to IIS native instead of my application it completely circumvents Elmah logging my 404 exceptions correctly.
When I build my program, if there's one error that prevents it from running, instead of just getting the one error I'll get around 50 additional errors in addition to the real one such as:
Error 27 Validation (XHTML 1.0 Transitional): This name contains uppercase characters, which is not allowed.
Is there any way to not show these?
Why IsNothing() is behave differently between RDL and RDLC? I was trying to create a report (RDLC) in VS 2008 and using the IsNothing() function to check to NULL value, however, it keeps return #ERROR when I tried to execute this expression:IIF(IsNothing(Fields!dbField.Value),"emtpy",Fields!dbField.Value)However, I tried the same expression with Reporting Services report (RDL), it works and return "empty" string.
View 3 RepliesI have encountered a weird thing. I did a quick prototype in plain HTML to show a client an idea for a web page. Then I proceeded to implement the page in MVC 2. The border that I'm utilizing (border-style is ridge) is being displayed differently when rendered as a MVC app versus a HTML page in IE 8 (I haven't checked any other version of IE).
<div style="background-color: black; color: white; width: 100%; border-style: ridge; border-width: 5px;">
<table style="padding: 0; margin: 0; width: 100%;">
<div style="color: white; font-family: Arial; font-size: 32pt; font-weight: bold;">
[code]...