Application - Configuration Implementation - Serialize Collections - Pick Up File Write Event To Reload New Instance Of Config Into Memory
Oct 11, 2010
I am working on a web app that will heavily rely on configuration. The configuration is also will be written by another process or human. I am looking to get response on best practices in .net 3.5 on how to implement this case. I had used the configuration section of an early version of the Enterprise Library Applications Block. I really liked working with it but from what I hear it is discontinued in current versions. Hence the question... Need to be able to serialize collections, pick up file write event to reload new instance of config into memory.
I am developing web applicaiton. I want to read web.config in App.config file. I have appSettings and connectionStrings in web.config. How to read that?
created an application that accesses some external APIs (google earth api). When I run in VS, everything works. When I run my application on another computer, I get the error:
I am trying to read a normal string from the web.config file. When I try to read a string from the web.config file the application doesnt seem to read it. I set my sqlconnection string in the web.config file. It reads a sqlconnection string but not a normal string.Here is my code:
How can i Make A Text File In Memory(Ram -> Save NoWhere) And Write Something On It And Open NotePad on top of Client browser And Open That Text File In It And Let the user save it by him/her self? -> in code behind
I have both VS 2005 and 2008 installed on my machine. 2005 is fine. For 2008, literally any asp.net project I try to create gets this eror. I try stepping into the code, and the error occurs apparently before anything that I can trap is loaded. There is no information written to the event log. I have tried this with a "Hello World" webpage with nothing else going on. Seems unique to my Windows Server 2003 machine.
I am getting a weird error in asp.net while using leadtools imaging api. Here's the stack trace.
System.AccessViolationException: Attempted to read or write protected memory. This is often an indication that other memory is corrupt. at SetThreadData(_THREADDATA* ) at Leadtools.Codecs.CodecsOptions.Use() at Leadtools.Codecs.RasterCodecs.DoSave(SaveParams saveParams) at Leadtools.Codecs.RasterCodecs.Save(RasterImage image, Stream stream, RasterImageFormat format, Int32 bitsPerPixel)........
I am maintaining C# .NET code written by somebody else, I get following exception few times,Attempted to read or write protected memory. This is often an indication that other memory is corruptThe code structure where I get the above exception is somethign like this,- it is using ref variables in following sequence,Variable-1 and variable-2 are local variables in App1, - App1: func1() which passes these variables reference to func2(), - App1: func2() passes same variables reference via .net remoting to another application (App2).-App2: does the same passes same received reference to another call 2 times.- The execption is occured while returning from App2.
(App1:func1(ref Var1, ref Var2) --> App1:func2(ref Var1, ref Var2) <---App1 .net remoting to App2--> App2:func3(ref Var1, ref Var2)--> App2:func4(ref Var1, ref Var2)-->variables getting updated and function returned to original caller)
My doubts are ,1. Is passing reference variables in such chain is correct? will it cause such exeption? Does .net support ref variable call directly?
I'm preparing to deploy a ASP.NET web application. The target server has already a previous version of my web application with parameters specified on the web.config file.
In the new version of this web application, the web.config file contains new sections I would like they appear into the target web.config file on the server.
However I can't find the way to merge the new web.config sections into the existing web.config file ?
Does I have to do it programmatically, or is there a tool to merge the both files during installation ? (I'm using Web Setup Project).
Server Error in '/' Application. Attempted to read or write protected memory. This is often an indication that other memory is corrupt.Description: An unhandled exception occurred during the execution of the current web request. review the stack trace for more information about the error and where it originated in the code.
Exception Details: System.AccessViolationException: Attempted to read or write protected memory. This is often an indication that other memory is corrupt.
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.
I'm trying to write a new web.config file using VB in ASP.net. I am trying to set access permissions, but it won't let me use the question mark to denote: <deny users="?" /> in the authorization tag. Is there an alternative to this or a different encoding I should be using for this character?
My specific error: The '?' character cannot be used here.
'Create file, overwrite if exists 'enc is encoding object required by constructor 'It is null, so default encoding is used Dim objXMLTW As New XmlTextWriter((MapPath(".") & "asic" & fold & "" & "web.config"), Nothing) objXMLTW.WriteStartDocument() 'Top level (Parent element) objXMLTW.WriteStartElement("configuration") 'Child elements, from request form objXMLTW.WriteStartElement("system.web") objXMLTW.WriteStartElement("auhorization") objXMLTW.WriteString("deny users="?"") objXMLTW.WriteEndElement() objXMLTW.WriteEndElement() objXMLTW.WriteEndElement() 'End top level element objXMLTW.WriteEndDocument() 'End Document objXMLTW.Flush() 'Write to file objXMLTW.Close()
I have a web.config file defined in my asp.net web application. I have many different settings configured there. I have another project, this time a console application. I'd like to read several configurations from my web.config file. How can this be done?
I have an ASP.NET application running on multiple IIS6 web servers, with a SQL Server 2005 database back-end.
I need to:
monitor the database for the completion of an external job event, and then have exactly one web application instance submit some information to a web service For (1) it seems like a SqlDependency would be the best approach (or just plain old polling). Each web application instance would register such a dependency when it starts up. (I don't want to configure a 'master' instance because the failure of that instance would mean the task doesn't proceed, even if other instances are available. Thus my design is to ensure that if there is an instance available to do the work, then the work ought to proceed.)
For (2) I have been thinking of having some sort of flag in the database that the web application instances try to update once they receive the SqlDependency notification in (1), along the following line (greatly simplified):
UPDATE StatusTable SET TaskStatus = 1 WHERE TaskStatus = 0
SELECT @@ROWCOUNT
that only one application instance would have been able to update the TaskStatus, and thus only one instance would have a @@ROWCOUNT > 0. This would then be the instance 'elected' to submit the information to the web service.
In my windows service application (c#), I am checking if an event log exists then write to that event log, otherwise create new event log and write to it. But it always writes to the generic "Application" event log. Do I need to change some settings?
I have built an ASP.NET (.NET v4) application in VS 2010. It is working just fine. But when I try to create deployment package (so I can deploy it in our test IIS 7.5 Server), it gives me error like this,
Error 1 Could not open Source file: Could not find file 'C:11-2 estobjDebugCSAutoParameterize ransformedWeb.config'. 0 0 test
Thing is in past, I had deployed the SAME application using the SAME method.
My ISP recently has migrated my app to a new platform. The app has now to be parked in a root subfolder, say site1, rather than at the root.
The main page can still be accessed via [URL] is now located at /site1/default.aspx. Subfolder pages however cannot be accessed correctly anymore since the url includes now subfolder name "site1" ie
[URL]
instead of
[URL]
This of course breaks page referencing.
Despite multiple requests, I have not yet obtained an answer so far. Question: Is there a simple way to strip away string "site1" from the url, preferably at the web.config level? I know this can be done programmatically at the page level, to clean up page references (>30 pages). In addition, this could entail further compatibilty problems between the deployment version and the local development site.
I am trying to config my application to use out-of-process sessionState.
<sessionstate mode="stateserver" cookieless="false" timeout="20" sqlconnectionstring="data source=127.0.0.1;user id=<user id>;password=<password>" server="127.0.0.1" port="42424" />In my web.config I get errors for the server and port attributes, telling me that server attribute is not allowed and port attribute is not allowed.
I have a website written in C# that was running fine on one server. We moved it to another server and have a couple issues. I am mainly a VB.NET coder but can do a few things in C#. This is not a project - it is a website and can open it in VS2008 no problem. This is an admin site for the whole website where the user can add customer comments, etc. When logging in, it works fine. I can go to one of the admin pages after logging in and works. If I go to two other different pages, I get this error:
Object reference not set to an instance of an object.
[Code]....
It turns out this is in the main.master page and it is used by the other pages that load fine. The ApplicationTitle variable is set right in the web.config file and like I said, it shows on the other pages.
My question is why would this code work fine for some pages and not two others? All of these admin pages are under a folder called Admin and the web.config file is in the root folder of the website. Its almost like these two pages cannot see the web.config file in the root folder? Why would that be if thats the case?
