asp.net uploading image to server - asp.net

I am uploading image to the server in an asp.net page.Here is the code..
Code:
protected void Button2_Click1(object sender, EventArgs e)
{
//resimyolu = "~/r/" + FileUpload1.FileName;
FileUpload1.SaveAs(Server.MapPath("~/r/a.png"));
FileUpload1.SaveAs("d:/upresim/a.png");
Image1.ImageUrl = "~/r/a.png";
}
the 'r' folder is the image folder in my project.when I add a picture to the 'r' folder at runtime,it works succesfully on local IIS ,but when I publish my project and host it on a server(remote server) the web page is opening in the browser ,but when I click button2 to add client image(which client user selected from his computer) to the project an error appears like below..
Runtime Error
Description: An application error occurred on the server. The current custom error settings for this application prevent the details of the application error from being viewed remotely (for security reasons). It could, however, be viewed by browsers running on the local server machine.
Details: To enable the details of this specific error message to be viewable on remote machines, please create a <customErrors> tag within a "web.config" configuration file located in the root directory of the current web application. This <customErrors> tag should then have its "mode" attribute set to "Off".

As suggested in the error message, disable the custom errors on your web.config to see what's the issue.
<configuration>
<system.web>
<customErrors mode="Off"/>
</system.web>
</configuration>

The problem is this line.
FileUpload1.SaveAs("d:/upresim/a.png");
Change it to will help.
FileUpload1.SaveAs("d:\\upresim\\a.png");
Avoid using such hardcoded paths if your code. You will face issues when you change machines. Server.MapPath is always a better way to go. If you do not want to save in your web dir, you should always take the base path from configuration.

Related

Runtime Error don't know at ALL what to do i have no experience with these things

Who can help me with this?? I don't know what the hell to do at all. From begining to end I don't even know how to create a tag or nothing. help me? asap this is how it looks:
Server Error in '/HRX' Application. Runtime Error Description: An application error occurred on the server. The current custom error settings for this application prevent the details of the application error from being viewed remotely (for security reasons). It could, however, be viewed by browsers running on the local server machine.
Details: To enable the details of this specific error message to be viewable on remote machines, please create a tag within a "web.config" configuration file located in the root directory of the current web application. This tag should then have its "mode" attribute set to "Off".
Server Error in '/HRX' Application.
Runtime Error
Description: An application error occurred on the server. The current custom error settings for this application prevent the details of the application error from being viewed remotely (for security reasons). It could, however, be viewed by browsers running on the local server machine.
Details: To enable the details of this specific error message to be viewable on remote machines, please create a <customErrors> tag within a "web.config" configuration file located in the root directory of the current web application. This <customErrors> tag should then have its "mode" attribute set to "Off".
<!-- Web.Config Configuration File -->
<configuration>
<system.web>
<customErrors mode="Off"/>
</system.web>
</configuration>
Notes: The current error page you are seeing can be replaced by a custom error page by modifying the "defaultRedirect" attribute of the application's <customErrors> configuration tag to point to a custom error page URL.
<!-- Web.Config Configuration File -->
<configuration>
<system.web>
<customErrors mode="RemoteOnly" defaultRedirect="mycustompage.htm"/>
</system.web>
</configuration>
If you have remote access to the server then try to browse the page on the server locally.
Otherwise try to set customerrors mode to "Off" and deploy it.
<customErrors mode="Off"/>
If you do either way you will hopefully see a Exception StackTrace instead. That will probably give you a better clue of what that is wrong.
In addition to what others have said, it helps to install some sort of error handling capabilities. For a nearly plug and play solution, look into ELMAH (which can be installed easily with NUGET). This keeps a database of all the unhandled exceptions in your ASP.NET site and can even email you the error details when a problem is encountered.
Also, you'll want to set up a custom error page that explains to your users an unexpected error has occurred. This looks much more professional.

asp.net website doesn't run on server

I'm getting a runtime error when I try to access my asp.net website on a server. It works fine from my computer when I test it but once I upload it to my host, the runtime error appears.
I get this message:
Description: An application error occurred on the server. The current custom error settings for this application prevent the details of the application error from being viewed remotely (for security reasons). It could, however, be viewed by browsers running on the local server machine.
Details: To enable the details of this specific error message to be viewable on remote machines, please create a tag within a "web.config" configuration file located in the root directory of the current web application. This tag should then have its "mode" attribute set to "Off".
<!-- Web.Config Configuration File -->
<configuration>
<system.web>
<customErrors mode="Off"/>
</system.web>
</configuration>
My webhost is godaddy. The server is indeed windows and according to their tech support they have all the frameworks installed and up to date (I'd imagine this anyway from such a large host).
Basically they say it's an error on my end but I have no clue what I'm doing wrong. I made the website with Visual Studio 2010. I'm new to this technology.

ASPX page within a .aspx page with iframe throws 500.23 error

I'm trying to embed a ChartModule.aspx page within a Default.aspx page using an iframe.
The ChartModule has a button event which updates a chart. The ChartModule has its own ChartsModule.cs.
I'm getting this error:
HTTP Error 500.23 - Internal Server Error An ASP.NET setting has been
detected that does not apply in Integrated managed pipeline mode.Most
likely causes:
•This application defines configuration in the system.web/httpHandlers
section. Things you can try: •Migrate the configuration to the
system.webServer/handlers section. You can do so manually or by using
AppCmd from the command line. For example, from the IIS Express
install directory, run appcmd migrate config "Default Web Site/".
Using AppCmd to migrate your application will enable it to work in
Integrated mode. It will continue to work in Classic mode and on
previous versions of IIS. •If you are certain that it is OK to ignore
this error, it can be disabled by setting
system.webServer/validation#validateIntegratedModeConfiguration to
false. •Alternatively, switch the application to a Classic mode
application pool. For example, from the IIS Express install directory,
run appcmd set app "Default Web Site/"
/applicationPool:"Clr4ClassicAppPool". Only do this if you are unable
to migrate your application.
Detailed Error Information: Module ConfigurationValidationModule
Notification BeginRequest Handler
PageHandlerFactory-Integrated-4.0 Error Code 0x80070032 Requested
URL http://localhost:4161/Default.aspx Physical Path
C:\Documents and
Settings\singhm\Desktop\Temp\Trial2\Trial2\Default.aspx Logon Method
Not yet determined Logon User Not yet determined Request Tracing
Directory
Why is this?
While this may not answer your question directly, here is a thought:
If you have the option, consider turning ChartModule.aspx into a UserControl (ascx), which acts just like another "page" (same lifecycle, its own codebehind file, etc) but integrates more cleanly into an existing aspx page. The above link should be a good introduction to creating and using UserControls.
The error message contains a clue to the solution:
setting system.webServer/validation#validateIntegratedModeConfiguration to false
So make sure the following is present in your web.config:
<validation validateIntegratedModeConfiguration="false"/>
For example:
<configuration>
<!-- your existing settings -->
<system.webServer>
<!-- Add this to here.... -->
<validation validateIntegratedModeConfiguration="false"/>
</system.webServer>
</configuration>
IIS 7 and ASP.NET are quite helpful these days with regard to to error messages and hints contained therein so you should take the time to read them.
I would really recommend using a usercontrol page instead of iframes in asp.net this way you can bind that usercontrol by doing
public override DataBind()
in that you can pass anything into that usercontrol page like refresh data, load certain data, etc..

Server Error in '/' Application. ASP.NET

Greeting,
I developed a website using ASP.Net 3.5 and C#. It is working good with Visual Stdio 2010.
I uploaded my website to my domain under the public folder.
First time I lunched my website for testing (http://wecoders.com/Habib_cuizine/Gallery.aspx)
I would revive (Server Error in '/' Application.)
Runtime Error Description: An
application error occurred on the
server. The current custom error
settings for this application prevent
the details of the application error
from being viewed remotely (for
security reasons). It could, however,
be viewed by browsers running on the
local server machine.
Details: To enable the details of this
specific error message to be viewable
on remote machines, please create a
tag within a
"web.config" configuration file
located in the root directory of the
current web application. This
tag should then have
its "mode" attribute set to "Off".
<!-- Web.Config Configuration File -->
>
> <configuration>
> <system.web>
> <customErrors mode="Off"/>
> </system.web> </configuration>
Notes: The current error page you are
seeing can be replaced by a custom
error page by modifying the
"defaultRedirect" attribute of the
application's
configuration tag to point to a custom
error page URL.
> <!-- Web.Config Configuration File -->
>
> <configuration>
> <system.web>
> <customErrors mode="RemoteOnly"
> defaultRedirect="mycustompage.htm"/>
> </system.web> </configuration>
To fix this error I added to the webConfig file inside tag:
> <customErrors mode="Off"/>
After that when I lunch the website I would receive a new error as listed bellow:
Configuration Error
Description: An error occurred during the processing of a configuration file required to service this request. Please review the specific error details below and modify your configuration file appropriately.
Parser Error Message: It is an error to use a section registered as allowDefinition='MachineToApplication' beyond application level. This error can be caused by a virtual directory not being configured as an application in IIS.
Source Error:
Line 35: ASP.NET to identify an incoming user.
Line 36: -->
Line 37: <authentication mode="Windows" />
Line 38: <!--
Line 39: The section enables configuration
Source File: \10.0.40.35\wecoders.com\public\habib_cuizine\web.config Line: 37
Please advice how to fix this error and how configure my website which developed using Visual Stdio 2010 to be published in the internet.
Regards,
The key information in this error is this line:
This error can be caused by a virtual
directory not being configured as an
application in IIS.
In IIS, you can have several applications, but they must be configured as an application. Generally, when you create a web project it maps directly to an IIS application.
Check with your hosting service on how to create an IIS application for your web app.
Edit - added
If this is on your server, you can set this up yourself following the instructions in #Frazell Thomas's answer. He beat me to finding that link. To save yourself some reading, you should be able to focus in on the Creating Virtual Directories and Local Web Sites section.
right-click virtual directory (e.g. MyVirtualDirectory)
click convert to application.
Have you configured the virtual directory as an ASP.NET application for the right framework version?
See IIS Setup
Look at these two excerpts:
I uploaded my website to my domain under the public folder.
and
This error can be caused by a virtual directory not being configured as an application in IIS.
It's pretty clear to me that you did exactly what you said you did, and no more, i.e. you transfered the files to the web server, but nothing else. You need to configure that public folder as a virtual directory in IIS as the error is telling you, or it's just not going to work.
Looks like you have <authentication mode="Windows" /> in your web.config file but your hosting provider won't let you use that. Just remove that line.
I got the same problem and my solution was to remove webconfig file from the directory.. then it works..
http://www.velocityreviews.com/forums/t123353-configuration-error.html
If you want to use inetpub/wwwroot/aspnet as your application, remove this
line :
Line 26:
and any other lines which define MachineToApplication beyond application
level
If you want to use d:\inetpub\wwwroot\aspnet\begin\chapter02\ as your
application,
create an IIS Application which points to
d:\inetpub\wwwroot\aspnet\begin\chapter02\
maybe you can refer link above.
For my application, my web.config store in d:\inetpub\wwwroot\aspnet\begin\chapter02\
and when i move the web.config to d:\inetpub\wwwroot\aspnet and the problem is solve.
Please check also does your application have two web.config file.
Looks like this is a very generic message from iis.
in my case we enabled integrated security on web config but forgot to change IIS app pool identity.
Things to check -
go to event viewer on your server and check exact message.
-make sure your app pool and web config using same security(E.g Windows,integrated)
Note: this may not help every time but this might be one of the reason for above error message.
I have the same issue, my application was running on amazon vps, lately i found that bin folder had multiple copies of dll's ...
After removing those copies of dlls like entityframework(copy1).dll, errors were gone....
May be some one will get help...cheers
Removing the web.config-file from the IIS Directory Folder solves the problem.
Try removing the contents of the <compilers> tag in the web.config file. Depending on who you're hosting with, some don't allow the compiler in production.
Your application is trying to compile when it is called and their servers won't allow it.
This wont necessarily fix the problem...but it will tell you what the real problem is. Its currently trying to use a custom error page that doesn't exist.
If you add this line to Web.config (under system.web tag) it should give you the real error.
<system.web>
<!-- added line -->
<customErrors mode="Off"/>
<!-- added line -->
</system.web>
If your project is linq with Sql Database.
Then Simply Check your System Services and Start sql Server Agent Service.
Now your problem is solved.
Just check connectivity between SQL And your App (if you used SQL)

Runtime Error in asp.net?(online )

I develop a web application it is working fine in local.
When i upload the site in online through CuteFTP it is showing the error like this...
Description: An application error
occurred on the server. The current
custom error settings for this
application prevent the details of the
application error from being viewed
remotely (for security reasons). It
could, however, be viewed by browsers
running on the local server machine.
Details: To enable the details of this specific error message to be
viewable on remote machines, please
create a tag within a
"web.config" configuration file
located in the root directory of the
current web application. This
tag should then have
its "mode" attribute set to "Off".
<!-- Web.Config Configuration File -->
<configuration>
<system.web>
<customErrors mode="Off"/>
</system.web>
</configuration>
Notes: The current error page you are seeing can be replaced by a custom error page by modifying the "defaultRedirect" attribute of the application's <customErrors> configuration tag to point to a custom error page URL.
<!-- Web.Config Configuration File -->
<configuration>
<system.web>
<customErrors mode="RemoteOnly" defaultRedirect="mycustompage.htm"/>
</system.web>
</configuration>
please help me i place the but even though it is not working it is giving same error. Thank you
Did you create a custom errors section in your web.config? See here for more details: http://msdn.microsoft.com/en-us/library/h0hfz6fc(VS.71).aspx
As the error message says you need to set this to "Off" to see errors remotely.
You could also look at the event logs on the server for clues.
If you have remote desktop access to the server you can try logging on there and connecting to localhost and see what that tells you.
"Details: To enable the details of this specific error message to be viewable on remote machines, please create a tag within a "web.config" configuration file located in the root directory of the current web application. This tag should then have its "mode" attribute set to "Off"."
Try this and check what the error is.
If you can't, run the application from the server (using a remote desktop tool)..
If you can't, add a try catch that writes the exception to a text file.
The message says "something happened but I am not allowed to show the error. Do this to see the error". So make those changes and try again.
EDIT
Your answer to your question (by the way: it would be clearer to edit the question itself) suggests that you want to write to some directory. On your development system, that worked because then the webapp ran under your own account. On the server the webapp runs under the specified accounts.
So: find the directory where you want to write to, and give the correct account "write" rights there.

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