Asp.net – Web.Config – Custom Errors

How can I set 404 and other error pages using web.config? I have tried adding following block in web.config.

     <customErrors defaultRedirect="Forms/Errors/Page_404.aspx" mode="On">
    <error statusCode="500" redirect="servererror.aspx" />
        <error statusCode="403" redirect="NoAccess.htm" />
        <error statusCode="404" redirect="Forms/Errors/Page_404.aspx" />
    </customErrors>

but still its showing default error page of IIS7. How to fix this?

Answers:

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Method 1

I solved it myself. We need to add another section in web.config like below to make it work in IIS 7 / 7.5. For IIS 6 the one works which I mentioned in my question

<system.webServer>
...
<httpErrors errorMode="Custom" >
<remove statusCode="403" subStatusCode="-1" />
<remove statusCode="404" subStatusCode="-1" />
<remove statusCode="500" subStatusCode="-1" />
<error statusCode="404" path="/404.aspx" responseMode="Redirect" />
<error statusCode="403" path="/403.aspx" responseMode="Redirect" />
<error statusCode="500" path="/500.aspx" responseMode="Redirect" />         
</httpErrors>
...
</system.webServer>

Thanks to everyone who answered.

Method 2

Try putting this in the system.webServer section of your Web.config

<system.webServer>
  <httpErrors existingResponse="PassThrough" />
</system.webServer>

Method 3

Try to add the “~/” before paths:

 <customErrors defaultRedirect="~/Forms/Errors/Page_404.aspx" mode="On">
<error statusCode="500" redirect="~/servererror.aspx" />
    <error statusCode="403" redirect="~/NoAccess.htm" />
    <error statusCode="404" redirect="~/Forms/Errors/Page_404.aspx" />
</customErrors>

Method 4

It looks like you’re using a relative path there. Could that be the problem?

Try using Fiddler to see what page your browser is being redirected to.

All methods was sourced from stackoverflow.com or stackexchange.com, is licensed under cc by-sa 2.5, cc by-sa 3.0 and cc by-sa 4.0