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How to make custom error pages work in ASP.NET MVC 4
... How to simulate an error thrown by IIS. Be it 500 or 504. What to do in ASP.Net MVC - 5 code to simulate the exception from IIS so that I can test my custom error page
– Unbreakable
Jan 12 '17 at 17:34
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Unauthorised webapi call returning login page rather than 401
...
If you are adding asp.net WebApi inside asp.net MVC web site you probably want to respond unauthorized to some requests. But then ASP.NET infrastructure come into play and when you try to set response status code to HttpStatusCode.Unauthorized...
Escape text for HTML
...
nobody has mentioned yet, in ASP.NET 4.0 there's new syntax to do this. instead of
<%= HttpUtility.HtmlEncode(unencoded) %>
you can simply do
<%: unencoded %>
read more here:
http://weblogs.asp.net/scottgu/archive/2010/04/06/new-lt-gt-s...
JSON.Net Self referencing loop detected
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If using ASP.NET Core MVC, add this to the ConfigureServices method of your startup.cs file:
services.AddMvc()
.AddJsonOptions(
options => options.SerializerSettings.ReferenceLoopHandling =
Newtonsoft.Json.ReferenceLoopHandling.Ignore
);...
How to assign Profile values?
... is just not generated in the project itself but the class is generated by ASP.Net and is present at runtime.
The simplest way to get to object is to use a dynamic type as demonstrated below.
In the Web.config file declare the profile properties:
<profile ...
<properties>
<add nam...
FormsAuthentication.SignOut() does not log the user out
... // Clear session cookie
HttpCookie rSessionCookie = new HttpCookie( "ASP.NET_SessionId", "" );
rSessionCookie.Expires = DateTime.Now.AddYears( -1 );
Response.Cookies.Add( rSessionCookie );
2. Phil Haselden gave the example above of how to prevent caching after logout:
You need to ...
Attempt by security transparent method 'WebMatrix.WebData.PreApplicationStartCode.Start()'
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For me this error was because I did NOT have Microsoft.AspNet.WebHelpers installed after updating from MVC 4 to MVC 5. It was fixed by installing the NuGet package
Install-Package -Id Microsoft.AspNet.WebHelpers
...
ASP.NET Identity reset password
How can I get the password of a user in the new ASP.NET Identity system? Or how can I reset without knowing the current one (user forgot password)?
...
$.getJSON returning cached data in IE8
I'm playing around with ASP.net MVC and JQuery at the moment. I've come across behavour which doesn't seem to make sense.
...
DropDownList's SelectedIndexChanged event not firing
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Set DropDownList AutoPostBack property to true.
Eg:
<asp:DropDownList ID="logList" runat="server" AutoPostBack="True"
onselectedindexchanged="itemSelected">
</asp:DropDownList>
sh...