C# – Logout – How to clear cache , asp.NET

asp.netcvisual studio 2010

I am working on an asp.NET 4.0 Web Application with C#. I am currently authentication with the use of sessions, and on logout I am clearing the session. However there is a problem when the user presses back, he is still able to see the cached page. I would like to disable caching, of such pages, or make sure that it is checked for.

What is the best way of doing this? If I set the server to not store cached information, will this effect all the applications or will it just be my application?

Best Answer

Add this in page_load

Response.Cache.SetCacheability(HttpCacheability.NoCache);

This is the only true answer although it's important to know that it's only a request to the browser to stop caching - it doesn't necessarily have to follow.

This needs to be included on every page you don't want the user to 'back button' onto.

Related Solutions

C# – How to cast int to enum

From an int:

YourEnum foo = (YourEnum)yourInt;

From a string:

YourEnum foo = (YourEnum) Enum.Parse(typeof(YourEnum), yourString);

// The foo.ToString().Contains(",") check is necessary for enumerations marked with an [Flags] attribute
if (!Enum.IsDefined(typeof(YourEnum), foo) && !foo.ToString().Contains(","))
{
    throw new InvalidOperationException($"{yourString} is not an underlying value of the YourEnum enumeration.")
}

Update:

From number you can also

YourEnum foo = (YourEnum)Enum.ToObject(typeof(YourEnum) , yourInt);

C# – How to enumerate an enum

foreach (Suit suit in (Suit[]) Enum.GetValues(typeof(Suit)))
{
}

Note: The cast to (Suit[]) is not strictly necessary, but it does make the code 0.5 ns faster.

Best Answer

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C# – How to cast int to enum

C# – How to enumerate an enum

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