AD FS做一些操作与HTTP请求所以***的选择，我发现正在使用的HttpContext项目集合共享数据。

AD FS does some manipulation with the HTTP request so the best option I've found is using the HttpContext Items collection to share data.

因此​​，从HomeRealmDiscovery页面，与设置的值：

So from the HomeRealmDiscovery page, set the values with:

var context = HttpContext.Current;

string someValue = "someValue";
ComplexObject someOtherValue = new ComplexObject();

context.Items.Add("key", someValue);
context.Items.Add("key2", someOtherValue);

然后在FormsLoginPage，以获取值：

And then in the FormsLoginPage, get the values with:

var context = HttpContext.Current;

var value = context.Items["key"] as string;
var otherValue = context.Items["key2"] as ComplexObject;

希望这有助于。