This is a pretty common ADFS error, and there are all sorts of reasons that it could happen. The stack trace will be this: PLAIN TEXT CODE: Microsoft.SharePoint.IdentityModel.SPTrustedIssuerNameRegistry.GetIssuerName(SecurityToken securityToken)      at Microsoft.SharePoint.IdentityModel.SPPassiveIssuerNameRegistry.GetIssuerName(SecurityToken securityToken)      at Microsoft.IdentityModel.Tokens.Saml11.Saml11SecurityTokenHandler.CreateClaims(SamlSecurityToken samlSecurityToken)      at Microsoft.IdentityModel.Tokens.Saml11.Saml11SecurityTokenHandler.ValidateToken(SecurityToken token)      at Microsoft.IdentityModel.Web.TokenReceiver.AuthenticateToken(SecurityToken token, Boolean ensureBearerToken, String endpointUri)      at [...]

I ran into this issue really recently working at a client with a new, pretty basic ADFS environment that was acting as the identity provider, through an ADFS proxy server relay. I couldn't wrap my head around why it wasn't working, the groups themselves were resolving correctly, and even showing up in the identity data sources in [...]

Wiring a List of SPListItems to a Telerik RadScheduler is pretty easy. The important thing to remember when working with a RadScheduler is that it expects a list of Appointment objects, how you hydrate an Appointment object is pretty much up to you. Were it gets kinda weird is when you have the collection, the [...]

I ran into this issue very recently when helping with an ADFS environment setup that was using a federation proxy to an internal federation service farm. The timeout desire was to be 15 minutes, after a user would have to re-authenticate to the ADFS box. To expedite the testing, we were attempting to set short [...]

I really thought there would be a tutorial on this on the Telerik website but I couldn’t find anything relevant. In this post, I am going to show you how to add a progress bar column to a RadGrid or RadGridView. So, my goal is to have something like this: I am just setting the [...]