本文整理汇总了VB.NET中System.IdentityModel.Policy.IAuthorizationPolicy.Evaluate方法的典型用法代码示例。如果您正苦于以下问题：VB.NET IAuthorizationPolicy.Evaluate方法的具体用法？VB.NET IAuthorizationPolicy.Evaluate怎么用？VB.NET IAuthorizationPolicy.Evaluate使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类System.IdentityModel.Policy.IAuthorizationPolicy的用法示例。
在下文中一共展示了IAuthorizationPolicy.Evaluate方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的VB.NET代码示例。
示例1: Evaluate
Public Function Evaluate(ByVal evaluationContext As EvaluationContext, _
ByRef state As Object) As Boolean Implements IAuthorizationPolicy.Evaluate
Dim bRet As Boolean = False
Dim customstate As CustomAuthState = Nothing
' If state is null, then this method has not been called before, so
' set up a custom state.
If state Is Nothing Then
customstate = New CustomAuthState()
state = customstate
Else
customstate = CType(state, CustomAuthState)
End If
Console.WriteLine("Inside MyAuthorizationPolicy::Evaluate")
' If the claims have not been added yet...
If Not customstate.ClaimsAdded Then
' Create an empty list of Claims
Dim claims As New List(Of Claim)
' Iterate through each of the claimsets in the evaluation context.
Dim cs As ClaimSet
For Each cs In evaluationContext.ClaimSets
' Look for Name claims in the current claim set.
Dim c As Claim
For Each c In cs.FindClaims(ClaimTypes.Name, Rights.PossessProperty)
' Get the list of operations the given username is allowed to call.
Dim s As String
For Each s In GetAllowedOpList(c.Resource.ToString())
' Add claims to the list
claims.Add(New Claim("http://example.org/claims/allowedoperation", _
s, Rights.PossessProperty))
Console.WriteLine("Claim added {0}", s)
Next s
Next c
Next cs
' Add claims to the evaluation context.
evaluationContext.AddClaimSet(Me, New DefaultClaimSet(Me.Issuer, claims))
' Record that claims have been added.
customstate.ClaimsAdded = True
' Return true, which indicates the method need not to be called again.
bRet = True
Else
' Should never get here, but just in case...
bRet = True
End If
Return bRet
End Function 'Evaluate