Dim instance As SecurityTokenService
Dim principal As IClaimsPrincipal
Dim request As RequestSecurityToken
Dim callback As AsyncCallback
Dim state As Object
Dim returnValue As IAsyncResult

returnValue = instance.BeginValidate(principal, request, callback, state)

Public Overridable Function BeginValidate ( _
		principal As IClaimsPrincipal, _
		request As RequestSecurityToken, _
		callback As AsyncCallback, _
		state As Object _
) As IAsyncResult

public virtual IAsyncResult BeginValidate (
		IClaimsPrincipal principal,
		RequestSecurityToken request,
		AsyncCallback callback,
		Object state
)

public:
virtual IAsyncResult^ BeginValidate (
		IClaimsPrincipal^ principal, 
		RequestSecurityToken^ request, 
		AsyncCallback^ callback, 
		Object^ state
)

public IAsyncResult BeginValidate (
		IClaimsPrincipal principal, 
		RequestSecurityToken request, 
		AsyncCallback callback, 
		Object state
)

public function BeginValidate (
		principal : IClaimsPrincipal, 
		request : RequestSecurityToken, 
		callback : AsyncCallback, 
		state : Object
) : IAsyncResult