.net - How to pass System.Type in ObjectDataProvider.MethodParameters? -

i want bind function parameter textblock in xaml. function parameter has type system.type. how notate complex object methodparameter in xaml?

<window.resources>     <objectdataprovider x:key="mykey" objecttype="{x:type mytype}" methodname="mymethod">         <objectdataprovider.methodparameters>             <system:int32>123</system:int32> <!-- e.g. primitive type parameter -->             <mynamespace:mycustomtype>what comes here?</mynamespace:mycustomtype>         </objectdataprovider.methodparameters>     </objectdataprovider> </window.resources> [...] <textblock text="{binding source={staticresource mykey}}" /> 

use x:type:

<objectdataprovider x:key="mykey" objecttype="{x:type mytype}" methodname="mymethod">     <objectdataprovider.methodparameters>         <system:int32>123</system:int32>         <x:type typename="mynamespace:mycustomtype"></x:type>     </objectdataprovider.methodparameters> </objectdataprovider>