Problems with InvokeMember()

Hello,

I have a problem and the search don´t match a result:
I am trying to change the value of public attribute of type double,
which name i am getting at runtime. I was trying to use
Type.InvokeMember()... and now my question:

How is it possible to change an attribute of an object at the runtime
via 'Invoke.Member'?
The example from MSDN works fine for strings ,but it's not working for
primitives like 'double'


Type mtype = m.GetType();
mtype.InvokeMember("AttributName", BindingFlags.SetField, null, m,
2.5);

//m.AttributName is double


Thanks al lot
Jan

PS: I hope I have made my first post correctly

.

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