当尝试从另一个线程wpf和c#访问对象时，交叉线程异常

I have a wpf application. During the running of the application, when I get to some method I fire event which performs some operations . In this event I have to access to an instance of DLL that works with Database , and it throws exception which tells that another thread owns that object. What would be the best way to handle this?I have a wpf application. During the running of