MVC模型属性和一个视图上的多个表单

I have a general question, but something that is killing me, and once explained, will help a lot. I am wondering how the models are preserved in a view. Basically, if I have three different forms on one view, and they all use the same model, but are updating different properties, do they all have the same model state when each form is submitted to its own controller action? Or, if a property of a model is not stored somewhere on page after rendering, does it get lost and not preserved?I have a general question, but something that i