Viewstate-page status retained

Viewstate is only useful for form submission.

Viewstate in the client is onlyHide domain.

Hide domain

 
<InputType= "Hidden"Name= "_ Viewstate"Value= "">
 

 

Usage

Private VoidPage_load (ObjectSender, system. eventargs e) {viewstate ["Myvalue"]= "Viewstatevalue";//.....}
 

Principle

The stored values are similar to the following: oz4 + o2w8atwxpjs + o2w8 ....
Many people think that this is encrypted information. In fact, it is not. Ms only saves the status of various controls and pages to an appropriate object, serializes the object, and finally performs base64 encoding, directly assign a value to the viewstate control.

You must check what exists in this viewstate. Well, you can write a base64 to String Conversion.CodeHowever, viewstate has different layers. After Normal conversion, You can see messy text.