Solution:
I have verified that the answers on the Internet are unreliable. In the future, everyone will know that the solution for Flexigrid not displaying data in IE is to specify the Ajax request The data method is Get method
In addition, it is not that flexigrid cannot use the "post" method to send data, but the "post" method must have data for post under IE, such as it can be used during paging. post method, and if you don’t have any data to send, you must use the “get” method. Other browsers may not have strict requirements for this, but IE has stricter requirements: