The designer could not be shown for this file because none of the classes within it can be designed. The designer inspected the following classes in the file: frmSettleCategory --- The base class 'System.Object' cannot be designed. 我所有的界面都不显示,只显示这个问题,只有CS文件,这是为什么啊?急切求助!!!!!!!
应该是因为一些值你没赋值导致的,你可以尝试在load时加入代码:
if(DesignMode) return;