请问有没有人会解决这个问题？ Object reference not set to an instance of an object. Description: An unhandled exception occurred during the execution of ...

分析器错误信息: 访问被拒绝：“Microsoft.Web.UI.WebControls”。 源错误: 行 196： <add assembly="System.EnterpriseServices, Version=1.0.5000.0 ...

I must be doing something wrong here, but I cannot for the life of me figure it out.<BR><BR>I am attempting to populate the contents of a directory into a treeview and sort it by month/year according ...