c# – SQLParameter无法正常工作

Procedure or function ‘getbug’ expects parameter ‘@bugID’, which was not supplied.

这是我调用该过程的代码.

SqlCommand cmd = new SqlCommand("getbug", cn);
cmd.Parameters.Add(new SqlParameter("bugID", bugID));

bugID设置为1089(并且类型为int)

我无法弄清楚为什么这不起作用.

SqlCommand cmd = new SqlCommand("getbug", cn);
cmd.CommandType = CommandType.StoredProcedure;
cmd.Parameters.Add(new SqlParameter("@bugID", bugID));