1、加载不能直接使用表达式列。
2、
Dim dc As DataCol = DataTables("表C").DataCols("c")Dim pi As System.Reflection.PropertyInfo = dc.Gettype.getproperty("IsTemporary",Reflection.BindingFlags.nonpublic Or Reflection.BindingFlags.Instance)output.show( pi.getvalue(dc,Nothing))