Angelo Lee's Blog
This is my kingdom .If i don't fight for it ,who will ?
摘要: 使用Linq to Entities的时候发生如下异常:Unable to create a constant value of type 'Closure type'. Only primitive types ('such as Int32, String, and Guid') are supported in this context. 代码是这样的:ctx.Products.Where(p => p.Status == (int)s).ToString();其中s是类型为ProdcutStatus的枚举类型:public enum Prodcut 阅读全文
posted @ 2010-12-28 16:05 Angelo Lee 阅读(241) 评论(0) 推荐(0) 编辑
摘要: 调用Type.InvokeMember()时出现MissingMethodException经常是由于缺少必要的BindingFlags引起的。在关于Type.InvokeMember Method的地方有一大段例子代码。这段代码中有一个片断是“//Call an instance method”,其中BindingFlags用的是BindingFlags.Public | BindingFlags.InvokeMethod,即:form1.GetType().InvokeMember( "ShowDialog ", BindingFlags.Public | Bindin 阅读全文
posted @ 2010-12-28 13:51 Angelo Lee 阅读(371) 评论(0) 推荐(0) 编辑