图片中的错误在哪里 [英] Where is Error in the picture

问题描述

http://imageshack.us/photo/my-images/714/hatadp.jpg [ ^ ]


错误链接中的图片的原因是什么

http://imageshack.us/photo/my-images/714/hatadp.jpg[^]


What is the reason that the picture in the link of the error

推荐答案

无效的强制转换异常意味着您要强制转换的项目(而我们看不到它)从一种类型转换为另一种类型不能在两种类型之间转换.

不要发布愚蠢的小屏幕截图:将相关代码片段发布到您的问题中.这样，我们就可以看到导致问题的行(指出问题所在，并添加实际的错误消息)以及该行的某些上下文-在这种情况下，希望涉及的各种对象的类型对于这是非常基本的解决您的问题.

您对我们的帮助越多，我们对您的帮助就越大.

Invalid cast exception means that an item you are trying to cast (and we can''t see it) from one type to another is not convertible between the two types.

Don''t post stupid little screen grabs: post the relevant code fragment into your question. That way we get to see the line causing the problem (indicate which it is, and add the actual error message) and some of the context of that line - in this case hopefully the type of the various objects involved, which is prewtty fundamental to solving your problem.

The more you help us, the more we can help you.

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