无法将'x'类型的对象转换为'x'类型 [英] unable to cast object of type 'x' to type 'x'

问题描述

大家好，

我已经生成（使用xsd）报告的c＃代码版本

定义用于报告服务中的2005版报告。我

在本地使用它，我能够反序列化已创建的

报告。然后我将代码（仅）移动到我的主项目中。我访问

rdlc文件就好了，我可以读它们没问题，但是一分钟我就试试以下内容我得到了上面的错误，


_reportDef =（Rdl.Report）ser.Deserialize（fileStream）;


我不知道为什么会出现这种情况....任何人都可以放弃任何关于这个问题，这是什么意思？


万分感谢!!

Hi everyone,
I have generated (using xsd) the c# code version of the report
definition used for 2005 version of reports in reporting services. I
was using it locally and I was able to deserialize already created
reports. I then move the code (only) into my main project. I access
the rdlc files just fine, i can read them no problem, but the minute I
try the following I get the above error,

_reportDef = (Rdl.Report)ser.Deserialize(fileStream);

I have no idea why this might be the case....can anyone shed any light
on the matter?

Thanks a million!!

推荐答案

6月27日下午4:29，ron1 ... @ gmail.com写道：

On Jun 27, 4:29 pm, [e-mail] wrote:

我已经生成（使用xsd）c＃代码报告版本

定义用于报告服务中的2005版报告。我

在本地使用它，我能够反序列化已创建的

报告。然后我将代码（仅）移动到我的主项目中。我访问

rdlc文件就好了，我可以读它们没问题，但是一分钟我就试试以下内容我得到了上面的错误，


_reportDef =（Rdl.Report）ser.Deserialize（fileStream）;


我不知道为什么会出现这种情况....任何人都可以放弃任何光亮

就此事？

I have generated (using xsd) the c# code version of the report
definition used for 2005 version of reports in reporting services. I
was using it locally and I was able to deserialize already created
reports. I then move the code (only) into my main project. I access
the rdlc files just fine, i can read them no problem, but the minute I
try the following I get the above error,

_reportDef = (Rdl.Report)ser.Deserialize(fileStream);

I have no idea why this might be the case....can anyone shed any light
on the matter?

序列化数据可能说明了类型所属的汇编，

和反序列化将尊重这一点。然后你试着把它投到

a不同的类型 - 一个在你的主项目中。


Jon

The serialized data probably says which assembly the type belongs to,
and deserialization will honour that. You''re then trying to cast it to
a different type - one which is within your main project.

Jon

您好 ro*****@gmail.com ，


检查反序列化对象是否等于铸造（完整类型信息，使用

调试器）。


亲切的问候，Alex Meleta

[TechBlog] http://devkids.blogspot.com

Hi ro*****@gmail.com,

Checks that a deserialized object is equal to casted (full type info, using
debugger).

Kind Regards, Alex Meleta
[TechBlog] http://devkids.blogspot.com

大家好，

我已经生成（使用xsd）报告的c＃代码版本

报告服务中用于2005版报告的定义。我

在本地使用它，我能够反序列化已创建的

报告。然后我将代码（仅）移动到我的主项目中。我访问

rdlc文件就好了，我可以读它们没问题，但是一分钟我就试试以下内容我得到了上面的错误，

_reportDef =（Rdl.Report）ser.Deserialize（fileStream）;


我不知道为什么会出现这种情况....任何人都可以放弃任何光线
有关此事？


万分感谢!!

Hi everyone,
I have generated (using xsd) the c# code version of the report
definition used for 2005 version of reports in reporting services. I
was using it locally and I was able to deserialize already created
reports. I then move the code (only) into my main project. I access
the rdlc files just fine, i can read them no problem, but the minute I
try the following I get the above error,
_reportDef = (Rdl.Report)ser.Deserialize(fileStream);

I have no idea why this might be the case....can anyone shed any light
on the matter?

Thanks a million!!

您好，


< ro ***** @ gmail.com写信息

新闻：11 ************ **********@o11g2000prd.googlegr oups.com ...

Hi,

<ro*****@gmail.comwrote in message
news:11**********************@o11g2000prd.googlegr oups.com...

大家好，

我已生成（使用xsd）报告的c＃代码版本

定义用于报告服务中的2005版报告。我

在本地使用它，我能够反序列化已创建的

报告。然后我将代码（仅）移动到我的主项目中。我访问

rdlc文件就好了，我可以读它们没问题，但是一分钟我就试试以下内容我得到了上面的错误，


_reportDef =（Rdl.Report）ser.Deserialize（fileStream）;

Hi everyone,
I have generated (using xsd) the c# code version of the report
definition used for 2005 version of reports in reporting services. I
was using it locally and I was able to deserialize already created
reports. I then move the code (only) into my main project. I access
the rdlc files just fine, i can read them no problem, but the minute I
try the following I get the above error,

_reportDef = (Rdl.Report)ser.Deserialize(fileStream);

你可能想要在另一种类型中反序列化。


这样做：


Console.WriteLine（_reportDef.GetType（）。FullName）;

object o = ser.Deserialize（fileStream）;

Console.WriteLine（_o.GetType （）.FullName）;

看看是否有任何区别。

Must probably you are trying to deserialize in another type.

Do this:

Console.WriteLine( _reportDef.GetType().FullName);
object o = ser.Deserialize(fileStream);
Console.WriteLine( _o.GetType().FullName);
And see if there is any difference.

这篇关于无法将'x'类型的对象转换为'x'类型的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！