EntityClassGenerator不为NorthwindDataSvc生成任何输出 [英] EntityClassGenerator not generating any output for NorthwindDataSvc

问题描述

我正在尝试使用EntityClassGenerator为NorthwindDataService生成代理。该服务位于：
http://services.odata.org/Northwind/Northwind.svc/$metadata

没有生成输出..

以下是我的代码：

 

 

string
odataProxyCode = string 。空;

 

 

HttpWebRequest
webRequest =（ < span style ="font-family：Consolas; color：＃2b91af; font-size：x-small"> HttpWebRequest ） HttpWebRequest 。创建（@"

http://services.odata.org/Northwind/Northwind.svc/$metadata"）; =（代理！=

 

null ）
？proxy： WebRequest 。DefaultWebProxy;

 

 

使用
（ WebResponse
response = webRequest.GetResponse（））

{

 

 

使用
（ XmlReader
sourceReader = 新
XmlTextReade r （response.GetResponseStream（）））

{

 

 

使用
（ StringWriter
targetWriter = 新
StringWri ter （））

{

< font face ="Consolas"size ="2">

 

 

//生成OData终点代理。

 

 

EntityClassGenerator
entityGenerator = new
EntityClassGenerator （ LanguageOption 。GenerateCSharpCode）;

entityGenerator.OnPropertyGenerated + =

 

new
EventHandler < PropertyGeneratedEventArgs >（entityGenerator_OnPropertyGenerated）;

entityGenerator.OnTypeGenerated + =

 

new
EventHandler < TypeGeneratedEventArgs >（entityGenerator_OnTypeGenerated）;

 

 

IList < System.Data.Metadata.Edm。 EdmSchemaError >
errors = entityGenerator.GenerateCode（sourceReader，targetWriter，namespacename）;

entityGenerator.OnTypeGenerated - =

 

new
EventHandler < TypeGeneratedEventArgs >（entityGenerator_OnTypeGenerated）;

entityGenerator.OnPropertyGenerated - =

 

new
EventHandler < PropertyGeneratedEventArgs >（entityGenerator_OnPropertyGenerated）;

odataProxyCode = targetWriter.ToString（）;

}

}

}

解决方案

Hello Venki，

 

欢迎来到EF论坛！

 

EntityClassGenerator 用于根据.csdl文件生成上下文和实体类源
代码， http://msdn.microsoft.com/en- us / library / bb399292.aspx 。
  

 

对于WCF数据服务元数据，EntityClassGenerator无法识别。 
我们可以看到示例代码没有任何输出，但会产生一些错误（请检查错误变量）。  

 

要生成WCF数据服务客户端代理类，请考虑使用DataSvcUtil.exe， 
http://msdn.microsoft.com/en-us/library/ee383989.aspx 。 

 

美好的一天！

 

< span style ="font-size：12pt">  

最诚挚的问候，b
Lingzhi Sun

MSDN Subscriber Support

如果您对我们的支持有任何反馈，请联系
[e-mail]

I am trying to use the EntityClassGenerator to generate the proxy for the NorthwindDataService. The service is available at : http://services.odata.org/Northwind/Northwind.svc/$metadata

No output is generated ..

Following is my code:

 

 

string odataProxyCode = string.Empty;

 

 

HttpWebRequest webRequest = (HttpWebRequest)HttpWebRequest.Create(@"

http://services.odata.org/Northwind/Northwind.svc/$metadata"); = (proxy !=

 

null) ? proxy : WebRequest.DefaultWebProxy;

 

 

using (WebResponse response = webRequest.GetResponse())

{

 

 

using (XmlReader sourceReader = new XmlTextReader(response.GetResponseStream()))

{

 

 

using (StringWriter targetWriter = new StringWriter())

{

 

 

// Generate the OData End point proxy.

 

 

EntityClassGenerator entityGenerator = new EntityClassGenerator(LanguageOption.GenerateCSharpCode);

entityGenerator.OnPropertyGenerated +=

 

new EventHandler<PropertyGeneratedEventArgs>(entityGenerator_OnPropertyGenerated);

entityGenerator.OnTypeGenerated +=

 

new EventHandler<TypeGeneratedEventArgs>(entityGenerator_OnTypeGenerated);

 

 

IList<System.Data.Metadata.Edm.EdmSchemaError> errors = entityGenerator.GenerateCode(sourceReader, targetWriter, namespacename);

entityGenerator.OnTypeGenerated -=

 

new EventHandler<TypeGeneratedEventArgs>(entityGenerator_OnTypeGenerated);

entityGenerator.OnPropertyGenerated -=

 

new EventHandler<PropertyGeneratedEventArgs>(entityGenerator_OnPropertyGenerated);

odataProxyCode = targetWriter.ToString();

}

}

}

解决方案

Hello Venki,

 

Welcome to EF forum!

 

The EntityClassGenerator is used to generate context and entity classes source codes based on .csdl files, http://msdn.microsoft.com/en-us/library/bb399292.aspx.   

 

For the WCF Data Service metadata, EntityClassGenerator cannot recognize.  We can see the sample codes does not have any output, but it produces some errors (please check the errors variable).  

 

To generate WCF Data Services client proxy classes, please consider using DataSvcUtil.exe instead,  http://msdn.microsoft.com/en-us/library/ee383989.aspx. 

 

Good day!

 

 

Best Regards,
Lingzhi Sun

MSDN Subscriber Support in Forum

If you have any feedback on our support, please contact [e-mail]

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