使用IntelliTrace,我无法看到通过引用传递给方法的字符串的输出以及同一事件(或根本)中方法的结果。
方法示例:
public bool ByReferenceTestMethod(System.ArgumentNullException exception, ref string referenceArgument)
{
referenceArgument = string.Format("referenceArgument{0}", exception.Message);
return true;
}
collectionplan.xml示例在没有引用参数引用的情况下工作:
<DiagnosticEventSpecification>
<CategoryId>stackoverflow.test.application</CategoryId>
<SettingsName _locID="settingsName.Test.Application.Reference">VerifyIDFromBackEnd called</SettingsName>
<SettingsDescription _locID="settingsDescription.Test.Application.Reference">VerifyIDFromBackEnd was called</SettingsDescription>
<Bindings>
<Binding onReturn="false">
<ModuleSpecificationId>stackoverflow.test.application</ModuleSpecificationId>
<MethodName>ByReferenceTestMethod</MethodName>
<MethodId>Test.Application.TestClass.ByReferenceTestMethod(System.ArgumentException,System.String&):System.Boolean</MethodId>
<ShortDescription _locID="shortDescription.Test.Application.Reference.called">Method 'ByReferenceTestMethod' called</ShortDescription>
<LongDescription _locID="longDescription.Test.Application.Reference.called">ByReferenceTestMethod called with ArgumentException parameter name "{0}" and message "{1}"</LongDescription>
<TypeName>Test.Application.TestClass</TypeName>
<DataQueries>
<DataQuery index="1" maxSize="2048" type="String" name="Exception parameter" _locID="dataquery.Test.Application.Reference.exception.Paramname" query="m_paramName" />
<DataQuery index="1" maxSize="2048" type="String" name="Exception message" _locID="dataquery.Test.Application.Reference.exc5eption.Message" _locAttrData="name" query="_message" />
</DataQueries>
</Binding>
<Binding onReturn="true">
<ModuleSpecificationId>stackoverflow.test.application</ModuleSpecificationId>
<MethodName>ByReferenceTestMethod</MethodName>
<MethodId>Test.Application.TestClass.ByReferenceTestMethod(System.Exception,System.String&):System.Boolean</MethodId>
<ShortDescription _locID="shortDescription.Test.Application.Reference.result">Method 'ByReferenceTestMethod' completed</ShortDescription>
<LongDescription _locID="longDescription.Test.Application.Reference.result">ByReferenceTestMethod returned result "{0}" with an unknown referenceArgument</LongDescription>
<TypeName>Test.Application.TestClass</TypeName>
<DataQueries>
<DataQuery index="-1" maxSize="0" type="Boolean" name="Reference Result" _locID="dataquery.Test.Application.Reference.result" _locAttrData="name" query="" />
</DataQueries>
</Binding>
</Bindings>
</DiagnosticEventSpecification>
collectionplan.xml示例不使用引用参数引用:
<LongDescription _locID="longDescription.Test.Application.Reference.result">ByReferenceTestMethod returned result "{0}" with referenceArgument "{1}"</LongDescription>
<TypeName>Test.Application.TestClass</TypeName>
<DataQueries>
<DataQuery index="-1" maxSize="0" type="Boolean" name="Reference Result" _locID="dataquery.Test.Application.Reference.result" _locAttrData="name" query="" />
<DataQuery index="2" maxSize="4096" type="String" name="referenceArgument" _locID="dataquery.Test.Application.Reference.Reference.Value" _locAttrData="name" query="" />
</DataQueries>
这显示没有已解析标记的LongDescription,如果我更改了顺序,则消息本身根本不显示。
根据我的理解,当onResult =“true”时,ref应该出现,因为直到方法返回之后才会计算该事件。如果我在onResult =“false”dataquery中使用相同的参数,则在该值可能由该方法设置之前进行评估。
我做错了什么?
答案 0 :(得分:1)
据我所知,你不能做你想做的事。我曾经尝试过几次做同样的事情而且没有用。但是,问题不在于ref
参数。它也不适用于&#34; normal&#34;参数。
如果您使用onReturn="true"
,那么您只能引用从方法index="-1"
返回的值。在这种情况下,您无法读取参数值。这是由于IntelliTrace如何工作,我不知道解决方法。
可编程数据查询也无济于事。 PDQ有两种实现方法:
object[] EntryQuery(object thisArg, object[] args)
object[] ExitQuery(object returnValue)
第一个用于分析输入参数(onReturn="false"
),第二个用于分析返回值(onReturn="false"
)。同样,在ExitQuery
中,您只能访问返回值。