hi ,
I had asked this question serveral days ago, but it's still unresolved. And
I have found some new things. this error just occured sometimes,not always.
the code like this:(It's running in a VS IED Add-In.)
public static Mapping Deserialize(string strXmlFilePath)
{
XmlSerializer s = new XmlSerializer(typeof(Mapping));
using (StreamReader sr = new StreamReader(strXmlFilePath))
{
object o = s.Deserialize(sr);
Type t = o.GetType();
Type t2 = typeof(Mapping);
Mapping m = (Mapping)o;
return m;
}
}
--------------------when the exception is
catched------------------------------------------
Now, I catch the exception in the debuger: variable o references to a
instance of Mapping class, but the sentence Mapping m = (Mapping)o throw a
InvalidCastException.
and:
t.Assembly.CodeBase
"file:///c:/documents and settings/whf.ztlq/application
data/microsoft/visualstudio/7.1/projectassemblies/51an1oxl01/persistlayer.dll"
t2.Assembly.CodeBase
"file:///D:/MyPersistLayer/ORMappingGenerator/ORMappingGenerator/bin/PersistLayer.DLL"
t ==t2
false
-------------------------------------------------------------------------------------------
---------------when it run
correctly-----------------------------------------------------
t.Assembly.CodeBase
"file:///D:/MyPersistLayer/ORMappingGenerator/ORMappingGenerator/bin/PersistLayer.DLL"
t2.Assembly.CodeBase
"file:///D:/MyPersistLayer/ORMappingGenerator/ORMappingGenerator/bin/PersistLayer.DLL"
t ==t2
true
--------------------------------------------------------------------------------------------
Any body can tell me why?
thanks
WangHF 3 2609
Sure. you have two classes called "Mapping". One created by you, the other
created by the system, probably when you referenced a web service or an XML
Schema.
Fully qualify the mapping class that you want on the line:
XmlSerializer s = new XmlSerializer(typeof(Mapping));
so this becomes
XmlSerializer s = new
XmlSerializer(typeof(MyNameSpace.MyPersistLayer.Ma pping));
(I don't know the names of your namespaces).
--
--- Nick Malik [Microsoft]
MCSD, CFPS, Certified Scrummaster http://blogs.msdn.com/nickmalik
Disclaimer: Opinions expressed in this forum are my own, and not
representative of my employer.
I do not answer questions on behalf of my employer. I'm just a
programmer helping programmers.
--
"WangHF" <Wa****@discussions.microsoft.com> wrote in message
news:0B**********************************@microsof t.com... hi ,
I had asked this question serveral days ago, but it's still unresolved. And I have found some new things. this error just occured sometimes,not always.
the code like this:(It's running in a VS IED Add-In.)
public static Mapping Deserialize(string strXmlFilePath) { XmlSerializer s = new XmlSerializer(typeof(Mapping)); using (StreamReader sr = new StreamReader(strXmlFilePath)) { object o = s.Deserialize(sr); Type t = o.GetType(); Type t2 = typeof(Mapping); Mapping m = (Mapping)o; return m; } } --------------------when the exception is catched------------------------------------------ Now, I catch the exception in the debuger: variable o references to a instance of Mapping class, but the sentence Mapping m = (Mapping)o throw a InvalidCastException.
and: t.Assembly.CodeBase "file:///c:/documents and settings/whf.ztlq/application data/microsoft/visualstudio/7.1/projectassemblies/51an1oxl01/persistlayer.dll"
t2.Assembly.CodeBase "file:///D:/MyPersistLayer/ORMappingGenerator/ORMappingGenerator/bin/PersistLayer.DLL"
t ==t2 false ------------------------------------------------------------------------------------------- ---------------when it run correctly----------------------------------------------------- t.Assembly.CodeBase "file:///D:/MyPersistLayer/ORMappingGenerator/ORMappingGenerator/bin/PersistLayer.DLL"
t2.Assembly.CodeBase "file:///D:/MyPersistLayer/ORMappingGenerator/ORMappingGenerator/bin/PersistLayer.DLL"
t ==t2 true
--------------------------------------------------------------------------------------------
Any body can tell me why? thanks
WangHF
Thank you very much.
But, the MAIN problem is that this error just occured SOMETIMES, NOT ALWAYS.
And, in a windows form application, I'm using the same Mapping class in the
same persistlayer.dll, this error never occured in this form application. So
I think this error must be related with Visual Studio and it's mechanism of
loading add-in.
How do you think about this?
"Nick Malik [Microsoft]" wrote: Sure. you have two classes called "Mapping". One created by you, the other created by the system, probably when you referenced a web service or an XML Schema.
Fully qualify the mapping class that you want on the line: XmlSerializer s = new XmlSerializer(typeof(Mapping));
so this becomes XmlSerializer s = new XmlSerializer(typeof(MyNameSpace.MyPersistLayer.Ma pping));
(I don't know the names of your namespaces).
-- --- Nick Malik [Microsoft] MCSD, CFPS, Certified Scrummaster http://blogs.msdn.com/nickmalik
Disclaimer: Opinions expressed in this forum are my own, and not representative of my employer. I do not answer questions on behalf of my employer. I'm just a programmer helping programmers. -- "WangHF" <Wa****@discussions.microsoft.com> wrote in message news:0B**********************************@microsof t.com... hi ,
I had asked this question serveral days ago, but it's still unresolved. And I have found some new things. this error just occured sometimes,not always.
the code like this:(It's running in a VS IED Add-In.)
public static Mapping Deserialize(string strXmlFilePath) { XmlSerializer s = new XmlSerializer(typeof(Mapping)); using (StreamReader sr = new StreamReader(strXmlFilePath)) { object o = s.Deserialize(sr); Type t = o.GetType(); Type t2 = typeof(Mapping); Mapping m = (Mapping)o; return m; } } --------------------when the exception is catched------------------------------------------ Now, I catch the exception in the debuger: variable o references to a instance of Mapping class, but the sentence Mapping m = (Mapping)o throw a InvalidCastException.
and: t.Assembly.CodeBase "file:///c:/documents and settings/whf.ztlq/application data/microsoft/visualstudio/7.1/projectassemblies/51an1oxl01/persistlayer.dll"
t2.Assembly.CodeBase "file:///D:/MyPersistLayer/ORMappingGenerator/ORMappingGenerator/bin/PersistLayer.DLL"
t ==t2 false ------------------------------------------------------------------------------------------- ---------------when it run correctly----------------------------------------------------- t.Assembly.CodeBase "file:///D:/MyPersistLayer/ORMappingGenerator/ORMappingGenerator/bin/PersistLayer.DLL"
t2.Assembly.CodeBase "file:///D:/MyPersistLayer/ORMappingGenerator/ORMappingGenerator/bin/PersistLayer.DLL"
t ==t2 true
--------------------------------------------------------------------------------------------
Any body can tell me why? thanks
WangHF
Sorry, Wang. I'm not going to bite. I gave you the answer. If you don't
want to use it, fine. It's not my defect.
By the way: when .net persists XML, it will often write a namespace into the
XML that matches the values that it used. Take a look to see if you don't
have XML tags that direct the deserializer to misinterpret the data.
And fix your code.
--
--- Nick Malik [Microsoft]
MCSD, CFPS, Certified Scrummaster http://blogs.msdn.com/nickmalik
Disclaimer: Opinions expressed in this forum are my own, and not
representative of my employer.
I do not answer questions on behalf of my employer. I'm just a
programmer helping programmers.
--
"WangHF" <Wa****@discussions.microsoft.com> wrote in message
news:27**********************************@microsof t.com... Thank you very much. But, the MAIN problem is that this error just occured SOMETIMES, NOT ALWAYS. And, in a windows form application, I'm using the same Mapping class in the same persistlayer.dll, this error never occured in this form application. So I think this error must be related with Visual Studio and it's mechanism of loading add-in. How do you think about this?
"Nick Malik [Microsoft]" wrote:
Sure. you have two classes called "Mapping". One created by you, the other created by the system, probably when you referenced a web service or an XML Schema.
Fully qualify the mapping class that you want on the line: XmlSerializer s = new XmlSerializer(typeof(Mapping));
so this becomes XmlSerializer s = new XmlSerializer(typeof(MyNameSpace.MyPersistLayer.Ma pping));
(I don't know the names of your namespaces).
-- --- Nick Malik [Microsoft] MCSD, CFPS, Certified Scrummaster http://blogs.msdn.com/nickmalik
Disclaimer: Opinions expressed in this forum are my own, and not representative of my employer. I do not answer questions on behalf of my employer. I'm just a programmer helping programmers. -- "WangHF" <Wa****@discussions.microsoft.com> wrote in message news:0B**********************************@microsof t.com... > hi , > > I had asked this question serveral days ago, but it's still > unresolved. > And > I have found some new things. this error just occured sometimes,not > always. > > the code like this:(It's running in a VS IED Add-In.) > > public static Mapping Deserialize(string strXmlFilePath) > { > XmlSerializer s = new XmlSerializer(typeof(Mapping)); > using (StreamReader sr = new StreamReader(strXmlFilePath)) > { > object o = s.Deserialize(sr); > Type t = o.GetType(); > Type t2 = typeof(Mapping); > Mapping m = (Mapping)o; > return m; > } > } > --------------------when the exception is > catched------------------------------------------ > Now, I catch the exception in the debuger: variable o references to a > instance of Mapping class, but the sentence Mapping m = (Mapping)o > throw a > InvalidCastException. > > and: > t.Assembly.CodeBase > "file:///c:/documents and settings/whf.ztlq/application > data/microsoft/visualstudio/7.1/projectassemblies/51an1oxl01/persistlayer.dll" > > t2.Assembly.CodeBase > "file:///D:/MyPersistLayer/ORMappingGenerator/ORMappingGenerator/bin/PersistLayer.DLL" > > t ==t2 > false > ------------------------------------------------------------------------------------------- > > > > ---------------when it run > correctly----------------------------------------------------- > t.Assembly.CodeBase > "file:///D:/MyPersistLayer/ORMappingGenerator/ORMappingGenerator/bin/PersistLayer.DLL" > > t2.Assembly.CodeBase > "file:///D:/MyPersistLayer/ORMappingGenerator/ORMappingGenerator/bin/PersistLayer.DLL" > > t ==t2 > true > > -------------------------------------------------------------------------------------------- > > Any body can tell me why? > thanks > > WangHF This thread has been closed and replies have been disabled. Please start a new discussion. Similar topics
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