Devart Forums

I found out the problem.

Currently, LINQ to SQL does not support object graph serialization out of the box. Therefore, when the serialization engine meets the circular reference between Case.CaseType & CaseType.Cases properties, it breaks.

Nevertheless, i do not need the creation of the EntitySet property but only the EntityRef property. But Entity Developer version 2.0.21 generates broken DataContext code when i choose not to generate the EntitySet property!! I need to remove some entries by hand and this is not very efficient because i need to do the same thing every time i re-generate!!

Is there a roadmap on the fix on this?

I projected to a new custom Entity CaseView which is not binded to the database and in this i need to project 5 properties from Case & CaseType entities.

I used the query:
cases = (from objCase in dataContext.Cases
from objCaseType in dataContext.CaseTypes
where objCase.CuId == CustomerId
&& objCase.CtId == objCaseType.Id
select
new CaseView
{
ParentId = objCase.ParId,
Status = objCase.Status,
Description = objCaseType.Descr,
Id = objCase.Id,
Scope = objCaseType.Scope
}).
ToList();

and i get a :
"Invalid datatype: "

at Devart.Data.Oracle.Linq.Provider.a.a(String A_0, Boolean A_1)
at Devart.Data.Oracle.Linq.Provider.OracleDataSourceInfo.a.a(String A_0)
at Devart.Data.Linq.Provider.DataSourceInfo.TypeSystemProvider.GetProviderType(String typeName)
at Devart.Data.Linq.Provider.Query.SqlFactory.Default(MetaDataMember member)
at Devart.Data.Linq.Provider.Query.ao.a(f A_0, MetaType A_1, List`1& A_2, List`1& A_3, SqlExpression& A_4, IList`1 A_5)
at Devart.Data.Linq.Provider.Query.ao.b(f A_0, MetaType A_1, List`1& A_2, List`1& A_3, SqlExpression& A_4, IList`1 A_5)
at Devart.Data.Linq.Provider.Query.ao.a(f A_0, IList`1 A_1)
at Devart.Data.Linq.Provider.Query.ao.a(MetaType A_0, ITable A_1, IList`1 A_2)
at Devart.Data.Linq.Provider.Query.bk.a(ITable A_0)
at Devart.Data.Linq.Provider.Query.bk.a(ConstantExpression A_0)
at Devart.Data.Linq.Provider.Query.bk.j(Expression A_0)
at Devart.Data.Linq.Provider.Query.bk.a(Expression A_0, Expression A_1, Expression A_2)
at Devart.Data.Linq.Provider.Query.bk.b(MethodCallExpression A_0)
at Devart.Data.Linq.Provider.Query.bk.j(Expression A_0)
at Devart.Data.Linq.Provider.Query.bk.a(Expression A_0, LambdaExpression A_1)
at Devart.Data.Linq.Provider.Query.bk.b(MethodCallExpression A_0)
at Devart.Data.Linq.Provider.Query.bk.j(Expression A_0)
at Devart.Data.Linq.Provider.Query.bk.d(Expression A_0, Expression A_1)
at Devart.Data.Linq.Provider.Query.bk.b(MethodCallExpression A_0)
at Devart.Data.Linq.Provider.Query.bk.j(Expression A_0)
at Devart.Data.Linq.Provider.Query.bk.i(Expression A_0)
at Devart.Data.Linq.Provider.DataProvider.a(Expression A_0)
at Devart.Data.Linq.Provider.DataProvider.h(Expression A_0)
at Devart.Data.Linq.DataQuery`1.i()

Hello,

I use the following query:

(from objCase in dataContext.Cases
from objCaseType in dataContext.CaseTypes
where objCase.CuId == CustomerId
&& objCase.CtId == objCaseType.Id
select new Case {Description = objCaseType.Descr, Id = objCase.Id, Scope = objCaseType.Scope}).
ToList();

Case object is an Entity but with 2 more unbinded properties, Description and Scope where i need to project the relevant values from the joined CaseType Entity. When i run the query i get an InvalidOperationException with these details:

at Devart.Data.Oracle.Linq.Provider.a.a(String A_0, Boolean A_1)
at Devart.Data.Oracle.Linq.Provider.OracleDataSourceInfo.a.a(String A_0)
at Devart.Data.Linq.Provider.DataSourceInfo.TypeSystemProvider.GetProviderType(String typeName)
at Devart.Data.Linq.Provider.Query.SqlFactory.Default(MetaDataMember member)
at Devart.Data.Linq.Provider.Query.ao.a(f A_0, MetaType A_1, List`1& A_2, List`1& A_3, SqlExpression& A_4, IList`1 A_5)
at Devart.Data.Linq.Provider.Query.ao.b(f A_0, MetaType A_1, List`1& A_2, List`1& A_3, SqlExpression& A_4, IList`1 A_5)
at Devart.Data.Linq.Provider.Query.ao.a(f A_0, IList`1 A_1)
at Devart.Data.Linq.Provider.Query.ao.a(MetaType A_0, ITable A_1, IList`1 A_2)
at Devart.Data.Linq.Provider.Query.bk.a(ITable A_0)
at Devart.Data.Linq.Provider.Query.bk.a(ConstantExpression A_0)
at Devart.Data.Linq.Provider.Query.bk.j(Expression A_0)
at Devart.Data.Linq.Provider.Query.bk.a(Expression A_0, Expression A_1, Expression A_2)
at Devart.Data.Linq.Provider.Query.bk.b(MethodCallExpression A_0)
at Devart.Data.Linq.Provider.Query.bk.j(Expression A_0)
at Devart.Data.Linq.Provider.Query.bk.a(Expression A_0, LambdaExpression A_1)
at Devart.Data.Linq.Provider.Query.bk.b(MethodCallExpression A_0)
at Devart.Data.Linq.Provider.Query.bk.j(Expression A_0)
at Devart.Data.Linq.Provider.Query.bk.d(Expression A_0, Expression A_1)
at Devart.Data.Linq.Provider.Query.bk.b(MethodCallExpression A_0)
at Devart.Data.Linq.Provider.Query.bk.j(Expression A_0)
at Devart.Data.Linq.Provider.Query.bk.i(Expression A_0)
at Devart.Data.Linq.Provider.DataProvider.a(Expression A_0)
at Devart.Data.Linq.Provider.DataProvider.h(Expression A_0)
at Devart.Data.Linq.DataQuery`1.i()

Hello,
I have a one-to-many relationship defined between 2 Entities in the Entity Developer. A CaseType on the "one" side and a "Case" entity on the "many" side.
I use them, along with other entities, in a Silverlight application which communicates with the database through the use of a WCF Web Service generated by Visual Studio. I have a Web Service function in which i load Cases and return them to the Silverlight application. As you may already know, the Web Service creates its own set of classes as wrappers for the classes you reference in the function. Therefore, for each Entity class, a new class is created in the context of the Web Service automatically for the client application to use.
The problem is this: If i don't define the aforementioned Association everything works fine. If i define it, the function call fails and i get a :

{System.ServiceModel.CommunicationException: The server did not provide a meaningful reply; this might be caused by a contract mismatch, a premature session shutdown or an internal server error.

On a first look, the extra association properties are defined in both set of classes and marked with a DataMemberAttribute.

Can you please advice on the matter?

That worked. Thank you.

Hello,
I use the latest Oracle version of Entity Developer and i cannot add a custom Association because the relevant OK button is always disabled.

Maybe im doing something wrong here?

My database do not have any foreign keys defined. Nevertheless, i want to add a one-to-many association between 2 entities, a "Case" entity and a "CateType" entity. "One" is "CaseType" and the property is "Id" and "Many" is "Case" and the property is "CtId". I guess i describe something very common...

I want to create an association and generate a "CaseType" property for the "Case" entity. Nevertheless, whatever i do, the OK button is always disabled.

Please advice...

the last entry in the call stack is this:
Devart.Data.Linq.dll!Devart.Data.Linq.Provider.Query.DbMethodCallConverter.EscapeLikeText(string text = null, char escape = '~') + 0x9 bytes

Hello,

From a rather simple query, when i call the ToList() method, i get the following error :
Object reference not set to an instance of an object
at Devart.Data.Linq.Provider.Query.DbMethodCallConverter.EscapeLikeText(String text, Char escape)

The query ends like this:

var result = query.Select(a => new SearchedCustomer()
{
Id = (long) a.Customer.Id,
Code = a.Customer.Code,
AccountName = a.CustomerInfo.AccName,
TaxRegNo = a.CustomerInfo.TaxRegno,
IdCardNo = a.CustomerInfo.Identity,
Balance = (decimal) a.Customer.Balance,
BalanceAge = (int) a.Customer.BalAge
});

Where SearchedCustomer is an Entity defined through Entity Developer but it has NO source and all its properties are read-only.

Please advice...

Hello,

If i generate the classes using the O-R tool, each business class e.g. Customer gets a Table attribute in which the name of the table is prefixed by the relevant default schema E.g. SCHEMA1.CUSTOMERS. If i use a different schema when i instantiate the DataContext class, data for Customers are still retrieved from the SCHEMA1.CUSTOMERS table!!! Both users have DBA priviledges and i think this is the reason behind the visibility of the old schema. If i change the attribute to point to a non existent schema, i get an error "table or view does not exist". It seems to me, that the tool should not prefix the table name with a user. If i just delete the schema prefix, everything works as expected.

Using the latest build 5.20.29, everything worked ok! The integration with the grid seems to be ok. I;ll get back to you if needed.

Thanks.

Hello,

In addition, i think i found a bug.

If i generate the classes using the O-R tool, each business class e.g. Customer gets a Table attribute in which the name if the table is prefixed by the relevant default schema E.g. SCHEMA1.CUSTOMERS. If i use a different schema when i instantiate the DataContext class, data for Customers are still retrieved from the SCHEMA1.CUSTOMERS table!!! Both users have DBA priviledges and i think this is the reason behind the visibility of the old schema. If i change the attribute to point to a non existent schema, i get an error "table or view does not exist". It seems to me, that the tool should not prefix the table name with a user. If i just delete the schema prefix, everything works as expected.

Hello,

I tested the project again and i got the same results. It is very important for me to use this functionality.

I attach the call stack generated when i break in the frozen application.

It is apparent that an exception is raised with the following information :

Devart.Data.Linq.dll!Devart.Data.Linq.Provider.Query.p.a.a(Devart.Data.Linq.Provider.Query.an A_0 = text = The name 'Text' does not exist in the current context,
source = The name 'SourceExpression' does not exist in the current context) + 0x21d bytes
Devart.Data.Linq.dll!Devart.Data.Linq.Provider.Query.SqlVisitor.a(Devart.Data.Linq.Provider.Query.SqlNode A_0) + 0x48 bytes
Devart.Data.Linq.dll!Devart.Data.Linq.Provider.Query.SqlVisitor.c(Devart.Data.Linq.Provider.Query.SqlExpression A_0) + 0x9 bytes
Devart.Data.Linq.dll!Devart.Data.Linq.Provider.Query.p.a.a(Devart.Data.Linq.Provider.Query.an A_0 = text = The name 'Text' does not exist in the current context,
source = The name 'SourceExpression' does not exist in the current context) + 0x21d bytes
Devart.Data.Linq.dll!Devart.Data.Linq.Provider.Query.SqlVisitor.a(Devart.Data.Linq.Provider.Query.SqlNode A_0) + 0x48 bytes
Devart.Data.Linq.dll!Devart.Data.Linq.Provider.Query.SqlVisitor.c(Devart.Data.Linq.Provider.Query.SqlExpression A_0) + 0x9 bytes
Devart.Data.Linq.dll!Devart.Data.Linq.Provider.Query.SqlVisitor.a(Devart.Data.Linq.Provider.Query.an A_0 = text = The name 'Text' does not exist in the current context,
source = The name 'SourceExpression' does not exist in the current context) + 0x16 bytes
Devart.Data.Linq.dll!Devart.Data.Linq.Provider.Query.p.a.a(Devart.Data.Linq.Provider.Query.an A_0) + 0x252 bytes
Devart.Data.Linq.dll!Devart.Data.Linq.Provider.Query.SqlVisitor.a(Devart.Data.Linq.Provider.Query.SqlNode A_0) + 0x48 bytes
Devart.Data.Linq.dll!Devart.Data.Linq.Provider.Query.SqlVisitor.c(Devart.Data.Linq.Provider.Query.SqlExpression A_0) + 0x9 bytes
Devart.Data.Linq.dll!Devart.Data.Linq.Provider.Query.p.a.a(Devart.Data.Linq.Provider.Query.an A_0 = text = The name 'Text' does not exist in the current context,
source = The name 'SourceExpression' does not exist in the current context) + 0x21d bytes
Devart.Data.Linq.dll!Devart.Data.Linq.Provider.Query.SqlVisitor.a(Devart.Data.Linq.Provider.Query.SqlNode A_0) + 0x48 bytes
Devart.Data.Linq.dll!Devart.Data.Linq.Provider.Query.SqlVisitor.c(Devart.Data.Linq.Provider.Query.SqlExpression A_0) + 0x9 bytes
Devart.Data.Linq.dll!Devart.Data.Linq.Provider.Query.p.a.a(Devart.Data.Linq.Provider.Query.an A_0 = text = The name 'Text' does not exist in the current context,
source = The name 'SourceExpression' does not exist in the current context) + 0x21d bytes
Devart.Data.Linq.dll!Devart.Data.Linq.Provider.Query.SqlVisitor.a(Devart.Data.Linq.Provider.Query.SqlNode A_0) + 0x48 bytes
Devart.Data.Linq.dll!Devart.Data.Linq.Provider.Query.SqlVisitor.c(Devart.Data.Linq.Provider.Query.SqlExpression A_0) + 0x9 bytes
Devart.Data.Linq.dll!Devart.Data.Linq.Provider.Query.p.a.a(Devart.Data.Linq.Provider.Query.an A_0 = text = The name 'Text' does not exist in the current context,
source = The name 'SourceExpression' does not exist in the current context) + 0x21d bytes
Devart.Data.Linq.dll!Devart.Data.Linq.Provider.Query.SqlVisitor.a(Devart.Data.Linq.Provider.Query.SqlNode A_0) + 0x48 bytes
Devart.Data.Linq.dll!Devart.Data.Linq.Provider.Query.SqlVisitor.c(Devart.Data.Linq.Provider.Query.SqlExpression A_0) + 0x9 bytes
Devart.Data.Linq.dll!Devart.Data.Linq.Provider.Query.p.a.a(Devart.Data.Linq.Provider.Query.an A_0 = text = The name 'Text' does not exist in the current context,
source = The name 'SourceExpression' does not exist in the current context) + 0x21d bytes
Devart.Data.Linq.dll!Devart.Data.Linq.Provider.Query.SqlVisitor.a(Devart.Data.Linq.Provider.Query.SqlNode A_0) + 0x48 bytes
Devart.Data.Linq.dll!Devart.Data.Linq.Provider.Query.SqlVisitor.c(Devart.Data.Linq.Provider.Query.SqlExpression A_0) + 0x9 bytes
Devart.Data.Linq.dll!Devart.Data.Linq.Provider.Query.p.a.a(Devart.Data.Linq.Provider.Query.an A_0 = text = The name 'Text' does not exist in the current context,
source = The name 'SourceExpression' does not exist in the current context) + 0x21d bytes
Devart.Data.Linq.dll!Devart.Data.Linq.Provider.Query.SqlVisitor.a(Devart.Data.Linq.Provider.Query.SqlNode A_0) + 0x48 bytes
Devart.Data.Linq.dll!Devart.Data.Linq.Provider.Query.SqlVisitor.c(Devart.Data.Linq.Provider.Query.SqlExpression A_0) + 0x9 bytes
Devart.Data.Linq.dll!Devart.Data.Linq.Provider.Query.p.a.a(Devart.Data.Linq.Provider.Query.an A_0 = text = The name 'Text' does not exist in the current context,
source = The name 'SourceExpression' does not exist in the current context) + 0x21d bytes
Devart.Data.Linq.dll!Devart.Data.Linq.Provider.Query.SqlVisitor.a(Devart.Data.Linq.Provider.Query.SqlNode A_0) + 0x48 bytes
Devart.Data.Linq.dll!Devart.Data.Linq.Provider.Query.SqlVisitor.c(Devart.Data.Linq.Provider.Query.SqlExpression A_0) + 0x9 bytes
Devart.Data.Linq.dll!Devart.Data.Linq.Provider.Query.SqlVisitor.a(Devart.Data.Linq.Provider.Query.an A_0 = text = The name 'Text' does not exist in the current context,
source = The name 'SourceExpression' does not exist in the current context) + 0x16 bytes
Devart.Data.Linq.dll!Devart.Data.Linq.Provider.Query.p.a.a(Devart.Data.Linq.Provider.Query.an A_0) + 0x252 bytes
Devart.Data.Linq.dll!Devart.Data.Linq.Provider.Query.SqlVisitor.a(Devart.Data.Linq.Provider.Query.SqlNode A_0) + 0x48 bytes
Devart.Data.Linq.dll!Devart.Data.Linq.Provider.Query.SqlVisitor.c(Devart.Data.Linq.Provider.Query.SqlExpression A_0) + 0x9 bytes
Devart.Data.Linq.dll!Devart.Data.Linq.Provider.Query.p.a.a(Devart.Data.Linq.Provider.Query.an A_0 = text = The name 'Text' does not exist in the current context,
source = The name 'SourceExpression' does not exist in the current context) + 0x21d bytes
Devart.Data.Linq.dll!Devart.Data.Linq.Provider.Query.SqlVisitor.a(Devart.Data.Linq.Provider.Query.SqlNode A_0) + 0x48 bytes
Devart.Data.Linq.dll!Devart.Data.Linq.Provider.Query.SqlVisitor.c(Devart.Data.Linq.Provider.Query.SqlExpression A_0) + 0x9 bytes
Devart.Data.Linq.dll!Devart.Data.Linq.Provider.Query.p.a.a(Devart.Data.Linq.Provider.Query.an A_0 = text = The name 'Text' does not exist in the current context,
source = The name 'SourceExpression' does not exist in the current context) + 0x21d bytes
Devart.Data.Linq.dll!Devart.Data.Linq.Provider.Query.SqlVisitor.a(Devart.Data.Linq.Provider.Query.SqlNode A_0) + 0x48 bytes
Devart.Data.Linq.dll!Devart.Data.Linq.Provider.Query.SqlVisitor.c(Devart.Data.Linq.Provider.Query.SqlExpression A_0) + 0x9 bytes
Devart.Data.Linq.dll!Devart.Data.Linq.Provider.Query.p.a.a(Devart.Data.Linq.Provider.Query.an A_0 = text = The name 'Text' does not exist in the current context,
source = The name 'SourceExpression' does not exist in the current context) + 0x21d bytes
Devart.Data.Linq.dll!Devart.Data.Linq.Provider.Query.SqlVisitor.a(Devart.Data.Linq.Provider.Query.SqlNode A_0) + 0x48 bytes
Devart.Data.Linq.dll!Devart.Data.Linq.Provider.Query.SqlVisitor.c(Devart.Data.Linq.Provider.Query.SqlExpression A_0) + 0x9 bytes
Devart.Data.Linq.dll!Devart.Data.Linq.Provider.Query.SqlVisitor.a(Devart.Data.Linq.Provider.Query.an A_0 = text = The name 'Text' does not exist in the current context,
source = The name 'SourceExpression' does not exist in the current context) + 0x16 bytes
Devart.Data.Linq.dll!Devart.Data.Linq.Provider.Query.p.a.a(Devart.Data.Linq.Provider.Query.an A_0) + 0x252 bytes
Devart.Data.Linq.dll!Devart.Data.Linq.Provider.Query.SqlVisitor.a(Devart.Data.Linq.Provider.Query.SqlNode A_0) + 0x48 bytes
Devart.Data.Linq.dll!Devart.Data.Linq.Provider.Query.SqlVisitor.c(Devart.Data.Linq.Provider.Query.SqlExpression A_0) + 0x9 bytes
Devart.Data.Linq.dll!Devart.Data.Linq.Provider.Query.SqlVisitor.a(Devart.Data.Linq.Provider.Query.an A_0 = text = The name 'Text' does not exist in the current context,
source = The name 'SourceExpression' does not exist in the current context) + 0x16 bytes
Devart.Data.Linq.dll!Devart.Data.Linq.Provider.Query.p.a.a(Devart.Data.Linq.Provider.Query.an A_0) + 0x252 bytes
Devart.Data.Linq.dll!Devart.Data.Linq.Provider.Query.SqlVisitor.a(Devart.Data.Linq.Provider.Query.SqlNode A_0) + 0x48 bytes
Devart.Data.Linq.dll!Devart.Data.Linq.Provider.Query.SqlVisitor.c(Devart.Data.Linq.Provider.Query.SqlExpression A_0) + 0x9 bytes
Devart.Data.Linq.dll!Devart.Data.Linq.Provider.Query.p.a.a(Devart.Data.Linq.Provider.Query.an A_0 = text = The name 'Text' does not exist in the current context,
source = The name 'SourceExpression' does not exist in the current context) + 0x21d bytes
Devart.Data.Linq.dll!Devart.Data.Linq.Provider.Query.SqlVisitor.a(Devart.Data.Linq.Provider.Query.SqlNode A_0) + 0x48 bytes
Devart.Data.Linq.dll!Devart.Data.Linq.Provider.Query.SqlVisitor.c(Devart.Data.Linq.Provider.Query.SqlExpression A_0) + 0x9 bytes
Devart.Data.Linq.dll!Devart.Data.Linq.Provider.Query.SqlVisitor.a(Devart.Data.Linq.Provider.Query.an A_0 = text = The name 'Text' does not exist in the current context,
source = The name 'SourceExpression' does not exist in the current context) + 0x16 bytes
Devart.Data.Linq.dll!Devart.Data.Linq.Provider.Query.p.a.a(Devart.Data.Linq.Provider.Query.an A_0) + 0x252 bytes
Devart.Data.Linq.dll!Devart.Data.Linq.Provider.Query.SqlVisitor.a(Devart.Data.Linq.Provider.Query.SqlNode A_0) + 0x48 bytes
Devart.Data.Linq.dll!Devart.Data.Linq.Provider.Query.SqlVisitor.c(Devart.Data.Linq.Provider.Query.SqlExpression A_0) + 0x9 bytes
Devart.Data.Linq.dll!Devart.Data.Linq.Provider.Query.p.a.a(Devart.Data.Linq.Provider.Query.an A_0 = text = The name 'Text' does not exist in the current context,
source = The name 'SourceExpression' does not exist in the current context) + 0x21d bytes
Devart.Data.Linq.dll!Devart.Data.Linq.Provider.Query.SqlVisitor.a(Devart.Data.Linq.Provider.Query.SqlNode A_0) + 0x48 bytes
Devart.Data.Linq.dll!Devart.Data.Linq.Provider.Query.SqlVisitor.c(Devart.Data.Linq.Provider.Query.SqlExpression A_0) + 0x9 bytes
Devart.Data.Linq.dll!Devart.Data.Linq.Provider.Query.p.a.a(Devart.Data.Linq.Provider.Query.an A_0 = text = The name 'Text' does not exist in the current context,
source = The name 'SourceExpression' does not exist in the current context) + 0x21d bytes
Devart.Data.Linq.dll!Devart.Data.Linq.Provider.Query.SqlVisitor.a(Devart.Data.Linq.Provider.Query.SqlNode A_0) + 0x48 bytes
Devart.Data.Linq.dll!Devart.Data.Linq.Provider.Query.SqlVisitor.c(Devart.Data.Linq.Provider.Query.SqlExpression A_0) + 0x9 bytes
Devart.Data.Linq.dll!Devart.Data.Linq.Provider.Query.p.a.a(Devart.Data.Linq.Provider.Query.an A_0 = text = The name 'Text' does not exist in the current context,
source = The name 'SourceExpression' does not exist in the current context) + 0x21d bytes
Devart.Data.Linq.dll!Devart.Data.Linq.Provider.Query.SqlVisitor.a(Devart.Data.Linq.Provider.Query.SqlNode A_0) + 0x48 bytes
Devart.Data.Linq.dll!Devart.Data.Linq.Provider.Query.SqlVisitor.c(Devart.Data.Linq.Provider.Query.SqlExpression A_0) + 0x9 bytes
Devart.Data.Linq.dll!Devart.Data.Linq.Provider.Query.SqlVisitor.a(Devart.Data.Linq.Provider.Query.an A_0 = text = The name 'Text' does not exist in the current context,
source = The name 'SourceExpression' does not exist in the current context) + 0x16 bytes
Devart.Data.Linq.dll!Devart.Data.Linq.Provider.Query.p.a.a(Devart.Data.Linq.Provider.Query.an A_0) + 0x252 bytes
Devart.Data.Linq.dll!Devart.Data.Linq.Provider.Query.SqlVisitor.a(Devart.Data.Linq.Provider.Query.SqlNode A_0) + 0x48 bytes
Devart.Data.Linq.dll!Devart.Data.Linq.Provider.Query.SqlVisitor.c(Devart.Data.Linq.Provider.Query.SqlExpression A_0) + 0x9 bytes
Devart.Data.Linq.dll!Devart.Data.Linq.Provider.Query.p.a.a(Devart.Data.Linq.Provider.Query.an A_0 = text = The name 'Text' does not exist in the current context,
source = The name 'SourceExpression' does not exist in the current context) + 0x21d bytes
Devart.Data.Linq.dll!Devart.Data.Linq.Provider.Query.SqlVisitor.a(Devart.Data.Linq.Provider.Query.SqlNode A_0) + 0x48 bytes
Devart.Data.Linq.dll!Devart.Data.Linq.Provider.Query.SqlVisitor.c(Devart.Data.Linq.Provider.Query.SqlExpression A_0) + 0x9 bytes
Devart.Data.Linq.dll!Devart.Data.Linq.Provider.Query.SqlVisitor.a(Devart.Data.Linq.Provider.Query.an A_0 = text = The name 'Text' does not exist in the current context,
source = The name 'SourceExpression' does not exist in the current context) + 0x16 bytes
Devart.Data.Linq.dll!Devart.Data.Linq.Provider.Query.p.a.a(Devart.Data.Linq.Provider.Query.an A_0) + 0x252 bytes
Devart.Data.Linq.dll!Devart.Data.Linq.Provider.Query.SqlVisitor.a(Devart.Data.Linq.Provider.Query.SqlNode A_0) + 0x48 bytes
Devart.Data.Linq.dll!Devart.Data.Linq.Provider.Query.SqlVisitor.c(Devart.Data.Linq.Provider.Query.SqlExpression A_0) + 0x9 bytes
Devart.Data.Linq.dll!Devart.Data.Linq.Provider.Query.SqlVisitor.a(Devart.Data.Linq.Provider.Query.an A_0 = text = The name 'Text' does not exist in the current context,
source = The name 'SourceExpression' does not exist in the current context) + 0x16 bytes
Devart.Data.Linq.dll!Devart.Data.Linq.Provider.Query.p.a.a(Devart.Data.Linq.Provider.Query.an A_0) + 0x252 bytes
Devart.Data.Linq.dll!Devart.Data.Linq.Provider.Query.SqlVisitor.a(Devart.Data.Linq.Provider.Query.SqlNode A_0) + 0x48 bytes
Devart.Data.Linq.dll!Devart.Data.Linq.Provider.Query.SqlVisitor.c(Devart.Data.Linq.Provider.Query.SqlExpression A_0) + 0x9 bytes
Devart.Data.Linq.dll!Devart.Data.Linq.Provider.Query.p.a.a(Devart.Data.Linq.Provider.Query.an A_0 = text = The name 'Text' does not exist in the current context,
source = The name 'SourceExpression' does not exist in the current context) + 0x21d bytes
Devart.Data.Linq.dll!Devart.Data.Linq.Provider.Query.SqlVisitor.a(Devart.Data.Linq.Provider.Query.SqlNode A_0) + 0x48 bytes
Devart.Data.Linq.dll!Devart.Data.Linq.Provider.Query.SqlVisitor.c(Devart.Data.Linq.Provider.Query.SqlExpression A_0) + 0x9 bytes
Devart.Data.Linq.dll!Devart.Data.Linq.Provider.Query.p.a.a(Devart.Data.Linq.Provider.Query.an A_0 = text = The name 'Text' does not exist in the current context,
source = The name 'SourceExpression' does not exist in the current context) + 0x21d bytes
Devart.Data.Linq.dll!Devart.Data.Linq.Provider.Query.SqlVisitor.a(Devart.Data.Linq.Provider.Query.SqlNode A_0) + 0x48 bytes
Devart.Data.Linq.dll!Devart.Data.Linq.Provider.Query.SqlVisitor.c(Devart.Data.Linq.Provider.Query.SqlExpression A_0) + 0x9 bytes
Devart.Data.Linq.dll!Devart.Data.Linq.Provider.Query.p.a.a(Devart.Data.Linq.Provider.Query.an A_0 = text = The name 'Text' does not exist in the current context,
source = The name 'SourceExpression' does not exist in the current context) + 0x21d bytes
Devart.Data.Linq.dll!Devart.Data.Linq.Provider.Query.SqlVisitor.a(Devart.Data.Linq.Provider.Query.SqlNode A_0) + 0x48 bytes
Devart.Data.Linq.dll!Devart.Data.Linq.Provider.Query.SqlVisitor.c(Devart.Data.Linq.Provider.Query.SqlExpression A_0) + 0x9 bytes
Devart.Data.Linq.dll!Devart.Data.Linq.Provider.Query.SqlVisitor.a(Devart.Data.Linq.Provider.Query.an A_0 = text = The name 'Text' does not exist in the current context,
source = The name 'SourceExpression' does not exist in the current context) + 0x16 bytes
Devart.Data.Linq.dll!Devart.Data.Linq.Provider.Query.p.a.a(Devart.Data.Linq.Provider.Query.an A_0) + 0x252 bytes
Devart.Data.Linq.dll!Devart.Data.Linq.Provider.Query.SqlVisitor.a(Devart.Data.Linq.Provider.Query.SqlNode A_0) + 0x48 bytes
Devart.Data.Linq.dll!Devart.Data.Linq.Provider.Query.SqlVisitor.c(Devart.Data.Linq.Provider.Query.SqlExpression A_0) + 0x9 bytes
Devart.Data.Linq.dll!Devart.Data.Linq.Provider.Query.SqlVisitor.a(Devart.Data.Linq.Provider.Query.an A_0 = text = The name 'Text' does not exist in the current context,
source = The name 'SourceExpression' does not exist in the current context) + 0x16 bytes
Devart.Data.Linq.dll!Devart.Data.Linq.Provider.Query.p.a.a(Devart.Data.Linq.Provider.Query.an A_0) + 0x252 bytes
Devart.Data.Linq.dll!Devart.Data.Linq.Provider.Query.SqlVisitor.a(Devart.Data.Linq.Provider.Query.SqlNode A_0) + 0x48 bytes
Devart.Data.Linq.dll!Devart.Data.Linq.Provider.Query.SqlVisitor.c(Devart.Data.Linq.Provider.Query.SqlExpression A_0) + 0x9 bytes
Devart.Data.Linq.dll!Devart.Data.Linq.Provider.Query.p.a.a(Devart.Data.Linq.Provider.Query.an A_0 = text = The name 'Text' does not exist in the current context,
source = The name 'SourceExpression' does not exist in the current context) + 0x21d bytes
Devart.Data.Linq.dll!Devart.Data.Linq.Provider.Query.SqlVisitor.a(Devart.Data.Linq.Provider.Query.SqlNode A_0) + 0x48 bytes
Devart.Data.Linq.dll!Devart.Data.Linq.Provider.Query.SqlVisitor.c(Devart.Data.Linq.Provider.Query.SqlExpression A_0) + 0x9 bytes
Devart.Data.Linq.dll!Devart.Data.Linq.Provider.Query.p.a.a(Devart.Data.Linq.Provider.Query.an A_0 = text = The name 'Text' does not exist in the current context,
source = The name 'SourceExpression' does not exist in the current context) + 0x21d bytes
Devart.Data.Linq.dll!Devart.Data.Linq.Provider.Query.SqlVisitor.a(Devart.Data.Linq.Provider.Query.SqlNode A_0) + 0x48 bytes
Devart.Data.Linq.dll!Devart.Data.Linq.Provider.Query.SqlVisitor.c(Devart.Data.Linq.Provider.Query.SqlExpression A_0) + 0x9 bytes
Devart.Data.Linq.dll!Devart.Data.Linq.Provider.Query.SqlVisitor.e(Devart.Data.Linq.Provider.Query.bn A_0 = text = The name 'Text' does not exist in the current context,
source = The name 'SourceExpression' does not exist in the current context) + 0x32 bytes
Devart.Data.Linq.dll!Devart.Data.Linq.Provider.Query.p.a.a(Devart.Data.Linq.Provider.Query.bn A_0) + 0x51 bytes
Devart.Data.Linq.dll!Devart.Data.Linq.Provider.Query.SqlVisitor.a(Devart.Data.Linq.Provider.Query.ax A_0) + 0x41 bytes
Devart.Data.Linq.dll!Devart.Data.Linq.Provider.Query.p.a.a(Devart.Data.Linq.Provider.Query.ax A_0 = text = The name 'Text' does not exist in the current context,
source = The name 'SourceExpression' does not exist in the current context) + 0x48 bytes
Devart.Data.Linq.dll!Devart.Data.Linq.Provider.Query.SqlVisitor.a(Devart.Data.Linq.Provider.Query.SqlNode A_0) + 0x590 bytes
Devart.Data.Linq.dll!Devart.Data.Linq.Provider.Query.p.a(Devart.Data.Linq.Provider.Query.SqlNode A_0, Devart.Data.Linq.Provider.Query.SqlFactory A_1, Devart.Data.Linq.Provider.DataSourceInfo.TypeSystemProvider A_2, Devart.Data.Linq.Provider.Query.ao A_3) + 0x45 bytes
Devart.Data.Linq.dll!Devart.Data.Linq.Provider.DataProvider.a(Devart.Data.Linq.Provider.DataProvider.b A_0 = c, System.Type A_1, Devart.Data.Linq.Provider.Query.SqlNode A_2, System.Collections.Generic.IList A_3 = null) + 0x98 bytes
Devart.Data.Linq.dll!Devart.Data.Linq.Provider.DataProvider.a(System.Linq.Expressions.Expression A_0) + 0x90 bytes
Devart.Data.Linq.dll!Devart.Data.Linq.Provider.DataProvider.h(System.Linq.Expressions.Expression A_0) + 0x46 bytes



Please provide some help for a registered user...

Hello,

I'm trying to use the DevExpress Grid Linq Server Mode functionality along with the Devart DotConnect for Oracle provider. In short, DevEpxress provides a way to load data in a grid incrementally in server mode, using Linq to SQL classes.

I opened a ticket in DevExpress support and you can read all about it at : http://www.devexpress.com/Support/Center/p/Q202392.aspx

They came to the conclusion that there is a problem with the Devart provider.

I would be grateful if you examine the case and provide me with relevant feedback.

Thank you.