Bug in QVX SDK 2.0

Mon, 26 Jan 2026 16:26:21 GMT

Problem:

We believe there is a bug in QvxSDK_2.0 library which does not allow us creating a custom connector.

Questions:

Is there any newer version of QvxSDK being prepared?

Has anyone already encountered this kind of problem?

Problem description:

To load data from our data source we call methods of a third party DLL COM-object.

1)It works without any problem in a standalone mode where we use exactly the same query as the one generated in QV script, and it addresses the same methods as those addressed from within QlikView:

...

internal class QvCustomConnection : QvxConnection

{

public override void Init()

{

...

MTables = new List<QvxTable>

{

new QvxTable

{

TableName = "Table1",

GetRows = GetTable1,

Fields = Table1Fields

}

};

...

2)But when running the connector from within QlikView it deadlocks in our GetTable1 method, precisely in the moment when we call any of our COM-object methods.

3)Moreover, when running the connector from within QlikView if we call our GetTable1 method ourselves directly in the Init() method, it works just fine.

Thus, we believe there is no bug in our custom code but there is one in the QvxSDK library itself.

Tested QlikView versions: all subversions of QlikView Desktop 11.

Re: Bug in QVX SDK 2.0

Alexander_Thor — Wed, 22 May 2013 15:52:11 GMT

Drop a bug report to support@qlik.com otherwise it won't get logged.

Stupid question, since you are instanciating COM-objects, are you running QV as administrator if you have UAC enabled? Also make sure you are running the correct 32/64-bit version of QV to match your COM-objects.

topic Re: Bug in QVX SDK 2.0 in QlikView

Bug in QVX SDK 2.0

Re: Bug in QVX SDK 2.0