I create a simple page based on your WebCombo configuration that mentioned in the attached file on your previous post.

I was unable to reproduce the issue using the simple sample. Please kindly modify my test sample so that issue is reproducible and then have the sample send back to us to be investigated further.

I suspect that the data duplication issue is caused by the AllowAutoQueryHandler property that being disabled. The default value of this property is True, which the WebCombo will perform automatic query handling.

With this property set to False, the WebCombo will not perform the automatic (default behavior) query handling. You need to write your own code for your specific data-retrieval scenario in InitializeDataSource event.

Hope this helps.

With this property set to False, the WebCombo will not perform the automatic (default behavior) query handling. You need to write your own code for your specific data-retrieval scenario in InitializeDataSource event.

Hope this helps.

With this property set to False, the WebCombo will not perform the automatic (default behavior) query handling. You need to write your own code for your specific data-retrieval scenario in InitializeDataSource event.

Hope this helps.