Upgrading 6.0.1 to 7.3.1: WorkBookDesigner.SetDataSource() fails

Scenario: add SetDataSource(DataSet) twice, each of the DataSets has a DataTable of customers, the DataTable has a different name.

6.0.1: worked fine

7.3.1: Exception

Test method Nirvana.Reporting.Engines.Aspose.Tests.Cells.AsposeCellsEngineTests.Execute_Report_NoTemplate_TemplateTypeDesigner_FormatXLS_ReturnsEmptySpreadSheet threw exception:
Nirvana.Reporting.Core.ReportExecutionException: An error occured executing report 'CustomerList' ---> System.ArgumentException: Item has already been added. Key in dictionary: 'PHONENUMBERS' Key being added: 'PHONENUMBERS'

System.Collections.Hashtable.Insert(Object key, Object nvalue, Boolean add)
System.Collections.Hashtable.Add(Object key, Object value)
Aspose.Cells.WorkbookDesigner.SetDataSource(DataTable dataTable)
Nirvana.Reporting.Engines.Aspose.Cells.AsposeCellsEngine.AssignDataSourcesToWorkbookDesigner(IReport report, WorkbookDesigner designer) in C:\Workspaces\ja38524\KBC.ServiceOrganisation\Framework\Trunk\Source\Nirvana.Solution\Nirvana.Reporting.Engines.Aspose\Cells\AsposeCellsEngine.cs: line 344
Nirvana.Reporting.Engines.Aspose.Cells.AsposeCellsEngine.ExecuteDesignerReport(IReport report) in C:\Workspaces\ja38524\KBC.ServiceOrganisation\Framework\Trunk\Source\Nirvana.Solution\Nirvana.Reporting.Engines.Aspose\Cells\AsposeCellsEngine.cs: line 298
Nirvana.Reporting.Engines.Aspose.Cells.AsposeCellsEngine.Execute(Guid reportInstanceId, IReport report) in C:\Workspaces\ja38524\KBC.ServiceOrganisation\Framework\Trunk\Source\Nirvana.Solution\Nirvana.Reporting.Engines.Aspose\Cells\AsposeCellsEngine.cs: line 103
Nirvana.Reporting.Engines.Aspose.Cells.AsposeCellsEngine.Execute(Guid reportInstanceId, IReport report) in C:\Workspaces\ja38524\KBC.ServiceOrganisation\Framework\Trunk\Source\Nirvana.Solution\Nirvana.Reporting.Engines.Aspose\Cells\AsposeCellsEngine.cs: line 120
Nirvana.Reporting.Engines.Aspose.Tests.Cells.AsposeCellsEngineTests.Execute_Report_NoTemplate_TemplateTypeDesigner_FormatXLS_ReturnsEmptySpreadSheet() in C:\Workspaces\ja38524\KBC.ServiceOrganisation\Framework\Trunk\Source\Nirvana.Solution\Nirvana.Reporting.Engines.Aspose.Tests\Cells\AsposeCellsEngineTest.cs: line 188

How can I solve?

Hi,

Thanks for your posting and using Aspose.Cells for .NET.

Please download and use the latest version:
Aspose.Cells
for .NET v7.3.1.1
and see if it fixes your issue.

If the problem still occurs, then please provide us your runnable application replicating this issue.

We will soon look into it and help you asap.