Custom Component: How Can I Have Two Input Datasources?

Hi all. Can you help me? I'm trying to build a custom component that recieves two datasources (like for instance the union all) . I first started by adding a new IDTSInput90 in the ProvideComponentProperties, but when I tried to use the component I got an error that has very helpful :

===================================

The component could not be added to the Data Flow task.
Could not initialize the component. There is a potential problem in the ProvideComponentProperties method. (Microsoft Visual Studio)

===================================

Error at Data Flow Task [Replica Transformation [1289]]: System.Runtime.InteropServices.COMException (0xC0048004): Exception from HRESULT: 0xC0048004
at Microsoft.SqlServer.Dts.Pipeline.Wrapper.IDTSOutputCollection90.get_Item(Object Index)
at MyCustomSSISComponent.SampleComponentComponent.ProvideComponentProperties()
at Microsoft.SqlServer.Dts.Pipeline.ManagedComponentHost.HostProvideComponentProperties(IDTSManagedComponentWrapper90 wrapper)


===================================

Exception from HRESULT: 0xC0048004 (Microsoft.SqlServer.DTSPipelineWrap)

------------------------------
Program Location:

at Microsoft.SqlServer.Dts.Pipeline.ManagedComponentHost.HandleUserException(Exception e)
at Microsoft.SqlServer.Dts.Pipeline.ManagedComponentHost.HostProvideComponentProperties(IDTSManagedComponentWrapper90 wrapper)
at Microsoft.SqlServer.Dts.Pipeline.Wrapper.CManagedComponentWrapperClass.ProvideComponentProperties()
at Microsoft.DataTransformationServices.Design.PipelineTaskDesigner.AddNewComponent(String clsid, Boolean throwOnError)

This is my ProvideComponentProperties:





Code Snippet

public override void ProvideComponentProperties()
{
RemoveAllInputsOutputsAndCustomProperties();

ComponentMetaData.UsesDispositions = true;

IDTSInput90 input = ComponentMetaData.InputCollection.New();
input.Name = "Staging Data";
input.ErrorRowDisposition = DTSRowDisposition.RD_FailComponent;

IDTSInput90 input2 = ComponentMetaData.InputCollection.New();
input2.Name = "Replica Data";
input2.ErrorRowDisposition = DTSRowDisposition.RD_FailComponent;

// Add the output
IDTSOutput90 output = ComponentMetaData.OutputCollection.New();
output.Name = "Replica Output";
output.SynchronousInputID = input.ID;
output.ExclusionGroup = 1;

// Add the error output
AddErrorOutput("StagingErrorOutput", input.ID, output.ExclusionGroup);

// Adds columns
AddXmlColumn();

IDTSOutputColumn90 column0 = ComponentMetaData.OutputCollection[1].OutputColumnCollection.New();
column0.Name = m_SyncStatusColumnName;
column0.SetDataTypeProperties(DataType.DT_STR, 1, 0, 0, 1252);

IDTSOutputColumn90 column1 = ComponentMetaData.OutputCollection[2].OutputColumnCollection.New();
column1.Name = m_AS400ImportedDateColumnName;
column1.SetDataTypeProperties(DataType.DT_DATE, 0, 0, 0, 0);

}

Since I'm new to SSIS I'm following Josh's SSIS Xmlify Data Flow Task sample.

Thanks.