Programmatically creating Transformation Script Component

Question

Does anyone have any examples of programmatically creating a Transformation Script Component (or Source/Destination) in the dataflow?  I have been able to create other Transforms for the dataflow like Derived Column, Sort, etc. but for some reason the Script Component doesn't seem to work the same way.
I have done it as below trying many ways to get the componentClassId including the AssemblyQualifiedname & the GUID as well.  No matter, what I do, when it hits the ProvideComponentProperties, it get Exception from HRESULT: 0xC0048021
IDTSComponentMetaData90 scriptPropType = dataFlow.ComponentMetaDataCollection.New();
scriptPropType.Name = "Transform Property Type";
scriptPropType.ComponentClassID = "DTSTransform.ScriptComponent";
// have also tried scriptPropType.ComponentClassID =typeof(Microsoft.SqlServer.Dts.Pipeline.ScriptComponent).AssemblyQualifiedName;
scriptPropType.Description = "Transform Property Type";
CManagedComponentWrapper instance2 = scriptPropType.Instantiate();
instance2.ProvideComponentProperties();
Any help or examples would be greatly appreciated!  Thanks!

Answer 1

I am working on the creating script component programmatically.
The code has been created is shown in the following,
Dim SourceCodeValue(3) As String
Dim scriptPropType As PipeLineWrapper.IDTSComponentMetaData90 = _
CType(CType(dataflowTask, TaskHost).InnerObject, PipeLineWrapper.MainPipe).ComponentMetaDataCollection.New()
scriptPropType.Name = "Transform Property Type"
scriptPropType.ComponentClassID = "{BF01D463-7089-41EE-8F05-0A6DC17CE633}"
scriptPropType.Description = "Transform Property Type"
Dim instance2 As PipeLineWrapper.CManagedComponentWrapper = scriptPropType.Instantiate()
instance2.ProvideComponentProperties()
SourceCodeValue(0) = "dts://Scripts/" & "ScriptComponent_9ddf9eba6f5b488f9710b95e4d7e7c74" & _
"/" & "ScriptComponent_9ddf9eba6f5b488f9710b95e4d7e7c74" & ".vsaproj"
SourceCodeValue(1) = My.Resources.ScriptComponentProjFile
SourceCodeValue(2) = "dts://Scripts/" & "ScriptComponent_9ddf9eba6f5b488f9710b95e4d7e7c74" & _
"/ScriptMain.vsaitem"
SourceCodeValue(3) = My.Resources.ScriptComponentCode
Dim anIDTSDesigntimeComponent90 As Microsoft.SqlServer.Dts.Pipeline.Wrapper.IDTSDesigntimeComponent90 = _
CType(instance2, Microsoft.SqlServer.Dts.Pipeline.Wrapper.IDTSDesigntimeComponent90)
anIDTSDesigntimeComponent90.SetComponentProperty("SourceCode", SourceCodeValue)
anIDTSDesigntimeComponent90.SetComponentProperty("PreCompile", False)
When debugger reach to “anIDTSDesigntimeComponent90.SetComponentProperty("SourceCode", scriptValue)”, NullReferenceException. “Use the “New” keyword to create an object instance” was shown.
Could you please give me some help or suggestion?
Thank you so much in the advance