Skip a Data Flow Component on Error

Question

I want to skip a component of my data flow task, when this component throws a specific error.

To be precise, I read data from different source files/connections in my dataflow and process them. The problem is that I can't be sure if all source files/connections will be found.

Instead of checking each source that I can connect to, I want to continue the execution of the data flow by skipping the component that reads data from the source.

Is there any possibility to continue the data flow after the component, which originally threw the error by jumping back from the On_Error-Eventhandler (of the data flow task) into the next component? Or is there any other way in continuing the data flow task execution by skipping the component?

Answer 1

As @praveen observed, out of the box you cannot disabled data flow components.

That said, I could see a use case for this, perhaps a secondary source that augments existing data which may or may not be available. If I had that specific need, then I'd need to write a script component which performs the data reading, parsing, casting of data types, etc when a file is present and sends nothing, but keeps the metadata in tact when no source is available.

Answer 2

You can do the following based on what I understand:

1) Create a script component that will check which source to go and check

2) Based on the Source connection you can assign the Source