Script-Task to get all Dataflow-Element.Names in dtsx-Pakage

Hi,
Dataflow tasks are located on the control flow. It is possible to read
out all dataflow elements from the current dtsx package. I only need the
NAME of the Dataflow Tasks. I think it's the System :: SourceName?

I want to get this information in a script task => (Foreach DataflowElemtens on this.Pakage) { Get DF.Name } ...

Regards

Nicole