Question

What does this icon mean is Visual studio, visual Data Set designer.
I have several stored procedures.

can you help me understand,

• why the one on top of the list has a
  small “check mark”
• why I can’t delete it if I need to.
• This is not the case with the rest.
  Why is this “special” ?

Thanks

Answer 1

Because that item contains the method(s) that define the schema of the table the TableAdapter is part of.

The default names are Fill and GetData. Looks like you renamed them.