How to avoid redundant second query to database with using MVVM pattern?

I'm not sure I'd bind the property directly to a database operation in the first place. Why not have a local List.

Like Jon already mentioned, accessing properties are expected to be cheap, something you can do a thousand times without any sideeffect.

I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.

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