No, charity is helping someone and expecting nothing from them in return.
My church, which is located in a neighborhood that is largely below the poverty line, feeds breakfast to high school kids in the gymnasium every morning. There is no preaching, no lesson. Just breakfast. And probably 95% of those kids never set foot in the church otherwise.
But that's OK, because they're not doing it to get them to come to church. They're doing it because it's the right thing to do.