This is my List:

List(0..<viewModel.databases.count) { item in
    Text("item \(self.viewModel.databases[item].name)")
}

When I print(viewModel.databases.count) I am getting 4, which is right, but unable to display in List.

When button is clicked I am appending 4 items:

Button("Test") {
    let db: Database = Database()
    db.name = "test"
    var newDBS: [Database] = []
    newDBS.append(db)
    newDBS.append(db)
    newDBS.append(db)
    newDBS.append(db)
    self.viewModel.databases = newDBS
}

And this is my observable:

import Combine

class DatabaseObservable: ObservableObject {
    var objectWillChange = PassthroughSubject<Void, Never>()

    init() {
        databases = []
    }

    @Published var databases: [Database] = [] {
        didSet {
            objectWillChange.send()
        }
    }
}

hi,

i'm inferring that your view model keeps a list of databases, and you want to list those databases by name. the following seems to do it, without explicitly resorting to supplying a lot of code from Combine. i've also added a few things to your viewModel to make the ContentView code a little easier; and the button adds just one database at a time.

import SwiftUI

class Database {
    var name: String = ""
}

class ViewModel: ObservableObject {
    @Published var databases: [Database] = []

    var databaseCount: Int { databases.count }

    func name(at index: Int) -> String {
        return databases[index].name
    }

    func append(database: Database) {
        databases.append(database)
    }
}

struct ContentView: View {

    @ObservedObject var viewModel: ViewModel = ViewModel()

    var body: some View {
        VStack {
            Button("Add a new database") {
                let db = Database()
                db.name = "test"
                self.viewModel.append(database: db)
            }

            Text("Database count is \(viewModel.databaseCount)")

            List(0..<viewModel.databaseCount, id: \.self) { index in
                Text("item \(self.viewModel.name(at: index))")
            }

        }
    }
}

hope that helps,

DMG