netcore-winforms-demos/OutlookInspiredApp/DevExpress.OutlookInspiredApp/ViewModels/Employee/EmployeeContactsViewModel.cs

using System.Diagnostics;
using DevExpress.DevAV.Common.ViewModel;
using DevExpress.Mvvm;
using DevExpress.Mvvm.DataAnnotations;
using DevExpress.Mvvm.POCO;

namespace DevExpress.DevAV.ViewModels {
    public class EmployeeContactsViewModel : SingleObjectChildViewModel<Employee> {
        public new static EmployeeContactsViewModel Create() {
            return ViewModelSource.Create(() => new EmployeeContactsViewModel());
        }

        public EmployeeContactsViewModel() { }

        protected IMessageBoxService MessageBoxService { get { return this.GetRequiredService<IMessageBoxService>(); } }

        [Command]
        public void Message() {
            MessageBoxService.Show("Send an IM to: " + Entity.Skype);
        }
        public bool CanMessage() {
            return Entity != null && !string.IsNullOrEmpty(Entity.Skype);
        }
        [Command]
        public void Phone() {
            MessageBoxService.Show("Phone Call: " + Entity.MobilePhone);
        }
        public bool CanPhone() {
            return Entity != null && !string.IsNullOrEmpty(Entity.MobilePhone);
        }
        [Command]
        public void HomeCall() {
            MessageBoxService.Show("Home Call: " + Entity.HomePhone);
        }
        public bool CanHomeCall() {
            return Entity != null && !string.IsNullOrEmpty(Entity.HomePhone);
        }
        [Command]
        public void MobileCall() {
            MessageBoxService.Show("Mobile Call: " + Entity.MobilePhone);
        }
        public bool CanMobileCall() {
            return Entity != null && !string.IsNullOrEmpty(Entity.MobilePhone);
        }
        [Command]
        public void Call() {
            MessageBoxService.Show("Call: " + Entity.Skype);
        }
        public bool CanCall() {
            return Entity != null && !string.IsNullOrEmpty(Entity.Skype);
        }
        [Command]
        public void VideoCall() {
            MessageBoxService.Show("Video Call: " + Entity.Skype);
        }
        public bool CanVideoCall() {
            return Entity != null && !string.IsNullOrEmpty(Entity.Skype);
        }
        [Command]
        public void MailTo() {
            ExecuteMailTo(MessageBoxService, Entity.Email);
        }
        public bool CanMailTo() {
            return Entity != null && !string.IsNullOrEmpty(Entity.Email);
        }
        protected override void OnEntityChanged() {
            base.OnEntityChanged();
            this.RaiseCanExecuteChanged(x => x.Message());
            this.RaiseCanExecuteChanged(x => x.Phone());
            this.RaiseCanExecuteChanged(x => x.MobileCall());
            this.RaiseCanExecuteChanged(x => x.HomeCall());
            this.RaiseCanExecuteChanged(x => x.Call());
            this.RaiseCanExecuteChanged(x => x.VideoCall());
            this.RaiseCanExecuteChanged(x => x.MailTo());
        }
        public static void ExecuteMailTo(IMessageBoxService messageBoxService, string email) {
            if(Data.Utils.SafeProcess.Start("mailto://" + email) == null && messageBoxService != null)
                messageBoxService.Show("Mail To: " + email);
        }
    }
}