OHV/Dev/OHV/OHV.Module.Interactivity/NotificationViewModel.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using Prism.Commands;
using Prism.Mvvm;
using Prism.Services.Dialogs;

namespace OHV.Module.Interactivity
{
    public class NotificationViewModel : BindableBase, IDialogAware
    {
        private Visibility errorVisibillity;
        public Visibility ErrorVisibillity
        {
            get { return errorVisibillity; }
            set { if (SetProperty(ref this.errorVisibillity, value)){ } }

        }
        private Visibility okVisibillity;
        public Visibility OKVisibillity
        {
            get { return okVisibillity; }
            set { if (SetProperty(ref this.okVisibillity, value)) { } }
        }

        private DelegateCommand<string> _closeDialogCommand;
        public DelegateCommand<string> CloseDialogCommand =>
            _closeDialogCommand ?? (_closeDialogCommand = new DelegateCommand<string>(CloseDialog));

        private string _message;
        public string Message
        {
            get { return _message; }
            set { SetProperty(ref _message, value); }
        }

        private string _title = "Notification";
        public string Title
        {
            get { return _title; }
            set { SetProperty(ref _title, value); }
        }

        public event Action<IDialogResult> RequestClose;

        public NotificationViewModel()
        {
        }

        protected virtual void CloseDialog(string parameter)
        {
            ButtonResult result = ButtonResult.None;

            if (parameter?.ToLower() == "true")
                result = ButtonResult.OK;
            else if (parameter?.ToLower() == "false")
                result = ButtonResult.Cancel;

            RaiseRequestClose(new DialogResult(result));
        }

        public virtual void RaiseRequestClose(IDialogResult dialogResult)
        {
            RequestClose?.Invoke(dialogResult);
        }

        public bool CanCloseDialog()
        {
            return true;
        }

        public void OnDialogClosed()
        {
        }

        public void OnDialogOpened(IDialogParameters parameters)
        {
            Message = parameters.GetValue<string>("message");

            var isOK = parameters.GetValue<bool>("Type");
            if (isOK)
            {
                this.ErrorVisibillity = Visibility.Hidden;
                this.OKVisibillity = Visibility.Visible; 
            }
            else
            {
                this.ErrorVisibillity = Visibility.Visible;
                this.OKVisibillity = Visibility.Hidden;
            }
        }
    }
}