Create database works with new Vm

Refactoring

ModernKeePass/Views/UserControls/SetCredentialsUserControl.xaml.cs

@@ -0,0 +1,67 @@
+using System;
+using System.Collections.Generic;
+using Windows.Storage.AccessCache;
+using Windows.Storage.Pickers;
+using Windows.UI.Xaml;
+using ModernKeePass.ViewModels;
+
+// The User Control item template is documented at https://go.microsoft.com/fwlink/?LinkId=234236
+
+namespace ModernKeePass.Views.UserControls
+{
+    public sealed partial class SetCredentialsUserControl
+    {
+        private SetCredentialsViewModel Model => (SetCredentialsViewModel)Resources["ViewModel"];
+
+        public string ButtonLabel
+        {
+            get { return (string)GetValue(ButtonLabelProperty); }
+            set { SetValue(ButtonLabelProperty, value); }
+        }
+        public static readonly DependencyProperty ButtonLabelProperty =
+            DependencyProperty.Register(
+                nameof(ButtonLabel),
+                typeof(string),
+                typeof(SetCredentialsUserControl),
+                new PropertyMetadata("OK", (o, args) => { }));
+        
+        public SetCredentialsUserControl()
+        {
+            InitializeComponent();
+        }
+        
+        private async void KeyFileButton_Click(object sender, RoutedEventArgs e)
+        {
+            var picker =
+                new FileOpenPicker
+                {
+                    ViewMode = PickerViewMode.List,
+                    SuggestedStartLocation = PickerLocationId.DocumentsLibrary
+                };
+            picker.FileTypeFilter.Add(".key");
+
+            // Application now has read/write access to the picked file
+            var file = await picker.PickSingleFileAsync();
+            if (file == null) return;
+
+            var token = StorageApplicationPermissions.FutureAccessList.Add(file);
+            Model.KeyFilePath = token;
+        }
+
+        private async void CreateKeyFileButton_Click(object sender, RoutedEventArgs e)
+        {
+            var savePicker = new FileSavePicker
+            {
+                SuggestedStartLocation = PickerLocationId.DocumentsLibrary,
+                SuggestedFileName = "Key"
+            };
+            savePicker.FileTypeChoices.Add("Key file", new List<string> { ".key" });
+
+            var file = await savePicker.PickSaveFileAsync();
+            if (file == null) return;
+
+            var token = StorageApplicationPermissions.FutureAccessList.Add(file);
+            Model.KeyFilePath = token;
+        }
+    }
+}