Searching for Contact.LastName now possible

Gremlin/MVVM/MainWindow.xaml.cs

@@ -115,7 +115,7 @@ namespace Gremlin.MVVM
 
         private void BtnShowContactList_Click(object sender, RoutedEventArgs e)
         {
-            ObservableCollection<ContactViewModel> contacts = new(ShellViewModel.GetAllContactsVM());
+            ObservableCollection<ContactViewModel> contacts = new(ShellViewModel.GetContactsVM(""));
             dg_Test.ItemsSource = contacts;
         }
     }

Gremlin/MVVM/QuoteUI.xaml.cs

@@ -25,7 +25,7 @@ namespace Gremlin.MVVM
 
         private void LoadContacts()
         {
-            listCollectionContacts = new(ShellViewModel.GetAllContactsVM());
+            listCollectionContacts = new(ShellViewModel.GetContactsVM(""));
             listCollectionContacts.Filter = ContactViewModel.SearchContact(listCollectionContacts, tbContactSearch.Text);
             dgFoundContacts.ItemsSource = listCollectionContacts;
             UpdateUI();

Gremlin/MVVM/ViewModels/CustomDescriptionViewModel.cs

@@ -2,6 +2,7 @@
 using Gremlin.GremlinData.EntityClasses;
 using System.Diagnostics;
 using System.Linq;
+using System.Windows;
 
 namespace Gremlin.MVVM
 {
@@ -21,8 +22,7 @@ namespace Gremlin.MVVM
             {
                 tempOptionNumber = lineItemVM.OptionNumber == "" ? null : lineItemVM.OptionNumber;
                 CustomDescriptionViewModel customDescriptionVM = new();
-                CustomDescription customDescription = gremlinContext.CustomDescriptions.Where(cD => cD.ProductNumber == lineItemVM.ProductNumber && cD.OptionNumber == tempOptionNumber)
+                CustomDescription customDescription = gremlinContext.CustomDescriptions.Where(cD => cD.ProductNumber == lineItemVM.ProductNumber && cD.OptionNumber == tempOptionNumber).FirstOrDefault();
-                                                                                       .FirstOrDefault();
 
                 if (customDescription != null)
                 {
@@ -35,7 +35,7 @@ namespace Gremlin.MVVM
                 }
                 else
                 {
-                    Debug.WriteLine($"CustomDescription für {lineItemVM.ProductNumber}#{lineItemVM.OptionNumber} nicht vorhanden! Verwende (vorläufig) Standardbeschreibung {lineItemVM.SapShortDescription}!");
+                    MessageBox.Show($"CustomDescription für \"{lineItemVM.ProductNumber}#{lineItemVM.OptionNumber}\" nicht vorhanden! Verwende (vorläufig) Standardbeschreibung \"{lineItemVM.SapShortDescription}\"!");
                     customDescriptionVM.DescriptionText = TexReplace(lineItemVM.SapShortDescription);
                     customDescriptionVM.Heading = TexReplace(lineItemVM.SapShortDescription);
                 }

Gremlin/MVVM/ViewModels/ShellViewModel.cs

@@ -13,11 +13,21 @@ namespace Gremlin.MVVM
 {
     public class ShellViewModel : PropertyChangedBase
     {
-        //public AllContactsViewModel AllContactsVM { get; set; }
-
         private ContactViewModel _selectedContact;
         private ObservableCollection<ContactViewModel> _contacts;
         private QuoteViewModel _quoteVM;
+        private string _searchContact;
+
+        public string SearchContact
+        {
+            get => _searchContact;
+            set
+            {
+                _searchContact = value;
+                NotifyOfPropertyChange(() => SearchContact);
+                Contacts = GetContactsVM(_searchContact);
+            }
+        }
 
         public QuoteViewModel QuoteVM
         {
@@ -55,16 +65,19 @@ namespace Gremlin.MVVM
         {
             //AllContactsVM = new();
             QuoteVM = new();
-            Contacts = GetAllContactsVM();
+            Contacts = GetContactsVM("");
         }
 
-        internal static ObservableCollection<ContactViewModel> GetAllContactsVM()
+        internal static ObservableCollection<ContactViewModel> GetContactsVM(string searchContact)
         {
             try
             {
                 using (GremlinContext gremlinContext = new())
                 {
-                    List<Contact> contacts = gremlinContext.Contacts.Include(contact => contact.Account).ToList();
+                    List<Contact> contacts = searchContact is "" or null
+                        ? gremlinContext.Contacts.Include(contact => contact.Account).ToList()
+                        : gremlinContext.Contacts.Where(contact => contact.LastName.Contains(searchContact)).Include(contact => contact.Account).ToList();
+
                     ObservableCollection<ContactViewModel> contactsVM = new();
 
                     foreach (Contact contact in contacts)

Gremlin/MVVM/Views/ShellView.xaml

@@ -4,14 +4,14 @@
              xmlns:cal="http://www.caliburnproject.org"
              xmlns:local="clr-namespace:Gremlin.MVVM">
     <StackPanel Orientation="Vertical">
+        <TextBox x:Name="SearchContact" Margin="10,5,10,5"/>
         <DataGrid
             x:Name="Contacts"
             AutoGenerateColumns="True"
             FrozenColumnCount="3"
             SelectionMode="Single"
             SelectedItem="SelectedContact"
-                AlternatingRowBackground="LightGray"
+            MaxHeight="200"
-                Height="300"
             Width ="1280"
             Margin="10,5,10,5"
         />