XMLParser hinzugefügt

Database/Database.csproj

@@ -41,7 +41,14 @@
     <Reference Include="System.Xml" />
   </ItemGroup>
   <ItemGroup>
+    <Compile Include="Datenbank.cs" />
     <Compile Include="Properties\AssemblyInfo.cs" />
   </ItemGroup>
+  <ItemGroup>
+    <ProjectReference Include="..\KlassenBIB\KlassenBIB.csproj">
+      <Project>{c82bd650-466b-403f-bed9-2b1660771f54}</Project>
+      <Name>KlassenBIB</Name>
+    </ProjectReference>
+  </ItemGroup>
   <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
 </Project>

Database/Datenbank.cs

@@ -0,0 +1,40 @@
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Xaml;
+
+namespace Database
+{
+    public class Datenbank
+    {
+        public static readonly Datenbank instance = new Datenbank();
+        public static Datenbank Instance
+        {
+            get
+            {
+                return instance;
+            }
+        }
+
+        public KlassenBIB.Projekt loadedProjekt = null;
+
+        private string projektpfad = string.Empty;
+        public bool LoadProjekt(string filepath)
+        {
+            projektpfad = filepath;
+            if (File.Exists(filepath))
+                loadedProjekt = XamlServices.Load(filepath) as KlassenBIB.Projekt;
+            else
+                loadedProjekt = new KlassenBIB.Projekt();
+            return true;
+        }
+
+        public void SaveProjekt()
+        {
+            XamlServices.Save(projektpfad, loadedProjekt);
+        }
+    }
+}