Es wird überprüft auf den Datenbank version

Database/Database.csproj

@@ -53,6 +53,10 @@
       <Project>{c82bd650-466b-403f-bed9-2b1660771f54}</Project>
       <Name>KlassenBIB</Name>
     </ProjectReference>
+    <ProjectReference Include="..\SanShared\SanShared.csproj">
+      <Project>{c949087e-20e1-4a17-b021-faead363c1d8}</Project>
+      <Name>SanShared</Name>
+    </ProjectReference>
   </ItemGroup>
   <ItemGroup>
     <None Include="packages.config" />

Database/Datenbank.cs

@@ -10,6 +10,7 @@ using System.Diagnostics;
 using ICSharpCode.SharpZipLib.Zip;
 using ICSharpCode.SharpZipLib.Core;
 using KlassenBIB;
+using SanShared.Exceptions;
 
 namespace Database
 {
@@ -40,7 +41,16 @@ namespace Database
             if (File.Exists(filepath))
             {
                 File.Copy(filepath, string.Format("{0}_{1}_{2}.bak", filepath,DateTime.Now.ToShortDateString(),DateTime.Now.Ticks));
-                loadedProjekt = XamlServices.Load(filepath) as KlassenBIB.Projekt;
+                try
+                {
+                    loadedProjekt = XamlServices.Load(filepath) as KlassenBIB.Projekt;
+                }
+                catch(XamlObjectWriterException ex)
+                {
+                    string msg = ex.Message;
+                    if (msg.ToLower().Contains("kann nicht festgelegt werden"))
+                        throw new DataBaseVersionMismatchException();
+                }
             }
             else
                 loadedProjekt = new KlassenBIB.Projekt();