System.InvalidOperationException
occurred
HResult=0x80131509
Message=An exception occurred while reading a database
value for property 'Model__Artikel.dtEdit'. The expected type was
'System.DateTime' but the actual value was null.
Source=<Cannot evaluate the exception source>
StackTrace:
at
Microsoft.EntityFrameworkCore.Metadata.Internal.EntityMaterializerSource.ThrowReadValueException[TValue](Exception
exception, Object value, IPropertyBase property)
at
Microsoft.EntityFrameworkCore.Metadata.Internal.EntityMaterializerSource.TryReadValue[TValue](ValueBuffer
valueBuffer, Int32 index, IPropertyBase property)
at
Microsoft.EntityFrameworkCore.Query.ExpressionVisitors.Internal.UnbufferedEntityShaper`1.Shape(QueryContext
queryContext, ValueBuffer valueBuffer)
at
Microsoft.EntityFrameworkCore.Query.Internal.QueryingEnumerable`1.Enumerator.BufferlessMoveNext(Boolean
buffer)
at
Microsoft.EntityFrameworkCore.Storage.Internal.SqlServerExecutionStrategy.Execute[TState,TResult](TState
state, Func`3 operation, Func`3 verifySucceeded)
at
Microsoft.EntityFrameworkCore.Query.Internal.QueryingEnumerable`1.Enumerator.MoveNext()
at
Microsoft.EntityFrameworkCore.Query.Internal.LinqOperatorProvider.<_TrackEntities>d__17`2.MoveNext()
at
Microsoft.EntityFrameworkCore.Query.Internal.LinqOperatorProvider.ExceptionInterceptor`1.EnumeratorExceptionInterceptor.MoveNext()
at
System.Collections.Generic.List`1.AddEnumerable(IEnumerable`1 enumerable)
at
System.Linq.Enumerable.ToList[TSource](IEnumerable`1 source)
at
ArtikelWeb.Controllers.ArtikelController.Index() in
C:\_Daten\Desktop\VS_Projects\Web\Demo\ArtikelWeb\ArtikelWeb\Controllers\ArtikelController.cs:line
28
at
Microsoft.Extensions.Internal.ObjectMethodExecutor.Execute(Object target,
Object[] parameters)
at
Microsoft.AspNetCore.Mvc.Internal.ControllerActionInvoker.<InvokeActionMethodAsync>d__12.MoveNext()
Inner Exception 1:
NullReferenceException: Object reference not set to
an instance of an object.
|