umbraco 8 contentservice and dropdown list

Thomas 6 posts 87 karma points c-trib

Mar 07, 2019 @ 07:18

Umbraco 8 - ContentService and dropdown list

Hi,

I am using Umbraco 8 and I am having an issue with the ContentService. The problem happens when I set in a new node a dropdown list value.

I use the following code to set the value in my new node:

IContentService contentService = Services.ContentService;

var newPersonNode = contentService.Create(
                        $"{person.FirstName} {person.LastName}",
                        personContainerNode.Id,
                        "TDPerson",
                        0);
personNodeFound.SetValue("TDPersonType", "Option1");

contentService.SaveAndPublish(newPersonNode);

There is no error after the SaveAndPublish.

But when I log into umbraco and go to the newly created node I get the following error:

An error occured
Error mapping types.

 Mapping types:
 IContent -> ContentItemDisplay
 Umbraco.Core.Models.IContent -> Umbraco.Web.Models.ContentEditing.ContentItemDisplay

 Type Map configuration:
 IContent -> ContentItemDisplay
 Umbraco.Core.Models.IContent -> Umbraco.Web.Models.ContentEditing.ContentItemDisplay

 Destination Member:
 Variants

Exception Details
AutoMapper.AutoMapperMappingException: Error mapping types.

 Mapping types:
 IContent -> ContentItemDisplay
 Umbraco.Core.Models.IContent -> Umbraco.Web.Models.ContentEditing.ContentItemDisplay

 Type Map configuration:
 IContent -> ContentItemDisplay
 Umbraco.Core.Models.IContent -> Umbraco.Web.Models.ContentEditing.ContentItemDisplay

 Destination Member:
 Variants
```

Stacktrace:

```
at lambda_method(Closure , Content , ContentItemDisplay , ResolutionContext )
   at lambda_method(Closure , Object , Object , ResolutionContext )
   at Umbraco.Web.Editors.ContentController.MapToDisplay(IContent content)
   at Umbraco.Web.Editors.ContentController.GetById(Int32 id)
   at lambda_method(Closure , Object , Object[] )
   at System.Web.Http.Controllers.ReflectedHttpActionDescriptor.ActionExecutor.<>c__DisplayClass6_2.<GetExecutor>b__2(Object instance, Object[] methodParameters)
   at System.Web.Http.Controllers.ReflectedHttpActionDescriptor.ActionExecutor.Execute(Object instance, Object[] arguments)
   at System.Web.Http.Controllers.ReflectedHttpActionDescriptor.ExecuteAsync(HttpControllerContext controllerContext, IDictionary`2 arguments, CancellationToken cancellationToken)
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at System.Web.Http.Controllers.ApiControllerActionInvoker.<InvokeActionAsyncCore>d__1.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at System.Web.Http.Filters.ActionFilterAttribute.<CallOnActionExecutedAsync>d__6.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Web.Http.Filters.ActionFilterAttribute.<CallOnActionExecutedAsync>d__6.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at System.Web.Http.Filters.ActionFilterAttribute.<ExecuteActionFilterAsyncCore>d__5.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at System.Web.Http.Filters.ActionFilterAttribute.<CallOnActionExecutedAsync>d__6.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Web.Http.Filters.ActionFilterAttribute.<CallOnActionExecutedAsync>d__6.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at System.Web.Http.Filters.ActionFilterAttribute.<ExecuteActionFilterAsyncCore>d__5.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at System.Web.Http.Filters.ActionFilterAttribute.<CallOnActionExecutedAsync>d__6.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Web.Http.Filters.ActionFilterAttribute.<CallOnActionExecutedAsync>d__6.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at System.Web.Http.Filters.ActionFilterAttribute.<ExecuteActionFilterAsyncCore>d__5.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at System.Web.Http.Filters.ActionFilterAttribute.<CallOnActionExecutedAsync>d__6.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Web.Http.Filters.ActionFilterAttribute.<CallOnActionExecutedAsync>d__6.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at System.Web.Http.Filters.ActionFilterAttribute.<ExecuteActionFilterAsyncCore>d__5.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at System.Web.Http.Filters.ActionFilterAttribute.<CallOnActionExecutedAsync>d__6.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Web.Http.Filters.ActionFilterAttribute.<CallOnActionExecutedAsync>d__6.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at System.Web.Http.Filters.ActionFilterAttribute.<ExecuteActionFilterAsyncCore>d__5.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at System.Web.Http.Filters.ActionFilterAttribute.<CallOnActionExecutedAsync>d__6.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Web.Http.Filters.ActionFilterAttribute.<CallOnActionExecutedAsync>d__6.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at System.Web.Http.Filters.ActionFilterAttribute.<ExecuteActionFilterAsyncCore>d__5.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at System.Web.Http.Filters.ActionFilterAttribute.<CallOnActionExecutedAsync>d__6.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Web.Http.Filters.ActionFilterAttribute.<CallOnActionExecutedAsync>d__6.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at System.Web.Http.Filters.ActionFilterAttribute.<ExecuteActionFilterAsyncCore>d__5.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at System.Web.Http.Filters.ActionFilterAttribute.<CallOnActionExecutedAsync>d__6.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Web.Http.Filters.ActionFilterAttribute.<CallOnActionExecutedAsync>d__6.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at System.Web.Http.Filters.ActionFilterAttribute.<ExecuteActionFilterAsyncCore>d__5.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at System.Web.Http.Controllers.ActionFilterResult.<ExecuteAsync>d__5.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at System.Web.Http.Filters.AuthorizationFilterAttribute.<ExecuteAuthorizationFilterAsyncCore>d__3.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at System.Web.Http.Filters.AuthorizationFilterAttribute.<ExecuteAuthorizationFilterAsyncCore>d__3.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at System.Web.Http.Filters.AuthorizationFilterAttribute.<ExecuteAuthorizationFilterAsyncCore>d__3.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at System.Web.Http.Filters.AuthorizationFilterAttribute.<ExecuteAuthorizationFilterAsyncCore>d__3.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at System.Web.Http.Controllers.ExceptionFilterResult.<ExecuteAsync>d__6.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Web.Http.Controllers.ExceptionFilterResult.<ExecuteAsync>d__6.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at System.Web.Http.Dispatcher.HttpControllerDispatcher.<SendAsync>d__15.MoveNext()

Inner Exception
AutoMapper.AutoMapperMappingException: Error mapping types.

 Mapping types:
 IContent -> ContentVariantDisplay
 Umbraco.Core.Models.IContent -> Umbraco.Web.Models.ContentEditing.ContentVariantDisplay

 Type Map configuration:
 IContent -> ContentVariantDisplay
 Umbraco.Core.Models.IContent -> Umbraco.Web.Models.ContentEditing.ContentVariantDisplay

 Destination Member:
 Tabs
at lambda_method(Closure , Content , ContentVariantDisplay , ResolutionContext )
   at lambda_method(Closure , Object , Object , ResolutionContext )
   at Umbraco.Web.Models.Mapping.ContentVariantResolver.Resolve(IContent source, ContentItemDisplay destination, IEnumerable`1 destMember, ResolutionContext context)
   at lambda_method(Closure , Content , ContentItemDisplay , ResolutionContext )
Inner Exception
AutoMapper.AutoMapperMappingException: Error mapping types.

 Mapping types:
 IEnumerable`1 -> IEnumerable`1
 System.Collections.Generic.IEnumerable`1[[Umbraco.Core.Models.Property, Umbraco.Core, Version=8.0.0.0, Culture=neutral, PublicKeyToken=null]] -> System.Collections.Generic.IEnumerable`1[[Umbraco.Web.Models.ContentEditing.ContentPropertyDisplay, Umbraco.Web, Version=8.0.0.0, Culture=neutral, PublicKeyToken=null]]
at lambda_method(Closure , IEnumerable`1 , IEnumerable`1 , ResolutionContext )
   at Umbraco.Web.Models.Mapping.TabsAndPropertiesResolver.MapProperties(IContentBase content, List`1 properties, ResolutionContext context)
   at Umbraco.Web.Models.Mapping.TabsAndPropertiesResolver`2.Resolve(TSource source, TDestination destination, IEnumerable`1 destMember, ResolutionContext context)
   at lambda_method(Closure , Content , ContentVariantDisplay , ResolutionContext )
Inner Exception
Newtonsoft.Json.JsonReaderException: Unexpected character encountered while parsing value: P. Path '', line 0, position 0.
at Newtonsoft.Json.JsonTextReader.ParseValue() in /_/Src/Newtonsoft.Json/JsonTextReader.cs:line 1706
   at Newtonsoft.Json.JsonTextReader.Read() in /_/Src/Newtonsoft.Json/JsonTextReader.cs:line 419
   at Newtonsoft.Json.JsonReader.ReadForType(JsonContract contract, Boolean hasConverter) in /_/Src/Newtonsoft.Json/JsonReader.cs:line 1195
   at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.Deserialize(JsonReader reader, Type objectType, Boolean checkAdditionalContent) in /_/Src/Newtonsoft.Json/Serialization/JsonSerializerInternalReader.cs:line 196
   at Newtonsoft.Json.JsonSerializer.DeserializeInternal(JsonReader reader, Type objectType) in /_/Src/Newtonsoft.Json/JsonSerializer.cs:line 907
   at Newtonsoft.Json.JsonConvert.DeserializeObject(String value, Type type, JsonSerializerSettings settings) in /_/Src/Newtonsoft.Json/JsonConvert.cs:line 828
   at Newtonsoft.Json.JsonConvert.DeserializeObject[T](String value, JsonSerializerSettings settings) in /_/Src/Newtonsoft.Json/JsonConvert.cs:line 786
   at Umbraco.Web.PropertyEditors.MultipleValueEditor.ToEditor(Property property, IDataTypeService dataTypeService, String culture, String segment)
   at Umbraco.Web.Models.Mapping.ContentPropertyBasicConverter`1.Convert(Property property, TDestination dest, ResolutionContext context)
   at Umbraco.Web.Models.Mapping.ContentPropertyDisplayConverter.Convert(Property originalProp, ContentPropertyDisplay dest, ResolutionContext context)
   at lambda_method(Closure , IEnumerable`1 , IEnumerable`1 , ResolutionContext )

I thinks I should set the value of the dropdown list differently but I cannot find how.

Thank you in advance for your help,

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John McKillip 33 posts 116 karma points

Apr 18, 2019 @ 15:12

Hi. Not sure about the stack trace you have there, but, one thing that looks like a mistake is when you are calling contentService.Create. The second parameter for parentId is looking for a Udi not an integer. This looks to be a change from v7 to v8. To get the Udi, there is an extension for IContent called GetUdi() that you can use.

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Sean Maloney 5 posts 79 karma points

May 06, 2019 @ 13:05

Hi Thomas,

I had the same issue and error - I think I've managed to figure it out.

You need to set the value as a serialized string array. The value should contain the string value of the Pre Value (you don't have to look up the Pre Value ID like in Umbraco 7).

For example:

var existingValue = (string) property.GetValue();
var newValue = JsonConvert.SerializeObject(new[] { (string) value });

if (existingValue != newValue)
{
    content.SetValue(propertyName, newValue);
}

Hope that helps, Sean.

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Christoffer Frede 35 posts 145 karma points

May 26, 2020 @ 13:38

Hi Sean. just browsed our, for a solution for this and your solution worked out for me. thanks a ton :-) best regards Christoffer

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Umbraco 8 - ContentService and dropdown list