DevForce Community Forum : ModelExplorer - SL4

ModelExplorer - SL4 : Instead of DynamicTypeInfo(aType)...

Wed, 09 Jun 2010 08:28:43 -700

Author: smi-mark
Subject: 1869
Posted: 09-Jun-2010 at 8:28am

Instead of DynamicTypeInfo(aType) try DynamicTypeInfo.GetTypeInfo(Type type)

I find sometimes it's helpful to use Reflector when you get stuck. You can see that the constructor is now internal, so in Reflector you can right click it and go to Analyze, and see that it's called by DynamicTypeInfo.GetTypeInfo(), which seems to cache to improve performance

Edited by smi-mark - 09-Jun-2010 at 8:31am

ModelExplorer - SL4 : Thanks, that got me over that...

Wed, 09 Jun 2010 05:29:18 -700

Author: bigfish
Subject: 1869
Posted: 09-Jun-2010 at 5:29am

Thanks, that got me over that hurdle. There has been quite of lot of changes, like this one below too.

public static Type GetUltimateType(Type aType) {

if (null == aType)

return null;

// Get DynamicType conversion if Anonymous Type

return AnonymousFns.IsAnonymousType(aType) ? new DynamicTypeInfo(aType).DynamicType : aType;

}

DynamicTypeInfo no longer takes 1 argument in the constructor, but appears to be a more strongly typed constructor...

public DynamicTypeInfo(string typeName, IEnumerable<string> propertyNames, IEnumerable<Type> propertyTypes);

Any suggestions for a replacement please? I'm finding it hard to do the translation or even delve into the old Ideablade binaries...

ModelExplorer - SL4 : The problem is, it is no longer...

Tue, 08 Jun 2010 09:02:53 -700

Author: smi-mark
Subject: 1869
Posted: 08-Jun-2010 at 9:02am

The problem is, it is no longer a EntityQueriedEventArgs.

this.EntityManager.ExecuteQueryAsync(query, delegate (EntityQueryOperation args) {
                this.QueryCallback(args, callback);
            }, null);

private void QueryCallback(EntityQueryOperation args, Action callback)
        {

        }

ModelExplorer - SL4 : Ouch, line numbers went astray...

Tue, 08 Jun 2010 03:37:58 -700

Author: bigfish
Subject: 1869
Posted: 08-Jun-2010 at 3:37am

Ouch, line numbers went astray on post - sorry!

ModelExplorer - SL4 : The SL3 version of ModelExplorer...

Tue, 08 Jun 2010 03:36:58 -700

Author: bigfish
Subject: 1869
Posted: 08-Jun-2010 at 3:36am

The SL3 version of ModelExplorer included a sample Repository.cs

SL4 versions of DFSL break this on line 10 in RED after lines 16 and 17 were changed to reflect DFSL4 breaking changes doco.

Error is: The best overloaded method match for 'Infrastructure.Repository.QueryCallback(IdeaBlade.EntityModel.EntityQueriedEventArgs, System.Action)' has some invalid arguments.

Can you please give me a pointer as to what I could adjust here in my quest to move ModelExplorer to SL4.

protected void Query(IEntityQuery query, Action<IEnumerable> callback) {
if (null == query) {
QueryCallbackImpl(null, new List<object>() , callback );
return;
}
EntityManager.DefaultQueryStrategy = QueryStrategy.Normal;

try {
EntityManager.ExecuteQueryAsync(
query,
args => QueryCallback(args, callback),
null);
} catch (Exception e) {
QueryExceptionHandler(e, callback);
}
}
private void QueryCallback(EntityQueriedEventArgs args, Action<IEnumerable> callback) {
QueryCallbackImpl(args.Error, args.Results, callback);
}
private void QueryCallbackImpl(Exception e, IEnumerable result, Action<IEnumerable> callback) {
EntityManager.DefaultQueryStrategy = QueryStrategy.CacheOnly;

if (null != e) {
ReportError(e);
}
callback(result);
}