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Member	agerace-ag.state.oh - 12/1/2009 10:39:04 AM CustomEventHandler OnBeforeInsert Question What do I cast the DataObject to? It seems sometimes its a SimpleDataClass sometimes its a DataClass, if I don't have the right one I get invalid cast. How should I be accessing the DataObject in the CustomEventHandler OnBeforeInsert method?

Member

agerace-ag.state.oh - 12/1/2009 12:56:43 PM

RE:CustomEventHandler OnBeforeInsert Question

Never mind I figured it out.

Here it is in case anyone else is interested.

 
//Get the Type
Type T = dataObj.GetType();

if (T.Name == "SimpleDataClass")
 {
       SimpleDataClass InsertDataObject = (SimpleDataClass)dataObj;
       if (InsertDataObject.ClassName == "Forums.ForumPost")
                    //Do what you want with a new forum post.
 }


Kentico Developer	kentico_zbysekn - 12/1/2009 2:00:20 PM RE:CustomEventHandler OnBeforeInsert Question Hello, yes this should be good solution how you can handle this kind of data. Thank you for posting the example. Best Regards, Zbysek Nemec.


Member	Scott - 1/20/2010 11:41:16 PM RE:CustomEventHandler OnBeforeInsert Question You can possibly also cast it as IDataClass, which both DataClass and SimpleDataClass implement -- depends on what you need, but if you just need the interface methods, it's easier that checking the type.


Member	Scott - 1/20/2010 11:47:52 PM RE:CustomEventHandler OnBeforeInsert Question Is there any documentation describing when it will be a DataClass or when it will be a SimpleDataClass? What is the difference between the two?

Kentico Developer

kentico_martind - 1/21/2010 8:55:48 AM

RE:CustomEventHandler OnBeforeInsert Question

Hi Scott,

Regrettably, this is not described in documentation. The solution is described in DataObj parameter in CustomHandler seems to be of type SimpleDataClass not DataClass article. Basically the SimpleDataClass class is more efficient as it doesn't store data in DataRow and it is used by default, but sometimes there is DataRow required so in this case the DataClass object is used as it contains data in DataRow.

Best Regards,

Martin Dobsicek

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