Channel 9 Forums - Tech Off - Convert ArrayList (of Objects) to DataSet http://mschnlnine.vo.llnwd.net/d1/Dev/App_Themes/C9/images/feedimage.png Channel 9 Forums - Tech Off - Convert ArrayList (of Objects) to DataSet http://channel9.msdn.com/Forums Channel 9 keeps you up to date with the latest news and behind the scenes info from Microsoft that developers love to keep up with. From LINQ to SilverLight – Watch videos and hear about all the cool technologies coming and the people behind them. http://channel9.msdn.com/Forums en Fri, 24 May 2013 16:53:50 GMT Fri, 24 May 2013 16:53:50 GMT Rev9 9 -9 -1 Tech Off - Convert ArrayList (of Objects) to DataSet I'm using NHibernate to access the database.
NHibernate has a function to get a list of all elements of a persisted class (select * from table).

The list it returns is an arraylist of objects of that persisted class, but I want to convert that arraylist to a dataset

I tried to XmlSerialize the arraylist but it keeps failing (Type not expected)
Binary serializing works but then I can't deserialize to a DataSet

I hope you guys can help me out it's drivin' me nuts !!

]]> http://channel9.msdn.com/Forums/TechOff/44043-Convert-ArrayList-of-Objects-to-DataSet/44043#44043 Thu, 03 Mar 2005 10:57:37 GMT http://channel9.msdn.com/Forums/TechOff/44043-Convert-ArrayList-of-Objects-to-DataSet/44043#44043 DiViNO 9 http://channel9.msdn.com/Niners/DiViNO/Discussions/RSS Tech Off - Convert ArrayList (of Objects) to DataSet First of all: NHibernate - :-! no further comments Big Smile

Second: you are serializing an ArrayList and want to deserialize it as DataSet or what?

]]> http://channel9.msdn.com/Forums/TechOff/44043-Convert-ArrayList-of-Objects-to-DataSet/6e0bb7128b3c4eb78bee9dea0119ec25#6e0bb7128b3c4eb78bee9dea0119ec25 Thu, 03 Mar 2005 12:11:35 GMT http://channel9.msdn.com/Forums/TechOff/44043-Convert-ArrayList-of-Objects-to-DataSet/6e0bb7128b3c4eb78bee9dea0119ec25#6e0bb7128b3c4eb78bee9dea0119ec25 Christian Liensberger 9 http://channel9.msdn.com/Niners/littleguru/Discussions/RSS Tech Off - Convert ArrayList (of Objects) to DataSet I have an ArrayList and I want to convert it to a DataSet through serializing the ArrayList (XmlSerializer)

I found the problem:
The class of the objects that are in the ArrayList contain a property that returns a Collection (Nhibernate.Collection.Set)
If I use on that property the XmlIgnore attribute it serializes perfect, but without the Collection...

Is there a way to include that collection into the serialized XmlSchema?

btw: U don't like Object/relational mapping or you just don't like  Nhibernate ? Wink

---------------------

Or is there a method to use an ArrayList as DataSource of a DataGrid, so it allows sorting (wich isn't the case if you bind an ArrayList to a DataSource)

]]> http://channel9.msdn.com/Forums/TechOff/44043-Convert-ArrayList-of-Objects-to-DataSet/8dfa387e9773490b82289dea0119ec52#8dfa387e9773490b82289dea0119ec52 Thu, 03 Mar 2005 14:55:19 GMT http://channel9.msdn.com/Forums/TechOff/44043-Convert-ArrayList-of-Objects-to-DataSet/8dfa387e9773490b82289dea0119ec52#8dfa387e9773490b82289dea0119ec52 DiViNO 9 http://channel9.msdn.com/Niners/DiViNO/Discussions/RSS Tech Off - Convert ArrayList (of Objects) to DataSet
DiViNO wrote:
btw: U don't like Object/relational mapping or you just don't like  Nhibernate ? Wink

He's a developer of a competing framework (hint: username matches site).

]]> http://channel9.msdn.com/Forums/TechOff/44043-Convert-ArrayList-of-Objects-to-DataSet/b19c9bd2a3724729a1ff9dea0119ec7b#b19c9bd2a3724729a1ff9dea0119ec7b Thu, 03 Mar 2005 16:25:38 GMT http://channel9.msdn.com/Forums/TechOff/44043-Convert-ArrayList-of-Objects-to-DataSet/b19c9bd2a3724729a1ff9dea0119ec7b#b19c9bd2a3724729a1ff9dea0119ec7b sbc 9 http://channel9.msdn.com/Niners/sbc/Discussions/RSS Tech Off - Convert ArrayList (of Objects) to DataSet
sbc wrote:
DiViNO wrote: btw: U don't like Object/relational mapping or you just don't like  Nhibernate ? Wink

He's a developer of a competing framework (hint: username matches site).


It's not that. I don't know, i don't like the NHibernate port for .NET. It's to much JAVA-alike for me. You have to do the mapping in xml etc... That's java practise not .NET!

There are also other nice frameworks out there, not only mine. For example XPO or others...

]]> http://channel9.msdn.com/Forums/TechOff/44043-Convert-ArrayList-of-Objects-to-DataSet/49dde2f770c04d0191b09dea0119eca6#49dde2f770c04d0191b09dea0119eca6 Fri, 04 Mar 2005 01:40:01 GMT http://channel9.msdn.com/Forums/TechOff/44043-Convert-ArrayList-of-Objects-to-DataSet/49dde2f770c04d0191b09dea0119eca6#49dde2f770c04d0191b09dea0119eca6 Christian Liensberger 9 http://channel9.msdn.com/Niners/littleguru/Discussions/RSS Tech Off - Convert ArrayList (of Objects) to DataSet
littleguru wrote:
sbc wrote:
DiViNO wrote: btw: U don't like Object/relational mapping or you just don't like  Nhibernate ? Wink

He's a developer of a competing framework (hint: username matches site).


It's not that. I don't know, i don't like the NHibernate port for .NET. It's to much JAVA-alike for me. You have to do the mapping in xml etc... That's java practise not .NET!

Perhaps it is to encourage Java developers to .NET - after all it is based on Hibernate (which is a Java framework). Would be strange if NHibernate was not Java-like.

]]> http://channel9.msdn.com/Forums/TechOff/44043-Convert-ArrayList-of-Objects-to-DataSet/3642ef53091c47efa4f29dea0119ecd0#3642ef53091c47efa4f29dea0119ecd0 Fri, 04 Mar 2005 11:54:10 GMT http://channel9.msdn.com/Forums/TechOff/44043-Convert-ArrayList-of-Objects-to-DataSet/3642ef53091c47efa4f29dea0119ecd0#3642ef53091c47efa4f29dea0119ecd0 sbc 9 http://channel9.msdn.com/Niners/sbc/Discussions/RSS Tech Off - Convert ArrayList (of Objects) to DataSet
sbc wrote:

Perhaps it is to encourage Java developers to .NET - after all it is based on Hibernate (which is a Java framework). Would be strange if NHibernate was not Java-like.


It isn't strange to have to change to a Java mind-set when using a .NET library?

]]> http://channel9.msdn.com/Forums/TechOff/44043-Convert-ArrayList-of-Objects-to-DataSet/19ed77060c0d467294389dea0119ecf8#19ed77060c0d467294389dea0119ecf8 Fri, 04 Mar 2005 17:51:55 GMT http://channel9.msdn.com/Forums/TechOff/44043-Convert-ArrayList-of-Objects-to-DataSet/19ed77060c0d467294389dea0119ecf8#19ed77060c0d467294389dea0119ecf8 geekling 9 http://channel9.msdn.com/Niners/geekling/Discussions/RSS Tech Off - Convert ArrayList (of Objects) to DataSet
littleguru wrote:
It's not that. I don't know, i don't like the NHibernate port for .NET. It's to much JAVA-alike for me. You have to do the mapping in xml etc... That's java practise not .NET!


There are also other nice frameworks out there, not only mine. For example XPO or others...



You're right.

I don't get why you have to declare your relationships again in the xml files, they are already defined in the database!
Aren't there any frameworks that reflect your database schema and put them into businesslogic?

I took NHibernate because it's open source.
LLBLGEN looks very nice, but has it's cost also.

]]> http://channel9.msdn.com/Forums/TechOff/44043-Convert-ArrayList-of-Objects-to-DataSet/bc84ca0fafb34d24967b9dea0119ed21#bc84ca0fafb34d24967b9dea0119ed21 Fri, 04 Mar 2005 19:20:42 GMT http://channel9.msdn.com/Forums/TechOff/44043-Convert-ArrayList-of-Objects-to-DataSet/bc84ca0fafb34d24967b9dea0119ed21#bc84ca0fafb34d24967b9dea0119ed21 DiViNO 9 http://channel9.msdn.com/Niners/DiViNO/Discussions/RSS Tech Off - Convert ArrayList (of Objects) to DataSet Have not tried it, but what about using

ArrayList.ToArray(type)

and serialising that? If type is set to the correct object in the arraylist it ought to work.

If not, try casting it to an array and then serialising that:

Ctype(ArrayList.ToArray(type), type())

]]> http://channel9.msdn.com/Forums/TechOff/44043-Convert-ArrayList-of-Objects-to-DataSet/0bde157ba57a487d92439dea0119ed62#0bde157ba57a487d92439dea0119ed62 Sat, 05 Mar 2005 17:38:54 GMT http://channel9.msdn.com/Forums/TechOff/44043-Convert-ArrayList-of-Objects-to-DataSet/0bde157ba57a487d92439dea0119ed62#0bde157ba57a487d92439dea0119ed62 quango 9 http://channel9.msdn.com/Niners/quango/Discussions/RSS