[Mono-list] Patch - First implementation to DataRelation

[Daniel Morgan]

Hello Alan,

Your patch has been committed to cvs.

Cheers,
Daniel

-----Original Message-----
From: Alan Tam [mailto:Tam@SiuLung.com]
Sent: Monday, February 17, 2003 8:37 PM
To: ville
Cc: Daniel Morgan
Subject: Re: [Mono-list] Patch - First implementation to DataRelation


I don't know why the local file also cannot patch. Please try this one =
again.
The patch is based on the newest cvs.

Regards,
Alan

----- Original Message -----
From: "ville" <vi64pa@kolumbus.fi>
To: "Alan Tam" <Tam@SiuLung.com>
Cc: "Daniel Morgan" <danmorg@sc.rr.com>
Sent: Tuesday, February 18, 2003 3:33 AM
Subject: Re: [Mono-list] Patch - First implementation to DataRelation



Hi Alan!

Thank you for your patch, but there seems to be some problems for =
patching it.
Error messages was something like
Hunk #1 Failed at 2
Hunk #2 Failed...
...

Could it be you did the diff against 0.19 instead of cvs?

Ville

On Monday 17 February 2003 19:47, Alan Tam wrote:
> Proposed ChangeLog:
>         * DataRelation.cs: Added storage required to hold the =
relations.
> Checking of constraints are not implemented yet. Extended properties =
and
> events not ready yet.
>         * DataRelationCollection.cs: Implemented =
DataSetRelationCollection
> and DataTableRelationCollection, both as inner class of the abstract =
class
> DataRelationCollection (like Microsoft although not documented in =
ECMA). *
> DataRow.cs: Implemented GetChildRows in a extremely slow way. Need to
> implement caching like Microsoft later.
>         * DataSet.cs: Uncomment DataRelation related members. =
Uncomment
> code for Nested XML. Implemented WriteTable(XmlWriter, DataRow[],
> XmlWriteMode) for use of Nested XML. Fixed a wrong modifier in
> GetSerializationData. * DataTable.cs: Uncomment DataRelation related
> members.
>
> (btw, DataTableRelationCollection.cs is not even in the build list, so =
can
> safely be removed)
>
> With this patch, a person can:
> - Add relations to DataSet and DataTable without error
> - Find the relations by DataSet.Relations, DataTable.ChildRelations,
> DataTable.ParentRelations
> - Find related rows by DataRow.GetChildRows
> - Directly use a Typed DataSet generated from MS XSD.exe without any
> modification
> - Generate Nested XML from a DataSet with DataRelation.Nested set
> but not:
> - Gurantee constraints are automatically created
> - Find the constraints by DataTable.Constraints
> - Find related rows by DataRow.GetParentRow, DataRow.GetParentRows
> - Enforce unique constraint
> - Enforce foreign key constraint
>
> A sample Nested XML generated is like this:
> <OEC>
>   <OE>
>     <OEID>23</OEID>
>     <Heading>JUPAS interview</Heading>
>     <SubHeading>for form 7 student</SubHeading>
>     <OESlot>
>       <OEID>23</OEID>
>       <OEItemNo>1</OEItemNo>
>       <VenueDesc>LG 103</VenueDesc>
>     </OESlot>
>     <OESlot>
>       <OEID>23</OEID>
>       <OEItemNo>2</OEItemNo>
>       <VenueDesc>LG 103</VenueDesc>
>     </OESlot>
>   </OE>
>   <OE>
>     <OEID>24</OEID>
>     <Heading>Psychology of Selling</Heading>
>     <SubHeading>The Important Things About Selling</SubHeading>
>     <OESlot>
>       <OEID>24</OEID>
>       <OEItemNo>1</OEItemNo>
>       <VenueDesc>Broadroom I, Grand Hyatt, Hong Kong
> </VenueDesc>
>     </OESlot>
>   </OE>
> </OEC>
>
> Regards,
> Alan