Selecting by group with null support

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Selecting by group with null support

Message

20/09/2015 09:45:42

Michel Fournier
Level Extreme Inc.
Petit-Rocher, Nouveau-Brunswick, Canada

Tous

Information générale

Forum:

ASP.NET

Catégorie:

Autre

Titre:

Selecting by group with null support

Versions des environnements

Environment:

VB 9.0

OS:

Windows 8.1

Network:

Windows 2008 Server

Database:

MS SQL Server

Application:

Web

Divers

Thread ID:

01624841

Message ID:

01624841

Vues:

I have this command to select only the groups from a datatable:

' Group
loResult = loDataTable.AsEnumerable().GroupBy(Function(r) r.Field(Of Integer)(lcPrimaryKey)).[Select](Function(g) g.First()).CopyToDataTable

I just found out that this will generate an error if one of the values is a null.

Is there a way I can add support in this command for such situation?

Michel Fournier
Level Extreme Inc.
Designer, architect, owner of the Level Extreme Platform
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