expression for a instantiation a DataColumnobject

[Wolfram Hubert]

Hallo,

i not unterstand the expression {oColPk}, see Row 18. What do have the
braces with the instantiation a DataColumnobject?
1 Private Sub Test()
2 Dim oDsCustomer As DataSet
3 Dim oTblOrders As DataTable
4 Dim oColPk As DataColumn
5
6 'Eine Tabelle mit 3 Spalten im Arbeitsspeicher anlegen
7 oDsCustomer = New DataSet("CustomerOrders")
8
9 oTblOrders = New DataTable
10 oTblOrders = oDsCustomer.Tables.Add("Orders")
11
12 oColPk = New DataColumn
13
14 oColPk = oTblOrders.Columns.Add("OrderID",
Type.GetType("System.Int32"))
15 oTblOrders.Columns.Add("OrderQuantity", Type.GetType("System.Int32"))
16 oTblOrders.Columns.Add("CompanyName", Type.GetType("System.String"))
17
18 oTblOrders.PrimaryKey = New DataColumn() {oColPk} '<--- What is that?
19 end Sub
<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<

Greetings

Wolfram Hubert

 

[William Ryan eMVP]

The PrimaryKey takes an Array of DataColumn objects. It may be just one
column or it may be more, in this case it just looks like one.

http://www.knowdotnet.com/articles/adopartiii.html

HTH,

Bill

--
W.G. Ryan MVP Windows - Embedded

http://forums.devbuzz.com
http://www.knowdotnet.com/dataaccess.html
http://www.msmvps.com/williamryan/