2009-02-04T03:20:00.001-08:00

Saving collection back to it's database table. vb 2005

IDE : VS 2005,
Platform : .NET 2.0,

Hey all I have a collection class that is populated from a SQL database.

Code: Public Class LocalAuthorityList
Inherits ComponentModel.BindingList(Of LocalAuthority)
#Region " Public Methods"
Public Shared Function Create(ByVal userid As Integer) As LocalAuthorityList
Dim userlacoll As LocalAuthorityList
userlacoll = New LocalAuthorityList

Dim dt As DataTable
dt = CAPSDAC.DAC.ExecuteDataTable("GetListOfLocalAuthoritiesbyUserID", DAC.Parameter("@UserID", userid))

For Each dr As DataRow In dt.Rows

With dr

userlacoll.Add(LocalAuthority.Create(dr))

End With

Next

Return userlacoll

End Function
#End Region
End Class

I have a form with a datagridview that is linked to a datasource of type object, specifically the LocalAuthorityList collection.

In the form's Load method I instantiate the collection and bind to the datasource like this:

Code: Me.LocalAuthorityListBindingSource.DataSource = LocalAuthorityList.Create(CAPSUserListCollectionDataGridView.Rows(0).Cells.Item("UserID").Value)

Note that the Datasource is a colection object, NOT a datatable.

How on earth do I go about saving any changes the user made in the datafridview back to the database?
Do I have to loop through every row and call and update query for each row, can I do it as a 1 step thing?

source :http://www.vbcity.com

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

Trik Gambar Bergerak

Trik Gambar-dimouse

Trik hapus pwd mysql

Trik insertin to db

Trik jadi root dilinux

Trik jam-distatus-bar

Trik Koneksi-ke database

Trik Koneksi-msql-php

Trik lihat-database-mysql

Trik membahas-fungsi-else

Trik member-area

Saving collection vb 2005