Bildi?imiz gibi datagrid nesnesi Ado.net içerisindeki en geli?mi? özelliklere sahip veritabany nesnesi.Bundan önceki makalemde datagrid nesnesine giri? yapmy?tyk. ?imdi ayny datagrid nesnesine ek özellikler ekleyerek fonksiyonunu geni?letelim.

Di?er makalemdeki örne?e ek <asp:datagrid> etiketine OnSortCommand olayyny ekliyoruz.Bu bizim datagrid’i olu?turdu?umuzda hangi sütuna göre syrala yapaca?ymyzy seçmemize olanak veriyor.Ayryca <asp:BoundColumn> etiketine ise SortExpression="ad"
ekliyoruz ; bu syralama esnasynda veritabanyndaki hangi sütunu seçmesi gerekti?ini belirtiyor.

<%@ Page Language="vb" AutoEventWireup="false" src="data.aspx.vb" Inherits="data" %>
<HTML>
<HEAD>
<title>DataGrid 2</title>

</HEAD>
<body >
<form id="Form1" method="post" runat="server">
<ASP:DataGrid
id="listtalepler"
runat="server"
Width="90%"
BorderColor="black"
CellPadding=3
CellSpacing="0"
Font-Name="Trebuchet MS"
Font-Size="10pt"
ForeColor="Black"
BackColor="Beige"
HeaderStyle-BackColor="Burlywood"
HeaderStyle-Font-Bold="True"
AutoGenerateColumns="False"
OnSortCommand="Sort_Grid">
<Columns>

<asp:BoundColumn
HeaderText="AD"
DataField="ad"
SortExpression="ad"

/>
<asp:BoundColumn
HeaderText="Soyad"
DataField="soyad"
SortExpression="soyad"

/>

</Columns>
</asp:DataGrid>
</form>
</body>
</HTML>

-----data.aspx.vb-------

Imports System.Data
Imports System.Data.OleDb

Public Class data
Inherits System.Web.UI.Page
Protected WithEvents listtalepler As System.Web.UI.WebControls.DataGrid

#Region " Web Form Designer Generated Code "

'This call is required by the Web Form Designer.
<System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()

End Sub

Private Sub Page_Init(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Init
'CODEGEN: This method call is required by the Web Form Designer
'Do not modify it using the code editor.
InitializeComponent()
End Sub

#End Region

Private Sub Page_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load

If Not IsPostBack Then
Dim DBConn As OleDbConnection
Dim DBCommand As OleDbDataAdapter
Dim DSPageData As New DataSet()
DBConn = New OleDbConnection("provider=" _
& "Microsoft.Jet.OLEDB.4.0;" _
& "DATA SOURCE=" _
& Server.MapPath("db/veritabanim.mdb;"))
DBCommand = New OleDbDataAdapter _
("Select * From tbltalep " _
& " order by ad" , DBConn)
DBCommand.Fill(DSPageData, _
"talepler")
listtalepler.DataSource = _
DSPageData.Tables("talepler").DefaultView
listtalepler.DataBind()
End If
End Sub

‘ Sort_Grid olayyny tanymlayarak syralamama yapmamyza olanak veriyoruz.

Sub Sort_Grid(ByVal Sender as Object, _
ByVal E as DataGridSortCommandEventArgs)
Dim DBConn as OleDbConnection
Dim DBCommand As OleDbDataAdapter
Dim DSPageData as New DataSet
DBConn = New OleDbConnection("provider=" _
& "Microsoft.Jet.OLEDB.4.0;" _
& "DATA SOURCE=" _
& Server.MapPath("db/veritabanim;"))
DBCommand = New OleDbDataAdapter _
("Select * From tbltalep " _
& "Order By " _
‘ e.sortExpression.ToString() olayy tyklady?ymyz sütunu syralyyor
& E.SortExpression.ToString(), DBConn)
DBCommand.Fill(DSPageData, _
"talepler")
listtalepler.DataSource = _
DSPageData.Tables("talepler").DefaultView
listtalepler.DataBind()

End Sub

End Class