asp:datagrid: sort expression (VB.net) : DataGrid « ADO.net Database « ASP.Net






asp:datagrid: sort expression (VB.net)

<%@ Page Language=VB Debug=true %>
<%@ Import Namespace="System.Data" %>
<%@ Import Namespace="System.Data.OLEDB" %>
<script runat=server>
Sub Page_Load(ByVal Sender as Object, ByVal E as EventArgs)
    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("EmployeeDatabase.mdb;"))
        DBCommand = New OleDbDataAdapter _
            ("Select * " _
            & "From Employee " _
            & "Order By LastName, FirstName", DBConn)
        DBCommand.Fill(DSPageData, _
            "Employee")
        dgEmps.DataSource = _
            DSPageData.Tables("Employee").DefaultView
        dgEmps.DataBind()
    End If
End Sub
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("EmployeeDatabase.mdb;"))
    DBCommand = New OleDbDataAdapter _
        ("Select * " _
        & "From Employee Order By " _
        & E.SortExpression.ToString() , DBConn)
    DBCommand.Fill(DSPageData, _
        "Employee")
    dgEmps.DataSource = _
        DSPageData.Tables("Employee").DefaultView
    dgEmps.DataBind()
End Sub
</SCRIPT>
<HTML>
<HEAD>
<TITLE>Sorting a DataGrid Control</TITLE>
</HEAD>
<Body LEFTMARGIN="40">
<form runat="server">
<BR><BR>

<asp:datagrid
    id="dgEmps" 
    allowsorting="True"
    onsortcommand="Sort_Grid"
    autogeneratecolumns="false"
    runat="server" 
>
    <columns>
        <asp:boundcolumn 
            headertext="Last Name" 
            datafield="LastName"
            sortexpression="LastName"
        />
        <asp:boundcolumn 
            headertext="First Name" 
            datafield="FirstName"
            sortexpression="FirstName"
        />
        <asp:boundcolumn 
            headertext="ID" 
            datafield="ID"
            DataFormatString="{0:c}"
            sortexpression="ID"
        />
    </columns>
</asp:datagrid>
</form>
</BODY>
</HTML>
           
       








EmployeeDatabase.zip( 10 k)

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