I want a user to be able to select a row on my webgrid and then click on a Delete Button to delete the selected row from the database and from the webgrid. (im not that good in asp.net)

If there is no row selected a DialogBox appears with "please selecta a row"

if there is a row selected a DialogBox appears with two buttons to confirm or cancel.

<script runat="server">    Sub DeleteBtn_Click() Handles DeleteBtn.Click
        
        'Delete Button   
        If WebGridEmpf.SelectedRowKeyValue <= "0" Then
            
            ErrorMSG.Visible = True
            'Dialog box appears with  "Please select a row"    
        Else
            
            DeleteMSG.Visible = True
            
            'Dialog box appears with:  "Do you want to delete this row? yes/no"
            
        End If
        
            
    End Sub
    Sub BtnYes_click() Handles btnYes.Click
        
        
        Dim myConnection As OleDbConnection
        Dim myCommand As OleDbCommand
        Dim strSQL As String
        Dim id As Integer
        
        id = WebGridEmpf.SelectedRowKeyValue
        
        strSQL = "DELETE * FROM MyTable " _
        & "WHERE ID='" & Replace(id, "'", "''") & "';"
        myConnection = New OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0; " _
         & "Data Source=C:\inetpub\wwwroot\MyWebsite\DB\Mydatabase.mdb")
        
        
        myConnection.Open()
        myCommand = New OleDbCommand(strSQL, myConnection)
        myConnection.Close()
        
     
        DeleteMSG.Visible = False
        
        'Dialogbox disappears
    End Sub
     
    Sub Btnno_click() Handles btnNo.Click
                
        Response.Write("sie haben nein gelkickt")
        DeleteMSG.Visible = False
        
        'Dialogbox disappears
        
    End Sub
</script>