ASP.NET et Javascript en code-behind

One article in french :
http://dotnet.developpez.com/faq/asp/vbnet/?page=js_introduction

Passing Parameters from One Page to Another

An article from
http://aspnet.4guysfromrolla.com/articles/020205-1.aspx

Filling a dropdownlist with LINQ

Partial Public Class _Default
    Inherits System.Web.UI.Page

    Dim northwind As New northwindDataContext()

    Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
        
        If Not IsPostBack Then
            Dim categories = From categorie In northwind.Categories _
                                     Select categorie
            DropDownList1.DataSource = categories
            DropDownList1.DataTextField = "CategoryName"
            DropDownList1.DataValueField = "CategoryID"
            DropDownList1.DataBind()
        End If
        
    End Sub

    Protected Sub Button1_Click(ByVal sender As Object, ByVal e As EventArgs) Handles Button1.Click
        Dim selectValue = DropDownList1.SelectedItem.Value
        Dim products = From product In northwind.Products _
                       Where product.CategoryID = selectValue
        GridView1.DataSource = products
        GridView1.DataBind()
    End Sub

End Class

The ASPX Page

<body>
    <form id="form1" runat="server">
    <div>
        <asp:DropDownList ID="DropDownList1" runat="server">
        </asp:DropDownList>
        <asp:Button ID="Button1" runat="server" Text="Button" />
        <br />
        <hr />
        <asp:GridView ID="GridView1" runat="server">
        </asp:GridView>
    </div>
    </form>
</body>

Transmit Forms Data to another ASP.NET page

A dicscussion a bout this problem
http://www.velocityreviews.com/forums/t67347-how-aspnet-page-gets-user-input-from-another-aspnet-page.html
And from Microsoft
http://msdn.microsoft.com/msdnmag/issues/03/04/ASPNETUserState/default.aspx

LINQ to XML

Simple Query Sample

Module Module1

    Sub Main()
        Dim doc = XDocument.Load("c:\books.xml").Elements
        Dim query = From data In doc.Elements _
                    Where data.Element("title") = "Python"
        For Each g In query
            Console.WriteLine(g.Element("author").Value)
        Next
        Console.ReadLine()
    End Sub

End Module

Sample File

<books>
<book><title>Python</title><author>Guido</author></book>
<book><title>Haskell</title><author>Books</author></book>
</books>

LINQ to XML Samples

A few samples on querying XML with LINQ
http://www.thomasclaudiushuber.com/blog/tag/linq/

Creating Custom Configuration Sections in Web.config

From Scott Mitchell

http://aspnet.4guysfromrolla.com/articles/020707-1.aspx