Hi,

I'm trying to display a WHDG from code behind. At run time, I receive the following error (sorry for the French message):

Microsoft JScript runtime error: Sys.ArgumentUndefinedException: La valeur ne peut pas être non définie.
Nom du paramètre : type

(translation: Value cannot be undefined, parameter name: type).

in what seems to be JS code in a file called ScriptResource.axd?IFOK_etc.,  line 2700. Code:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

var

 

 

$create = Sys.Component.create = function

Sys$Component$create(type, properties, events, references, element) {

 

 

/// <summary locid="M:J#Sys.Component.create" />

 

 

/// <param name="type" type="Type"></param>

 

 

/// <param name="properties" optional="true" mayBeNull="true"></param>

 

 

/// <param name="events" optional="true" mayBeNull="true"></param>

 

 

/// <param name="references" optional="true" mayBeNull="true"></param>

 

 

/// <param name="element" domElement="true" optional="true" mayBeNull="true"></param>

 

 

/// <returns type="Sys.UI.Component"></returns>

 

 

var

e = Function._validateParams(arguments, [

{name:

 

"type"

, type: Type},

{name:

 

"properties", mayBeNull: true, optional: true

},

{name:

 

"events", mayBeNull: true, optional: true

},

{name:

 

"references", mayBeNull: true, optional: true

},

{name:

 

"element", mayBeNull: true, domElement: true, optional: true

}

]);

 

 

if (e) throw

e;

The code behind code looks like this (it'is in a content page of a Master page):

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Dim authors As New

DataTable()

authors.Columns.Add(

 

"authID"

)

authors.Columns.Add(

 

"Name"

)

authors.Rows.Add(

 

"001", "J.R.R. Tolkien"

)

authors.Rows.Add(

 

"002", "S. King"

)

authors.Rows.Add(

 

"003", "J.K. Rowlings"

)

 

 

Dim books As New

DataTable()

books.Columns.Add(

 

"authID"

)

books.Columns.Add(

 

"BookTitle"

)

books.Rows.Add(

 

"001", "Lord of the rings - 1"

)

books.Rows.Add(

 

"001", "Lord of the rings - 2"

)

books.Rows.Add(

 

"001", "Lord of the rings - 3"

)

books.Rows.Add(

 

"001", "The Silmarillon"

)

books.Rows.Add(

 

"001", "Faerie"

)

books.Rows.Add(

 

"002", "Insomnia"

)

books.Rows.Add(

 

"002", "Christine"

)

books.Rows.Add(

 

"002", "Carrie"

)

books.Rows.Add(

 

"003", "Harry Potter 1"

)

books.Rows.Add(

 

"003", "Harry Potter 2"

)

books.Rows.Add(

 

"003", "Harry Potter 3"

)

books.Rows.Add(

 

"003", "Harry Potter 4"

)

books.Rows.Add(

 

"003", "Harry Potter 5"

)

books.Rows.Add(

 

"003", "Harry Potter 6"

)

books.Rows.Add(

 

"003", "Harry Potter 7"

)

 

 

Dim ds As New

DataSet

ds.Tables.Add(authors)

ds.Tables.Add(books)

ds.Relations.Add(ds.Tables(0).Columns(0), ds.Tables(1).Columns(0))

 

 

With

GrilleListeCoursGroupe

.Bands.Clear()

.DataSource = ds

.DataKeyFields =

 

"authID"

.DataBind()

 

 

End

With