Cannot store arraylist in session

[ricardo.sobral.santos]

Hi there,

I cannot store an arraylist in a session. I have read some posts and
still found no solution. I am sure it might be something simple, but
since I have been around it for quite sometime I ask for your advice.

Here is my page load.

Protected Sub Page_Load(ByVal sender As Object, ByVal e As
System.EventArg s) Handles Me.Load

If Not Page.IsPostBack Then
Dim users As New ArrayList
users = User_.ArrayOfUs ers ' This gets an array of
users. (User_ is just an object)
Session.Add("us ers", users)
Session.Add("i" , 0)

i = 0
details =
User_.UserID_Im age_Thumbnail_L astCheck_Rating _NumberOfVotes( users.Item(i))
Image.ImageUrl = details(1).ToSt ring
lblLastChecked. Text = details(3).ToSt ring
details.Clear()
users.Clear()
Else
i = CType(Session(" i"), Integer)
Dim users_tmp As New ArrayList
users_tmp = CType(Session(" users"), ArrayList) ' Why is
this empty?!?! I cannot understand...

detailsAfterRat ing =
User_.UserID_Im age_Thumbnail_L astCheck_Rating _NumberOfVotes( users_tmp.Item( i))
details =
User_.UserID_Im age_Thumbnail_L astCheck_Rating _NumberOfVotes( users_tmp.Item( (i
+ 1)))

Image.ImageUrl = details(1).ToSt ring
lblLastChecked. Text = details(2).ToSt ring

RatedImage.Imag eUrl = detailsAfterRat ing(2).ToString
lblRating.Text = detailsAfterRat ing(5).ToString
lblPastRate.Tex t = yourRating.ToSt ring
i = (i + 1)
Session.Add("i" , i)
details.Clear()
detailsAfterRat ing.Clear()
End If
End Sub

[Hans Kesting]

See inline

Hi there,

I cannot store an arraylist in a session. I have read some posts and
still found no solution. I am sure it might be something simple, but
since I have been around it for quite sometime I ask for your advice.

Here is my page load.

Protected Sub Page_Load(ByVal sender As Object, ByVal e As
System.EventArg s) Handles Me.Load

If Not Page.IsPostBack Then
Dim users As New ArrayList
users = User_.ArrayOfUs ers ' This gets an array of
users. (User_ is just an object)
Session.Add("us ers", users)

Here you store a *reference* to the arraylist, not the arraylist itself

Session.Add("i" , 0)
i = 0
details =
User_.UserID_Im age_Thumbnail_L astCheck_Rating _NumberOfVotes( users.Item
(i))
Image.ImageUrl = details(1).ToSt ring
lblLastChecked. Text = details(3).ToSt ring
details.Clear()
users.Clear()

And here you erase the 'users' list, which also erases that list in session,
as that is exactly the same list!

Else
i = CType(Session(" i"), Integer)
Dim users_tmp As New ArrayList

Minor note: you don't need "new" here: you don't want to create a new instance
here as that will be overwritten in the next line

users_tmp = CType(Session(" users"), ArrayList) ' Why is
this empty?!?! I cannot understand...
detailsAfterRat ing =
User_.UserID_Im age_Thumbnail_L astCheck_Rating _NumberOfVotes( users_tmp.
Item(i))
details =
User_.UserID_Im age_Thumbnail_L astCheck_Rating _NumberOfVotes( users_tmp.
Item((i
+ 1)))

Image.ImageUrl = details(1).ToSt ring
lblLastChecked. Text = details(2).ToSt ring
RatedImage.Imag eUrl = detailsAfterRat ing(2).ToString
lblRating.Text = detailsAfterRat ing(5).ToString
lblPastRate.Tex t = yourRating.ToSt ring
i = (i + 1)
Session.Add("i" , i)
details.Clear()
detailsAfterRat ing.Clear()
End If
End Sub

[ricardo.sobral.santos]

On 29 Mar, 08:46, Hans Kesting <news.2.han...@ spamgourmet.com wrote:

See inline

Hi there,

Icannotstoreana rraylistin asession. I have read some posts and
still found no solution. I am sure it might be something simple, but
since I have been around it for quite sometime I ask for your advice.

Here is my page load.

Protected Sub Page_Load(ByVal sender As Object, ByVal e As
System.EventArg s) Handles Me.Load

If Not Page.IsPostBack Then
Dim users As NewArrayList
users = User_.ArrayOfUs ers ' This gets an array of
users. (User_ is just an object)
Session.Add("us ers", users)

Here youstorea *reference* to thearraylist, not thearraylistits elf

Session.Add("i" , 0)
i = 0
details =
User_.UserID_Im age_Thumbnail_L astCheck_Rating _NumberOfVotes( users.Item
(i))
Image.ImageUrl = details(1).ToSt ring
lblLastChecked. Text = details(3).ToSt ring
details.Clear()
users.Clear()

And here you erase the 'users' list, which also erases that list insession,
as that is exactly the same list!

Else
i = CType(Session(" i"), Integer)
Dim users_tmp As NewArrayList

Minor note: you don't need "new" here: you don't want to create a new instance
here as that will be overwritten in the next line

users_tmp = CType(Session(" users"),ArrayLi st) ' Why is
this empty?!?! Icannotundersta nd...
detailsAfterRat ing =
User_.UserID_Im age_Thumbnail_L astCheck_Rating _NumberOfVotes( users_tmp.
Item(i))
details =
User_.UserID_Im age_Thumbnail_L astCheck_Rating _NumberOfVotes( users_tmp.
Item((i
+ 1)))

Image.ImageUrl = details(1).ToSt ring
lblLastChecked. Text = details(2).ToSt ring
RatedImage.Imag eUrl = detailsAfterRat ing(2).ToString
lblRating.Text = detailsAfterRat ing(5).ToString
lblPastRate.Tex t = yourRating.ToSt ring
i = (i + 1)
Session.Add("i" , i)
details.Clear()
detailsAfterRat ing.Clear()
End If
End Sub- Hide quoted text -

- Show quoted text -- Hide quoted text -

- Show quoted text -

Tks! That solved some issues. Still how can I then store the values
itself and not the reference?
Sorry for this, but I am quite newbie at asp.net.

Thanks.

[Aidy]

Tks! That solved some issues. Still how can I then store the values
itself and not the reference?

You can't. Just delete the users.Clear line from your code.