dynamic add control

[Peter]

Hi all
The following code only work for the first click, if i click the
image button second time, it doesn't add a control dynamically. How to fix?
Protected Sub ImageButton1_Click(ByVal sender As Object, ByVal e As
System.Web.UI.ImageClickEventArgs) Handles ImageButton1.Click
Session("numberOfUploadField") = Session("numberOfUploadField") + 1
Dim fileUpload As New FileUpload()
fileUpload.ID = "fileUpload" & Session("numberOfUploadField")
uploadPanel.Controls.Add(fileUpload)
End Sub
thanks
from Peter (cm****@hotmail.com)

[Eliyahu Goldin]

I guess it does add another control but you lose the first one between the
postbacks. If you need dynamically added controls to survive postbacks, you
need to add them in Page.Init or PreInit event.

--
Eliyahu Goldin,
Software Developer
Microsoft MVP [ASP.NET]
http://msmvps.com/blogs/egoldin
http://usableasp.net
"Peter" <cm****@hotmail.comwrote in message news:48********@127.0.0.1...

Hi all
The following code only work for the first click, if i click the
image button second time, it doesn't add a control dynamically. How to
fix?
Protected Sub ImageButton1_Click(ByVal sender As Object, ByVal e As
System.Web.UI.ImageClickEventArgs) Handles ImageButton1.Click
Session("numberOfUploadField") = Session("numberOfUploadField") + 1
Dim fileUpload As New FileUpload()
fileUpload.ID = "fileUpload" & Session("numberOfUploadField")
uploadPanel.Controls.Add(fileUpload)
End Sub
thanks
from Peter (cm****@hotmail.com)

[peter]

On 9$B7n(B8$BF|(B, $B2<8a(B4$B;~(B41$BJ,(B, "Eliyahu Goldin"
<[e-mail]:

I guess it does add another control but you lose the first one between the
postbacks. If you need dynamically added controls to survive postbacks, you
need to add them in Page.Init or PreInit event.

--
Eliyahu Goldin,
Software Developer
Microsoft MVP [ASP.NET]http://msmvps.com/blogs/egoldinhttp://usableasp.net

"Peter" <[e-mail] in messagenews:48********@127.0.0.1...

Hi all
The following code only work for the first click, if i click the
image button second time, it doesn't add a control dynamically. How to
fix?

Protected Sub ImageButton1_Click(ByVal sender As Object, ByVal e As
System.Web.UI.ImageClickEventArgs) Handles ImageButton1.Click
Session("numberOfUploadField") = Session("numberOfUploadField") + 1
Dim fileUpload As New FileUpload()
fileUpload.ID = "fileUpload" & Session("numberOfUploadField")
uploadPanel.Controls.Add(fileUpload)
End Sub

thanks
from Peter ([e-mail])

you are right, i need to recreate every control in the page_load
thanks
from Peter