usercontrol inside another usercontrol

Question

User-1648281042 posted

Hi, I'm having a strange problem - I have a usercontrol which only shows data (no editing involved) and inside it another usercontrol which is supposed to get a certain value from the first one.

Everything was working fine until I moved to asp.net 2.0 and tried to connect it to objectdatasource. Here is the relevant code:

 

1    Partial Class ascx_main_pages_standard_index_item
2        Inherits System.Web.UI.UserControl
3    
4        Private _article As Integer
5    
6        Public Property article() As Integer
7            Get
8                Return _article
9            End Get
10           Set(ByVal value As Integer)
11               _article = value
12               textbox1.text = value
	  AudioBox1.article = value
13           End Set
14       End Property
15   

The first usercontrol works just fine except for firing the second one (audiobox1)

 I also tried to use

Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
AudioBox1.article = _article
End Sub

 Which doesn't work either. What am i doing wrong???

Answer 1

User481221548 posted

Hello Nestu

Where is "AudioBox1" placed in?
Compare the executing cycle of your get- or set accessors.

I bet its an lifecycle problem.

Answer 2

User-1648281042 posted

Thanks for replying

AudioBox1 is an instance to another userControl (in another .ascx file)

I assume you are right because the value which is passed to the audiobox control is 0 (zero), so it must be a lifecycle issue. but as i said, on asp.net 1.1 it worked OK... and also, the other controls (like textbox1) work just fine, which means that the value of the property "article" is set.

thanks again for any help...

Answer 3

User481221548 posted

Hello Netsu

Go on with debugging and tracing, that will solve your lifecycle problem.

Answer 4

User-1648281042 posted

Hi Peter, thanks for your help

I did some debugging and it was indeed a problem of life cycle, so i solved that one, but the problem continues - in my usercontrol i have an sqldatasource which i want to bind to a repeater according to the property which is passed to the usercontrol.

this is the code i use:

Private _article As Integer

Public Property article() As Integer

Get

Return _article

End Get

Set(ByVal value As Integer)

_article = value

End Set

End Property

Protected Sub SqlDataSource1_Selecting(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.SqlDataSourceSelectingEventArgs)

e.Command.Parameters("@ID_article").Value = _article

End Sub

 

this is where the problem is - the sqldatasource doesnt work. if i change _article to some number like 892 it works fine (binds to the row that has id of 892)

when i put a breakpoint i can see that value of the parameter works fine - _article has the correct value according to my table. so why is the sqldatasource not binding??

Answer 5

User481221548 posted

Hi Netsu

You set the Breakpoint at the "e.Command...."-Line?