User Control Events Not Firing

[Modica82]

Hi all,

Yes i am the one with all the States problems and i still have not managed to get rid of them!!

Can someone just explain something to me as i dont understand what is happening, i have a user control, which just for peace of mind i have set at runtime, i mean i have set the tag prefix etc and physically placed it on the page, still i have my viewState problems which i really do not understand!! but what my main problem is my events are not firing up???

on this user control i have two dropdown lists the first one has an onSelectedItemChanged event which fires up, and populates the second combo, i have this working now, but i still require a round trip to the server(as my state is not maintained) which is something i will have to address. But i also have a onSelectedItemChanged event in my second drop down, which doesnt work, and i dont know why it doesnt work!?? i did also populate the second drop down on page_init event(within my user control) and then the event fires up, but that is wrong as that means i cant dynamically populate the dropdownlist!???

Can anyone help me, i have had the worst couple of days for a long time!!

Rob

 

[cappmgr]

Since it is very easy to change an .aspx into an .ascx I would make sure it worked correctly as an aspx. Then at the very least you know it is a state problem caused by being a uc. Not a solution but a course of action that could eliminate possible problems making your pool smaller.
Marty

 

[Modica82]

Works fine as an ASPX page, when i pull it in it breaks, it must be a problem with user controls, which really if it is the case, makes a mockery of the whole ASP.Net architecture, ok maybe a bit over the top there, but i am very annoyed about this! Any suggestions i am sure i wont say no to them!

Rob

 

[Modica82]

Can anyone see anything wrong with this code, as i cannot:

<%@ Import Namespace=&quot;Country.Business&quot; %>
<%@ Import Namespace=&quot;Resort.Business&quot; %>

<script runat=&quot;server&quot;>


sub Page_Load(ByVal Sender As Object, ByVal e As EventArgs)

If Page.IsPostBack = False Then
BindData()
End If

End Sub

sub BindData()

'Create Instance To DataObjects
Dim countries As New CountryBiz()

'Set Properties For Country DropDown List
Country.DataSource = countries.GetCountries()
Country.DataValueField = &quot;ID&quot;
Country.DataTextField = &quot;CountryName&quot;
Country.DataBind()

'Add Default DataList Item
Country.Items.Insert(0, &quot;Select A Country&quot

End Sub

Sub CountryChanged(ByVal Sender As Object, ByVal e As EventArgs)

'Create Instance Of Resorts DataObject
Dim resorts As New ResortsBiz()
Dim CountryID As Integer = Country.SelectedItem.Value

'Set Properties For Resort DropDown List
Resort.DataSource = resorts.getResortsByCountry(CountryID)
Resort.DataValueField = &quot;ID&quot;
Resort.DataTextField = &quot;ResortName&quot;
Resort.DataBind()

'Enable Resort Drop Down List
Resort.Enabled = True

'Add Default DataList Item
Resort.Items.Insert(0, &quot;Select A Resort&quot

End Sub

sub ResortChanged(byVal Sender As Object, ByVal e As EventArgs)

Dim ResortID As Integer = Resort.SelectedItem.Value

If ResortID <> 0 Then
Response.redirect(&quot;./Resorts/resortDetails.aspx?ID=&quot; & ResortID & &quot;&Parent=0&Section=2&quot
End If

End Sub
</script>

<asp:dropdownlist ID=&quot;Country&quot;
runat=&quot;server&quot;
autopostback=&quot;true&quot;
onSelectedIndexChanged=&quot;CountryChanged&quot;
EnableViewState=&quot;True&quot;
cssClass=&quot;clInput&quot;
width=&quot;160&quot;
/>

<asp:dropdownlist ID=&quot;Resort&quot;
runat=&quot;server&quot;
autopostback=&quot;true&quot;
onSelectedIndexChanged=&quot;ResortChanged&quot;
EnableViewState=&quot;True&quot;
cssClass=&quot;clInput&quot;
width=&quot;160&quot;
enabled=&quot;false&quot;
/>

 

[cappmgr]

What does the InitializeComponent look like? I use C# so I hope the terminology is the same. Does vb implicitly cast a string to an int?
Marty

 

[Modica82]

I must apologise to Microsoft, i have been sitting here for a full day getting more and more fustrated at why none of my controls worked and the whole reason was the fact that when i first started using .Net i decided to set the forms enableViewState property to false, i must have been half asleep and i know am sitting here looking the fool!

Thank you everyone for your responces

Rob