I'm in the process of upgrading some controls that use 2007 Q3 to prometheus. As far as I know they worked perfectly with the Q3 but I'm having some strange issues with prometheus.
objective: a combobox which allows you to find stuff on a web 2.0 way: typ something in it > items get requested. use the dropdown button > first x items get requested.
So I have this defined in code
_elocation is a servercontrol which contains a dropdownlist.
the events are mapped to a custom function.
Now the problem:
1. First load of the page:
- click on the button = dropdown opens but no items request, no trace of any event, no postback
- click on the v below = items get requested - postback
2. second load (after the previous postback)
- click on the button=postback, items get requested - works as expected
I think that a click on the button used to cause a "itemsrequested" event.
Is their a way to achieve this with prometheus - without javascript ? It's nice that this is optional so we can now use the combobox as an autosuggestion textbox :)
tx in advance
objective: a combobox which allows you to find stuff on a web 2.0 way: typ something in it > items get requested. use the dropdown button > first x items get requested.
So I have this defined in code
| _eLocation.MyDropDownList.MarkFirstMatch = True | |
| _eLocation.AutoPostBack = True | |
| _eLocation.MyDropDownList.AllowCustomText = True | |
| _eLocation.MyDropDownList.ShowMoreResultsBox = True | |
| _eLocation.MyDropDownList.ItemRequestTimeout = 500 | |
| _eLocation.MyDropDownList.EnableLoadOnDemand = True | |
| AddHandler _eLocation.SelectedIndexChanged, AddressOf NewLocationSelected | |
| AddHandler _eLocation.ItemsRequested, AddressOf ItemsRequested | |
| AddHandler _eLocation.TextChanged, AddressOf TextChanged |
_elocation is a servercontrol which contains a dropdownlist.
the events are mapped to a custom function.
Now the problem:
1. First load of the page:
- click on the button = dropdown opens but no items request, no trace of any event, no postback
- click on the v below = items get requested - postback
2. second load (after the previous postback)
- click on the button=postback, items get requested - works as expected
I think that a click on the button used to cause a "itemsrequested" event.
Is their a way to achieve this with prometheus - without javascript ? It's nice that this is optional so we can now use the combobox as an autosuggestion textbox :)
tx in advance
2 Answers, 1 is accepted
0
Gompje
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answered on 21 Feb 2008, 01:28 PM
update:
I've traced the problem further and when I don't set an "empty item text" the combobox works as expected.
This text is set like this:
Me.MyDropDownList.Text = "--- typ a name or select 1 from the list ---"
on the itemsrequested this text was cleared so on a request you got all the items.
This worked in Q3 2007 but breaks in prometheus, no postback...
Am I missing something?
I've traced the problem further and when I don't set an "empty item text" the combobox works as expected.
This text is set like this:
Me.MyDropDownList.Text = "--- typ a name or select 1 from the list ---"
on the itemsrequested this text was cleared so on a request you got all the items.
This worked in Q3 2007 but breaks in prometheus, no postback...
Am I missing something?
0
Hi Gompje,
I suggest you that hook on the OnClientOpening event of RadComboBox and send request to its event handler:
As for an example:
This will load items when the drop down is opened.
Hope this helps.
Kind regards,
Rosi
the Telerik team
Instantly find answers to your questions at the new Telerik Support Center
I suggest you that hook on the OnClientOpening event of RadComboBox and send request to its event handler:
As for an example:
| function HandleOpen(sender, args) |
| { |
| sender.requestItems("",false); |
| } |
This will load items when the drop down is opened.
Hope this helps.
Kind regards,
Rosi
the Telerik team
Instantly find answers to your questions at the new Telerik Support Center