[Solved] Programmatically creating related RadComboBoxes

[Eric]

Hi,

What I'm trying to do is programatically create anywhere from 5-15 comboboxes on a page (number will vary based on user information).  While this part is easy enough, I also have need to make them related.  If I were dropping the control on the page, I'd be using the OnItemsRequested method, but since I'm doing this programmatically and the method is Protected, I'm stuck.

Here's what I've attempted:

Dim cmbo As New RadComboBox

cmbo.ID = "cmboTest"
cmbo.OnClientItemsRequested = "" 'Telerik.Web.UI.RadComboBox.Protected Overrideable Sub OnItemsRequested(...) is not accessible in this context because it is Protected.
cmbo.EnableLoadOnDemand = True

cmbo.DataSource = GetValues("Test")
cmbo.DataBind()

 

[Yana]

Hello Eric,

You should subscribe to ItemsRequested event like this:

Dim cmbo As New RadComboBox()
cmbo.ID = "cmboTest"
AddHandler cmbo.ItemsRequested, AddressOf cmbo_ItemsRequested

and the event handler:

Protected Sub cmbo_ItemsRequested(ByVal sender As Object, ByVal e As RadComboBoxItemsRequestedEventArgs)

End Sub

Regards,
Yana
the Telerik team

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[Shimon]

Hi,

How i can accomplish the same thing with c#?
I haven't seen any examples to addhandler to radcombobox dynamically.

Appreciate your help.

Shimon

[Princy]

Hi,

You could use the following code snippet in order to add handler dynamically.

C#:

RadComboBox radcombobox = mew RadComboBox();
radcombobox.ID= "RadCombo";
radcombobox.ItemsRequested+=new RadComboBoxItemsRequestedEventHandler(radcombobox_ItemsRequested);

And here is the event handler.

void radcombobox_ItemsRequested(object o, RadComboBoxItemsRequestedEventArgs e)
{
    //Your code goes here
}

You can also use the following link in order to convert VB code to C# and vice versa.
Code Converter

Thanks,
Princy.

[Rajesh Meenrajan]

This does not work as you said atleast in sharepoint. I get Javascript error for using the RadComboBox.

Here is the error:

'addEventListner' is null or not an object

 
Found this problem in version: 2009.2.701.0

Thank you,
Raj