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ClientDataString

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ComboBox

This is a migrated thread and some comments may be shown as answers.

3 Answers, 1 is accepted

Accepted

answered on 01 Feb 2008, 11:23 AM

Hi Alex Dybenko,

Thank for writing to us!

We know about this inconsistency in the online help and already fixed it. It will be available on the site when we release the official service pack 2 of the Prometheus controls scheduled for the second half of February.

ClientDataString is removed from RadComboBox Prometheus and the context IDictionary object is added.
It allows you to add number of key-value pairs in the OnClientItemsRequesting.

Consider the following javascript function:

    
            function onClientItemsRequestingColor(sender, eventArgs) 
        
            { 
        
                var comboSkin = $find("<%= comboSkin.ClientID %>"); 
        
                var context = eventArgs.get_context(); 
        
                context["SelectedSkin"] = comboSkin.get_selectedItem().get_text(); 
        
                var comboWidth = $find("<%= comboWidth.ClientID %>"); 
        
                context["SelectedWidth"] = comboWidth.get_selectedItem().get_value();    
        
            }

In this way we get information from two comboboxes.

Now in the code behind we can do the following:

    
            protected void comboColor_ItemsRequested(object o, RadComboBoxItemsRequestedEventArgs e) 
        
            { 
        
                string selectedSkin = e.Context["SelectedSkin"].ToString(); 
        
                string selectedWidth = e.Context["SelectedWidth"].ToString(); 
        
                //custom code here ... 
        
            }

You can find the full source code in this Code Library:
RadComboBox Prometheus - Context property - demo

More information on how to use the context property in a web service here:
Populate from webservice

Hope this helps.

Sincerely yours,
Veskoni
the Telerik team

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