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Disable or remove listbox button

7 Answers 522 Views

ListBox

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

7 Answers, 1 is accepted

answered on 13 Jul 2009, 12:59 PM

Hi mohan,

One suggestion would be cancel transferring item using args.set_cancel(true) in OnClientTransferring event. See the example.

aspx:

    
            <telerik:RadListBox runat="server" ID="RadListBoxSource" Height="200px" Width="230px" 
        
                OnClientTransferring="OnClientTransferring" AllowTransfer="True" TransferToID="RadListBoxDestination"> 
        
                <Items> 
        
                    <telerik:RadListBoxItem Text="Argentina" runat="server" /> 
        
                    <telerik:RadListBoxItem Text="Australia" runat="server" /> 
        
                    <telerik:RadListBoxItem Text="Brazil" runat="server" /> 
        
                </Items> 
        
            </telerik:RadListBox> 
        
            <telerik:RadListBox runat="server" ID="RadListBoxDestination" Height="200px" Width="200px"> 
        
            </telerik:RadListBox>

javascript:

    
            <script type="text/javascript"> 
        
            function OnClientTransferring(sender, args) 
        
            { 
        
                if(args.get_sourceListBox() != sender) 
        
                { 
        
                    args.set_cancel(true); 
        
                    alert('Cannot transfer the item.'); 
        
                } 
        
            } 
        
            </script>

-Shinu.

Accepted

answered on 13 Jul 2009, 03:03 PM

Hi Mohan,

As Shinu properly mentioned, one of the possible solutions is to use the client side API. The other option is to hide one of the transfer buttons. Example code:

    
                    function pageLoad() { 
        
                        var $ = $telerik.$; 
        
                        var listBox = $find("RadListBox1"); 
        
                        $(".rlbTransferToDisabled", listBox.get_element()).css("display", "none"); 
        
                    }

Kind regards,
Genady Sergeev
the Telerik team

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answered on 19 Jan 2010, 10:16 AM

Hello Wendy Hunt,

Unfortunately there is no way to this on the server. Currently RadListBox does not support API that allows you to configure which transfer buttons should appear. However, such API exists for the Reorder buttons. I will add this feature request to our PITS system and if you feel that such API will be helpfull, please vote for this feature. If there are more customers that demand it, we will implement it. The PITS work item is going to be visible forth from tomorrow

Sincerely yours,
Genady Sergeev
the Telerik team

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