RadListbox is not working on server but working fine in local machine

[Santhosh]

Hi,
I am using 2 Radlistbox controls in my application for trnasferring items.
the item is transferring well when i press inbuilt transfer button but same it not working on server side after publishing my application in IIS.
i wrote below code:
<telerik:RadListBox runat="server" ID="RadListBoxSource" OnItemDataBound="RadListBoxSource_ItemDataBound"
OnTransferring="RadListBoxSource_Transferring" AllowTransferOnDoubleClick="true" AutoPostBack="true"
AllowTransfer="true" SelectionMode="Multiple" TransferToID="RadListBoxDestination"
AutoPostBackOnTransfer="true" OnSelectedIndexChanged="RadListBoxSource_SelectedIndexChanged">
</telerik:RadListBox>

<telerik:RadListBox runat="server" ID="RadListBoxDestination" AllowTransferOnDoubleClick="true"
EnableDragAndDrop="false" OnSelectedIndexChanged="RadListBoxDestination_SelectedIndexChanged"
SelectionMode="Multiple" OnItemDataBound="RadListBoxDestination_ItemDataBound" AutoPostBack="true"
AutoPostBackOnTransfer="true" />

in c# code behind:

protected void RadListBoxSource_Transferring(object sender, RadListBoxTransferringEventArgs e)
        {            
                if (e.SourceListBox.ID == "RadListBoxSource")
                {
                    if (e.Items.Count == e.SourceListBox.Items.Count)
                    {
                        RadListBoxSource.ClearSelection();
                    }
                    if (RadListBoxSource.SelectedIndex == -1)
                    {
                        if (e.SourceListBox.ButtonSettings.ShowTransferAll == true)
                        {
                            for (int i = 0; i < RadListBoxSource.Items.Count; i++)
                            {
                              if (RadListBoxSource.Items[i].Text == RadListBoxSource.Item[i].Value)
                                    RadListBoxSource.Items[i].Selected = false;
                                else
                                    RadListBoxSource.Items[i].Selected = true;
                            }
                            foreach (RadListBoxItem item in RadListBoxSource.SelectedItems)
                            {
                                AddToDestination(item.Text, item.Value);
                                BindListBoxes();
                            }
                            e.Cancel = true;
                        }                       
                    }
                    else
                    {
                        LeftLstboxSelection();
                        e.Cancel = true;
                    }
                }
                if (e.SourceListBox.ID == "RadListBoxDestination")
                {
                    if (e.Items.Count == e.SourceListBox.Items.Count)
                    {
                        RadListBoxDestination.ClearSelection();
                    }
                    if (RadListBoxDestination.SelectedIndex == -1)
                    {

                        if (e.SourceListBox.ButtonSettings.ShowTransferAll == true)
                        {
                            for (int i = 0; i < RadListBoxDestination.Items.Count; i++)
                            {
                   if (RadListBoxDestination.Items[i].Text == RadListBoxDestination.Items[i].Value)
                                    RadListBoxDestination.Items[i].Selected = false;
                                else
                                    RadListBoxDestination.Items[i].Selected = true;
                            }
                            foreach (RadListBoxItem item in RadListBoxDestination.SelectedItems)
                            {
                                AddToSource(item.Text, item.Value);
                            }
                            BindListBoxes();
                            e.Cancel = true;

                        }
                    }
                    else
                    {
                        RightLstboxSelection();
                        e.Cancel = true;
                    }
                }
                if (RadListBoxDestination.Items.Count == 0)
                {
                                    
                    btnExportTemplate.CssClass = "my_custom_button_gray_l";
                    btnExportTemplate.Enabled = false;
                }
                else
                {                                   
                    btnExportTemplate.CssClass = "my_custom_button_l";
                    btnExportTemplate.Enabled = true;
                }          
           
        }

after publishing on server item is not tranferring when  double click or selecting item.

Please support.waiting for quick response from Telerik Team


Thanks & Regards,
Santhosh Naik

[Dimitar Terziev]

Hello Santhosh,

Could you please check whether there are any JavaScript errors on the page once the site is deployed? Here and here are two help article giving instruction on how to troubleshoot such problems. Please review them and try to apply the provided solutions.

Regards,
Dimitar Terziev
the Telerik team