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[Solved] LoadOnDemand with Master Pages and WebUserControls

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ComboBox

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

Jason Boland asked on 17 Aug 2009, 05:06 PM

I'm following the Multicolumn Combobox example I downloaded from your site.

I can get the following example to work fine on a stand alone ASPX page. When I introduce it into my environment which has Master Pages and WebUserControls I can't seem to get it working.

Here is the code. Only difference when it's moved to Masterpages/WebUserControls environment is that the Script Manager is on the main Master Page. Any ideas?

    
            <%@ Register Assembly="Telerik.Web.UI" Namespace="Telerik.Web.UI" TagPrefix="telerik" %>  
        
            <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">  
        
            <html xmlns="http://www.w3.org/1999/xhtml">  
        
            <head runat="server">  
        
                <title></title>  
        
                <style type="text/css">  
        
                    .column  
        
                    {  
        
                        float: left;  
        
                        text-align: left;  
        
                    }  
        
                </style>  
        
            </head>  
        
            <body>  
        
                <form id="form1" runat="server">  
        
                <div>  
        
                    <asp:ScriptManager ID="smMain" runat="server">  
        
                        <Scripts>  
        
                            <asp:ScriptReference Path="~/js/prototype-1.6.0.2.js" />  
        
                            <asp:ScriptReference Path="~/js/comboClientSide.js" />  
        
                        </Scripts>  
        
                    </asp:ScriptManager>  
        
                    <script type="text/javascript">  
        
                        var cb;  
        
                        function cb_onDataBound(pComboboxItem, pDropDownLine) {  
        
                            var customAttributes = pComboboxItem.get_attributes();  
        
                            pDropDownLine.update(  
        
                            '<span class="column" style="width:180px;">' + pComboboxItem.get_text() + '</span>'  
        
                            + '<span class="column" style="width:100px;">' + customAttributes.getAttribute("City") + '</span>'  
        
                            + '<span class="column" style="width:100px;">' + customAttributes.getAttribute("Region") + '</span>'  
        
                            + '<span class="column" style="width:100px;">' + customAttributes.getAttribute("SubRegion") + '</span>'  
        
                            + '<span class="column" style="width:100px;">' + customAttributes.getAttribute("Country") + '</span>'  
        
                        );  
        
                        }  
        
                        function pageLoad(sender, args) {  
        
                            initComboExtensions();  
        
                            cb = $find("<%= RadComboBox1.ClientID %>");  
        
                            cb.onDataBound = cb_onDataBound;  
        
                        }  
        
                    </script>  
        
                    <table border="0" width="100%" cellpadding="10px" bgcolor="#84a1c3">  
        
                        <tr>  
        
                            <td>  
        
                                <font color="black">&nbsp;<b>Information</b></font><br />  
        
                                <br />  
        
                                <hr />  
        
                            </td>  
        
                        </tr>  
        
                    </table>  
        
                    <table border="0" width="100%" cellpadding="10px" bgcolor="#84a1c3">  
        
                        <tr>  
        
                            <td>  
        
                                <br />  
        
                                <telerik:RadComboBox ID="RadComboBox1" runat="server" Width="300px" Height="200px" 
        
                                    DropDownWidth="950px" EnableLoadOnDemand="true" EnableItemCaching="true" OnClientItemsRequesting="OnClientItemsRequesting" 
        
                                    OnClientItemsRequested="OnClientItemsRequested" OnClientDropDownOpening="OnClientDropDownOpening">  
        
                                    <ExpandAnimation Type="none" />  
        
                                    <CollapseAnimation Type="none" />  
        
                                    <WebServiceSettings Path="~/Inventory/Webservices/wsInventory.asmx" Method="SearchCatalog" />  
        
                                    <HeaderTemplate>  
        
                                        <ul style="list-style: none">  
        
                                            <li><span class="column" style="width: 180px;">Name</span> <span class="column" style="width: 100px;">  
        
                                                City</span> <span class="column" style="width: 100px;">Region</span> <span class="column" 
        
                                                    style="width: 100px;">SubRegion</span> <span style="width: 100px;">Country</span>  
        
                                            </li>  
        
                                        </ul>  
        
                                    </HeaderTemplate>  
        
                                </telerik:RadComboBox>  
        
                            </td>  
        
                        </tr>  
        
                    </table>  
        
                </div>  
        
                </form>  
        
            </body>  
        
            </html>

    
             <WebMethod()> _  
        
                Public Function SearchCatalog(ByVal context As RadComboBoxContext) As RadComboBoxData  
        
                    Dim BLL As New Inventory  
        
                    Dim oDT As DataTable = BLL.SearchCatalog(context.Text)  
        
                    Dim comboData As New RadComboBoxData()  
        
                    Dim result As New List(Of RadComboBoxItemData)  
        
                    If Not IsNothing(oDT) Then 
        
                        If oDT.Rows.Count > 0 Then 
        
                            For Each oRow As DataRow In oDT.Rows  
        
                                Dim itemData As New RadComboBoxItemData()  
        
                                itemData.Text = oRow("Name").ToString()  
        
                                itemData.Value = oRow("CatalogID").ToString()  
        
                                itemData.Attributes("City") = oRow("City").ToString()  
        
                                itemData.Attributes("Region") = oRow("Region").ToString()  
        
                                itemData.Attributes("SubRegion") = oRow("SubRegion").ToString()  
        
                                itemData.Attributes("Country") = oRow("Country").ToString()  
        
                                result.Add(itemData)  
        
                            Next 
        
                        Else 
        
                            Dim itemData As New RadComboBoxItemData()  
        
                            itemData.Text = "No Results..." 
        
                            itemData.Value = "0" 
        
                            itemData.Attributes("City") = "" 
        
                            itemData.Attributes("Region") = "" 
        
                            itemData.Attributes("SubRegion") = "" 
        
                            itemData.Attributes("Country") = "" 
        
                            result.Add(itemData)  
        
                        End If 
        
                    End If 
        
                    comboData.Items = result.ToArray()  
        
                    Return comboData  
        
                End Function

[Solved] LoadOnDemand with Master Pages and WebUserControls

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