or

<telerik:RadStyleSheetManager ID="RadStyleSheetManager1" runat="server"></telerik:RadStyleSheetManager><telerik:RadComboBox ID="RadComboBox1" Skin="SilverSkin" EnableEmbeddedSkins="False" runat="server"> <Items> <telerik:RadComboBoxItem runat="server" Text="RadComboBoxItem1" /> <telerik:RadComboBoxItem runat="server" Text="RadComboBoxItem2" /> <telerik:RadComboBoxItem runat="server" Text="RadComboBoxItem3" /> </Items> <CollapseAnimation Type="OutQuint" Duration="200"></CollapseAnimation></telerik:RadComboBox><telerik:RadComboBox ID="RadComboBox2" Skin="Metro" EnableEmbeddedSkins="True" runat="server"> <Items> <telerik:RadComboBoxItem runat="server" Text="RadComboBox2 Item1" /> <telerik:RadComboBoxItem runat="server" Text="RadComboBox2 Item2" /> <telerik:RadComboBoxItem runat="server" Text="RadComboBox2 Item3" /> </Items> <CollapseAnimation Type="OutQuint" Duration="200"></CollapseAnimation></telerik:RadComboBox>// Server Side with RadTreeNode type works fine var node = new RadTreeNode(); node.Attributes.Add("id", "folder_" + dtrReader["folderID"]); // Web Service with RadTreeNodeData type and the DestinationHtmlElement is emptyvar node = new RadTreeNodeData(); node.Attributes.Add("id", "folder_" + dtrReader["folderID"]); <telerik:RadFileExplorer Skin="Vista" ID="radfileexplorer" VisibleControls="AddressBox,ContextMenus,Grid,Treeview,Toolbar" Height="500px" Width="800px" runat="server"><Configuration ViewPaths="~/Uploads/Linkdaten" UploadPaths="~/Uploads/Linkdaten" DeletePaths="~/Uploads/Linkdaten" /></telerik:RadFileExplorer>
<telerik:RadGrid ID="RadGrid1" runat="server" DataSourceID="SqlDataSource1" AllowAutomaticInserts="True" CellSpacing="0" GridLines="None" Skin="Black" style="height: 44px"> <MasterTableView autogeneratecolumns="False" datasourceid="SqlDataSource1" CommandItemDisplay="Top" DataKeyNames="idExterno" EditMode="PopUp"> <CommandItemSettings ExportToPdfText="Export to PDF"> </CommandItemSettings> <RowIndicatorColumn FilterControlAltText="Filter RowIndicator column"> <HeaderStyle Width="20px"></HeaderStyle> </RowIndicatorColumn> <ExpandCollapseColumn FilterControlAltText="Filter ExpandColumn column"> <HeaderStyle Width="20px"></HeaderStyle> </ExpandCollapseColumn> <Columns> <telerik:GridBoundColumn DataField="idExterno" FilterControlAltText="Filter idExterno column" HeaderText="idExterno" SortExpression="idExterno" UniqueName="idExterno" DataType="System.Int32" ReadOnly="True"> </telerik:GridBoundColumn> <telerik:GridBoundColumn DataField="Model" FilterControlAltText="Filter Model column" HeaderText="Model" SortExpression="Model" UniqueName="Model"> </telerik:GridBoundColumn> <telerik:GridBoundColumn DataField="indice" FilterControlAltText="Filter indice column" HeaderText="indice" SortExpression="indice" UniqueName="indice" DataType="System.Int32"> </telerik:GridBoundColumn> <telerik:GridBoundColumn DataField="Height" FilterControlAltText="Filter Height column" HeaderText="Height" SortExpression="Height" UniqueName="Height"> </telerik:GridBoundColumn> </Columns> <EditFormSettings InsertCaption="Add new Item" EditFormType="Template"> <EditColumn FilterControlAltText="Filter EditCommandColumn column"></EditColumn> <FormTemplate> <telerik:RadButton ID="RadButton2" runat="server" onclick="RadButton2_Click" Skin="Forest" Text="RadButton"> </telerik:RadButton> <br /> <telerik:RadTextBox ID="RadTextBox1" Runat="server" Skin="Web20"> </telerik:RadTextBox> </FormTemplate> </EditFormSettings> </MasterTableView> <FilterMenu EnableImageSprites="False"></FilterMenu> <HeaderContextMenu CssClass="GridContextMenu GridContextMenu_Default"></HeaderContextMenu></telerik:RadGrid>