Hi,
Is there a way to enable groupable: true after a grid was created?
Thks

I have a TreeView and buttons to expand and collapse the tree within an AjaxPanel.
When the Expand or Collapse button is clicked, I call a js function to perform the action. However, there's a slight delay and it looks like nothing is occurring.
I'd like to show the Loading Panel over the TreeView at this time. I've seen the demo to explicitly show the LoadingPanel but that does not seem to be working. In our application, the treeview will either use load on demand or client side loading. I can get the Loading panel to appear for the LOD tree. But when the tree is loading client side, the Loading Panel does not appear. I assume because there is no postback?
How can I get the panel to appear in this case?

I'm using EditItemTemplate. I have included a user control in it.The user control has 2 drop downs. When I click update on the form, I want to retrieve the selected values from these 2 drop downs. How can do this using the ExtractValue method of RadDataFormEditableItem.
Thanks in Advance,
Siddharth Tandon.
The documentation here:
http://docs.telerik.com/devtools/aspnet-ajax/controls/grid/data-binding/model-binding-and-strongly-typed-data-controls-support
gives a Signature for Modelbinding Delete like this.
public void DeleteProduct(int ProductID
)
I tried to implement it, but first I get an ASP.NET error, saying the Method has to allow Reference-Types, because the Grid wants to pass NULL to it.
I changed it to (int? ProductID), the error disappeared, but still the key ID null, although I have specified the
DataKeyNames="ProductID"
Also:
SelectMethod="Select" DeleteMethod="Delete" UpdateMethod ="Update" InsertMethod ="Insert"
Attributes in the RadGrid Tag, sometimes in the MasterTableView Tag, does this make a difference ?
The question is not just on Delete, Update behaves in the same way, saying it hast to be an "int?"
May be I'm mixing up different binding models here ?
Why is Delete(int ProductId) not working ?
Is thery any Switch to say "I want to do Model binding" ?

Can I use the control to upload (by drag and drop) a folder ( folder and all files)?
Thanks
Paolo
Hi all,
How to export RadChart to pdf ?
I have tried and generated pdf but not able to download.
Please help me.
Thanks
I have a grid on a page, and for the edit settings, I have it set to Template with my own built add/edit area. In this area, I have a RadEditor and two RadDateTimePickers. On my MasterPage, I have the Telerik ScriptManager with some JS files loaded. When I try to add or edit an item for my grid, I am presented with my entry area BUT I am unable to select a date from either of the RadDateTimePickers. The console shows "Uncaught TypeError: p.onEvent is not a function" in the Telerik.Web.UI.WebResource.axd.
My markup is this:
<asp:Content ID="Content2" ContentPlaceHolderID="MainContent" runat="server"> <div class="grid-outline"> <b>Alerts</b> <telerik:RadAjaxLoadingPanel runat="server" ID="radLpAlerts"></telerik:RadAjaxLoadingPanel> <telerik:RadGrid runat="server" ID="radAlerts" AllowPaging="True" AllowSorting="True" ShowHeader="True" GridLines="None" OnNeedDataSource="radAlerts_OnNeedDataSource" OnItemCommand="radAlerts_OnItemCommand" OnItemDataBound="radAlerts_OnItemDataBound" OnInsertCommand="radAlerts_OnInsertCommand" OnUpdateCommand="radAlerts_OnUpdateCommand" OnDeleteCommand="radAlerts_OnDeleteCommand"> <ClientSettings AllowColumnsReorder="False" EnableRowHoverStyle="True" EnablePostBackOnRowClick="True"> <Selecting AllowRowSelect="True"></Selecting> <Scrolling UseStaticHeaders="True"></Scrolling> </ClientSettings> <MasterTableView DataKeyNames="alert_id" AutoGenerateColumns="False" AllowMultiColumnSorting="True" EnableHeaderContextMenu="True" CommandItemDisplay="TopAndBottom" Height="100%"> <NoRecordsTemplate>No Active Alerts.</NoRecordsTemplate> <CommandItemSettings ShowAddNewRecordButton="True" ShowCancelChangesButton="False" ShowSaveChangesButton="False" ShowRefreshButton="True" /> <Columns> <telerik:GridEditCommandColumn ButtonType="ImageButton" UniqueName="EditCommandColumn"> <HeaderStyle Width="1%"></HeaderStyle> <ItemStyle VerticalAlign="Top" HorizontalAlign="Left" Width="1%"></ItemStyle> </telerik:GridEditCommandColumn> <telerik:GridButtonColumn ConfirmText="Deactivate this item?" ConfirmDialogType="RadWindow" ConfirmTitle="Deactivate" ButtonType="ImageButton" CommandName="Delete" ConfirmDialogHeight="160px" ConfirmDialogWidth="250px" UniqueName="DeleteColumn"> <HeaderStyle Width="1%"></HeaderStyle> <ItemStyle VerticalAlign="Top" Width="1%"></ItemStyle> </telerik:GridButtonColumn> <telerik:GridBoundColumn DataField="alert_id" HeaderText="ID" Visible="False"></telerik:GridBoundColumn> <telerik:GridBoundColumn DataField="alert_text" HeaderText="Type" AutoPostBackOnFilter="True"> <HeaderStyle Width="50%"></HeaderStyle> <ItemStyle VerticalAlign="Top" HorizontalAlign="Left"></ItemStyle> </telerik:GridBoundColumn> <telerik:GridDateTimeColumn DataField="start_date" HeaderText="Start Date" FilterControlWidth="80%" AutoPostBackOnFilter="True"> <HeaderStyle Width="10%"></HeaderStyle> <ItemStyle VerticalAlign="Top" HorizontalAlign="Left"></ItemStyle> </telerik:GridDateTimeColumn> <telerik:GridDateTimeColumn DataField="end_date" HeaderText="End Date" FilterControlWidth="80%" AutoPostBackOnFilter="True"> <HeaderStyle Width="10%"></HeaderStyle> <ItemStyle VerticalAlign="Top" HorizontalAlign="Left"></ItemStyle> </telerik:GridDateTimeColumn> <telerik:GridCheckBoxColumn DataField="inactive" HeaderText="Inactive" AutoPostBackOnFilter="True"> <HeaderStyle Width="5%"></HeaderStyle> <ItemStyle VerticalAlign="Top" HorizontalAlign="Left" Width="5%"></ItemStyle> </telerik:GridCheckBoxColumn> </Columns> <EditFormSettings EditFormType="Template"> <EditColumn UniqueName="alert_id"></EditColumn> <FormTemplate> <table class="editTable"> <tr> <td style="width: 50%;"> <telerik:RadEditor runat="server" ID="radAlertText" RegisterWithScriptManager="True" EnableResize="True" Width="100%"></telerik:RadEditor> <asp:RequiredFieldValidator runat="server" ID="rvAlertText" ControlToValidate="radAlertText" ErrorMessage="Please enter alert text" Display="Dynamic">*</asp:RequiredFieldValidator> </td> </tr> <tr> <td> <telerik:RadDateTimePicker runat="server" ID="radAlertStartDateTime" Width="90%"> <Calendar> <SpecialDays> <telerik:RadCalendarDay Repeatable="Today"> <ItemStyle BackColor="LightGray" Font-Bold="True" BorderStyle="Solid" BorderColor="Black" BorderWidth="1px"></ItemStyle> </telerik:RadCalendarDay> </SpecialDays> </Calendar> <TimeView Interval="00:15:00" Columns="6"></TimeView> <DateInput DisplayDateFormat="yyyy-MM-dd h:mm tt" DateFormat="yyyy-MM-dd h:mm tt" EmptyMessage="Alert Start Date/Time"></DateInput> </telerik:RadDateTimePicker> <asp:RequiredFieldValidator runat="server" ID="rvStartDate" ControlToValidate="radAlertStartDateTime" ErrorMessage="Please enter a Starting Date" Display="Dynamic">*</asp:RequiredFieldValidator> </td> </tr> <tr> <td> <telerik:RadDateTimePicker runat="server" ID="radAlertEndDateTime" Width="90%"> <Calendar> <SpecialDays> <telerik:RadCalendarDay Repeatable="Today"> <ItemStyle BackColor="LightGray" Font-Bold="True" BorderStyle="Solid" BorderColor="Black" BorderWidth="1px"></ItemStyle> </telerik:RadCalendarDay> </SpecialDays> </Calendar> <TimeView Interval="00:15:00" Columns="6"></TimeView> <DateInput DisplayDateFormat="yyyy-MM-dd h:mm tt" DateFormat="yyyy-MM-dd h:mm tt" EmptyMessage="Alert End Date/Time"></DateInput> </telerik:RadDateTimePicker> </td> </tr> <tr> <td> <asp:CheckBox runat="server" ID="cbInactive" Text="Inactive" Checked="False" /> </td> </tr> <tr> <td colspan="2"> <telerik:RadSpell runat="server" ID="rsSpell" ControlsToCheck="txtGradeType" IsClientID="True" SpellCheckProvider="PhoneticProvider" /> </td> </tr> <tr> <td colspan="2"> </td> </tr> <tr> <td colspan="2" style="text-align: left"> <asp:Button runat="server" ID="btnUpdate" Text='<%# (Container is GridEditFormInsertItem) ? "Insert" : "Update" %>' CommandName='<%# (Container is GridEditFormInsertItem) ? "PerformInsert" : "Update" %>' /> <asp:Button runat="server" ID="btnCancel" Text="Cancel" CommandName="Cancel" CausesValidation="False" /> </td> </tr> </table> </FormTemplate> </EditFormSettings> </MasterTableView> </telerik:RadGrid> </div></asp:Content>Is there something I have to do to get the controls to play nice on the page?
I have been battling with this for days and cannot find a solution. There is not a hard-coded height anywhere. Why is the height of this window so big overall and how can I fix it?
<telerik:GridButtonColumn CommandName="Delete" Text="Delete" UniqueName="DeleteColumn"></telerik:GridButtonColumn>ButtonType="ImageButton"