I have several comboboxes with checkboxes. I am setting their checked states from server side. The problem is I also want to append a comma at the end. How do I do that? What I've tried:

I am using ExportToExcel and successfully generate an XLSX file from a RadGrid. Here is my event handler that is triggered from a custom button, not the built-in export button:

My problem is that date columns are displayed correctly in the browser, but they are wrong and also changing in the resulting Excel file. I set the data format for my date columns as follows (as I generate all columns programmatically):

The Excel file has dates with a "wrong german" formatting, MM.dd.yyyy, and also MM/dd/yyyy. I cannot see why it formats one line like this and one like that. I'd be glad for a hint on how to get this correct.

Thanks and best regards,

Helge

I have a change password page on which I am using a RadTextBox in password mode. I want to show a checklist of all the constraints and show a green check sign next to it as the user enters the respective character similar to the attached image.

How can I achieve that?

I understand that a Ajax grid exporting to excel must be handled differently. In my research I found there are two ways to accomplish this. The only the remotely works is this

Adding this Javascript to the aspx page

                Sys.WebForms.PageRequestManager.getInstance().add_initializeRequest(initRequest);
                function initRequest(sender, args) {
                    if (args.get_postBackElement().id.indexOf("btnExportGrid") != -1) {
                        args.set_cancel(true);  //stop async request
                        sender._form["**EVENTTARGET"].value = args.get_postBackElement().id.replace(/\_/g, "$");
                        sender._form["**EVENTARGUMENT"].value = "";
                        sender._form.submit();
                        return;
                    }
                }

The problem is I get the following Javascript error

0x800a138f - JavaScript runtime error: Unable to set property 'value' of undefined or null reference

If I hit continue the grid exports. if I comment line out I get same error on the next line. I comment that out the export does not work.

Hello,

I have the following configuration for a GridBoundColumn where I wont user to filter out values of"0". RadGrid is bound to a DataTable in code-behind, where value comes as integer. This filtering does not seem to work.

 <telerik:GridBoundColumn  DataField="Net"  AllowFiltering="true" HeaderText="Net" UniqueName="Net" FilterControlWidth="30px" Aggregate="None"   ReadOnly="true">
                                                <HeaderStyle Width="35px" />
                                                 <FilterTemplate>
                                                    <telerik:RadComboBox ID="RadComboBoxNet" DataTextField="Net"  
                                                        DataValueField="Net" Height="200px" Width="90px" AppendDataBoundItems="true" SelectedValue='<%# TryCast(Container, GridItem).OwnerTableView.GetColumn("Net").CurrentFilterValue%>'
                                                        runat="server" OnClientSelectedIndexChanged="NetIndexChanged">
                                                        <Items>
                                                            <telerik:RadComboBoxItem Text="All" />
                                                            <telerik:RadComboBoxItem Text="0" />
                                                        </Items>
                                                    </telerik:RadComboBox>
                                                    <telerik:RadScriptBlock ID="RadScriptBlockNet" runat="server">
                                                        <script type="text/javascript">
                                                            function NetIndexChanged(sender, args) {
                                                                var tableView = $find("<%# TryCast(Container, GridItem).OwnerTableView.ClientID %>");
                                                                tableView.filter("Net", args.get_item().get_value().trim(), "GreaterThan");
                                                            }
                                                        </script>
                                                    </telerik:RadScriptBlock>
                                                </FilterTemplate>
                                            </telerik:GridBoundColumn>

Can somebody or support please point to the right direction.

Thank you !

I have the RadMenu below and i am selecting the RadMenuItem from Code behind. the menu is only 2 Levels.

I would like to Expand the Root Level of the Selected Menu

Please can you advise?

Thanks

Hello

I I have the following column setup ( it is part of the radgrid, this particular configuration provides necessary visual appearance . Other columns on the grid are filterable.)

<telerik:GridTemplateColumn AllowFiltering="true" HeaderText='Select' >
                                                   
   <FilterTemplate>
          <asp:CheckBox ID="chkSelectAll" runat="server"  OnClientClick ="CheckUncheckAll(this)" />
                                  
                 </FilterTemplate>                                                 
                                 <ItemTemplate>
                                                        <asp:CheckBox ID="chkStatus" runat="server"  />
                                                    </ItemTemplate>
                                                    <HeaderStyle Width="30px" HorizontalAlign="Center" />
                </telerik:GridTemplateColumn>

When I click on filter bar checkbox, I want to catch this event and process it in client-side javascript. It does not fire in this configuration. It does fire in <headertemplate> , but I need this setup for specific appearance.

Can somebody from telerik support point to the right combination of attributes/tags/events ? Thank you.

Is there a way to hide tree lines for top level items in a tree list? See the attached picture - I'm hoping to only show the tree lines for the items highlighted.