Last Updated: 22 Mar 2019 11:10 by ADMIN
I am exporting all the appointments using the RadScheduler's Export Calendar functionality (RadScheduler.ExportToICalendar(apptCollection, true)). 

I have the scheduler working with both regular and recurring appointments in my project with RadScheduler along with different timezone for each of the appointments within the scheduler properly. 

However, when I export the same through the above API as an ICS file, I am seeing that the date time is always coming out as UTC on recurring events giving me the wrong results in Outlook. 
Last Updated: 27 Mar 2019 21:46 by ADMIN
After the alert was confirmed, a Post Back is expected which does not happen due to a JavaScript exception: Cannot read property 'toString' of null
Last Updated: 21 Mar 2019 16:14 by ADMIN
Created by: Suwandi
Comments: 1
Category: UI for ASP.NET AJAX
Type: Feature Request
i have a feature request

- Image map input

Based mapify,js sample below :

I have use it before, storing areas and values in the databases, but the output is hyperlink.

I want it as input control that have selectedvalue property, i want server side value as the result. Maybe i can borrow hiddenfield or something. But it's wasting time.

Please, add image control input into your collection. It's very usefull i guess.
Last Updated: 20 Mar 2019 16:36 by ADMIN

Can be observed in the Barcode - Barcode Types online demo.

Barcode Type: Code128

Required Value: IEö6014649

Resulted Value: IE996014649

Last Updated: 20 Mar 2019 15:21 by ADMIN
Created by: Andy
Comments: 1
Category: Scheduler
Type: Bug Report
Using the following setup, resize the appointment so that when releasing the mouse, it is over the appointment as demonstrated in the attached video with the attached project.

<telerik:RadScheduler RenderMode="Lightweight" Font-Size="14px" runat="server" ID="RadScheduler1"

    function OnClientAppointmentResizeEnd(sender, args) {
    function OnClientAppointmentClick(sender, args) {

private const string ProviderSessionKey = "Telerik.Web.Examples.Scheduler.XmlSchedulerProvider.DefaultCS";
    // You can safely ignore this method.
    // Its purpose is to limit the changes to the underlying data only to the active user session.
    protected void Page_Init(object sender, EventArgs e)
        Telerik.Web.UI.XmlSchedulerProvider provider;
        if ((Session[ProviderSessionKey] == null) || (!IsPostBack))
            provider = new Telerik.Web.UI.XmlSchedulerProvider(Server.MapPath("~/App_Data/Appointments.xml"), true);
            Session[ProviderSessionKey] = provider;
            provider = (Telerik.Web.UI.XmlSchedulerProvider)Session[ProviderSessionKey];
        RadScheduler1.Provider = provider;

Last Updated: 10 Apr 2019 15:28 by ADMIN
Bug introduced in build 2019.1.115+ causes 3 extra <p>&nbsp;</p> when user presses Enter key in FireFox.  Happens when Editor is in a Wizard with more than one step.  Bug does not occur in builds prior to 2019.1.115.

Try this to reproduce:

 <telerik:RadWizard runat="server" ID="rwMain" BorderStyle="Solid" BorderColor="LightGray" BorderWidth="1px" RenderMode="Lightweight" DisplayNavigationButtons="True">
            <telerik:RadWizardStep ID="RadWizardStep2" Title="Content Template" StepType="Step">
            <telerik:RadWizardStep ID="RadWizardStep3" Title="Content Editor" StepType="Step">
                <telerik:RadEditor ID="ContentEditor" runat="server" RenderMode="Lightweight"></telerik:RadEditor>
Last Updated: 21 Mar 2019 09:27 by ADMIN
Created by: Kasim
Comments: 1
Category: ComboBox
Type: Feature Request

In combo box once a value is selected there is no option to clear the selection. We can have an additional button outside the combo box to achieve the same.

This will require some additional coding.

Since this is a regular scenario why can't there be a property within the RadCombo Box that makes clear selection button visible next to the combo box drop-down button and does the task of clearing the selection?

Last Updated: 26 Mar 2019 07:56 by ADMIN
The filter expression that we build should use ToUpperCase in the build expresssion.
Last Updated: 20 Mar 2019 15:22 by ADMIN

<telerik:RadNumericTextBox ID="RadNumericTextBox2" runat="server" MaxValue="9223372036854775807" Value="545445456456465454">
    <NumberFormat AllowRounding="false" DecimalDigits="0" />

MaxValue property is set to use the maximum value of int64: 9223372036854775807

Original value introduced is: 545445456456465454

Value becomes:  545445456456465000

Last Updated: 20 Mar 2019 14:26 by ADMIN
When there is at least one ColumnGroup which is not assigned to any of the columns in RadGrid, exporting to Excel throws an exception "Index was outside the bonds of the array"
Last Updated: 10 Apr 2019 15:41 by ADMIN

This can be reproduced with the following sample:

<telerik:RadWindow runat="server" ID="RadWindowWithEditor" Height="1000px" OnClientShow="fixEditor"
        <telerik:RadEditor RenderMode="Lightweight" runat="server" ID="RadEditor1" Width="700px" Height="700px">
Lorem ipsum dolor sit amet
<asp:Button ID="Button5" Text="open the RadWindow" runat="server" />
<script type="text/javascript">
    function fixEditor() {
        setTimeout(function () {
            $find("<%=RadEditor1.ClientID %>").onParentNodeChanged();
        }, 100);


Last Updated: 15 Mar 2019 08:33 by ADMIN
Created by: Alex Kapitanovskyy
Comments: 1
Category: AsyncUpload
Type: Bug Report
After the update from version 2018.2.710 to 2019.1.2015 the files bigger than 2 MB are cut off (up to 2 MB) and broken during the upload.
Last Updated: 18 Mar 2019 12:47 by ADMIN
We've a RadEditor controls, we want disable editting in mobile render mode. How can we do it?

Here examle:

Case 1. RadEditor is LightWeight:

<telerik:RadEditor ID="redEdt" runat="server"    RenderMode="LightWeight"     Width="100%" Height="500px" ></telerik:RadEditor>

                $(document).ready(function () {
                    var editor = $telerik.findControl(document.documentElement, "redEdt");


--> It work great. All buttons in toolbar disabled.

Case 2. RadEditor is Mobile:

<telerik:RadEditor ID="redEdt" runat="server"    RenderMode="Mobile"     Width="100%" Height="500px" ></telerik:RadEditor>

                $(document).ready(function () {
                    var editor = $telerik.findControl(document.documentElement, "redEdt");


--> System error: 

M.enableContextMenus is not a function
    at c.RadEditor.enableEditing
In Development
Last Updated: 11 Apr 2019 12:35 by ADMIN
Created by: Milind
Comments: 2
Category: MultiColumnComboBox
Type: Feature Request



Load on demand feature is requested in multicolumn combobox




Milind Shevade

Last Updated: 30 Apr 2019 19:27 by ADMIN
Currently, to make the MultiColumnComboBox control work in an EditTemplate of a Grid in Batch EditMode, custom implementation is needed as explained in Batch Editing Working With Templates and demonstrated here: Show short date, edit full date with batch editing
Pending Review
Last Updated: 08 Mar 2019 10:41 by Dan Avni
Created by: Dan Avni
Comments: 0
Category: UI for ASP.NET AJAX
Type: Feature Request
When resizing a column in RTL, expectation is to use the left side of a column to expand/shrink it. Instead I have to use the right side. Grabbing the left side resizes the next column on the left and is very confusing for people who are used to think in RTL
Last Updated: 07 Mar 2019 12:03 by ADMIN

When virtualization is enabled for RadGrid, NeedDataSource is called at every Post back with RebindReason = ExplicitRebind, regardless of the event target.

Steps to reproduce:

Use the following Code snippets for the runnable sample and debug the NeedDataSource event while doing post backs using other controls. For instance, you can use the RadButton1 from these snippets to make a standard Post Back.


        <telerik:RadAjaxManager ID="RadAjaxManager1" runat="server">

        <telerik:RadAjaxLoadingPanel ID="RadAjaxLoadingPanel1" runat="server" Skin="Default"></telerik:RadAjaxLoadingPanel>
        <telerik:RadButton runat="server" ID="RadButton1" Text="Postback" AutoPostBack="true" />

        <telerik:RadGrid ID="RadGrid1" runat="server" AllowPaging="false" Width="800px" OnNeedDataSource="RadGrid1_NeedDataSource">
            <MasterTableView AutoGenerateColumns="true" DataKeyNames="OrderID">
                <Scrolling AllowScroll="true" />
                <Virtualization EnableVirtualization="true" InitiallyCachedItemsCount="500" ItemsPerView="200" RetrievedItemsPerRequest="200" LoadingPanelID="RadAjaxLoadingPanel1" />


    protected void RadGrid1_NeedDataSource(object sender, GridNeedDataSourceEventArgs e)
        RadGrid1.DataSource = OrdersTable();

    private DataTable OrdersTable()
        DataTable dt = new DataTable();

        dt.Columns.Add(new DataColumn("OrderID", typeof(int)));
        dt.Columns.Add(new DataColumn("OrderDate", typeof(DateTime)));
        dt.Columns.Add(new DataColumn("Freight", typeof(decimal)));
        dt.Columns.Add(new DataColumn("ShipName", typeof(string)));
        dt.Columns.Add(new DataColumn("ShipCountry", typeof(string)));

        dt.PrimaryKey = new DataColumn[] { dt.Columns["OrderID"] };

        for (int i = 0; i < 10000; i++)
            int index = i + 1;

            DataRow row = dt.NewRow();

            row["OrderID"] = index;
            row["OrderDate"] = new DateTime(DateTime.Now.Year, DateTime.Now.Month, DateTime.Now.Day, 0, 0, 0).AddHours(index);
            row["Freight"] = index * 0.1 + index * 0.01;
            row["ShipName"] = "Name " + index;
            row["ShipCountry"] = "Country " + index;


        return dt;

Last Updated: 20 Mar 2019 15:35 by ADMIN
Some of the arrows in the Mobile Menu are missing in Chrome

<telerik:RadMenu ID="RadMenu1" RenderMode="Mobile" runat="server" ></telerik:RadMenu>

protected void Page_Load(object sender, EventArgs e)
    RadMenu1.RenderMode = RenderMode.Mobile;
    RadMenu1.Width = 300;
    for (int i = 0; i < 10; i++)
        var radmenuItem = new RadMenuItem();
        radmenuItem.Text = "demo radmenu item " + i.ToString();
        for (int j = 0; j < 10; j++)
            var radmenuItemChild = new RadMenuItem();
            radmenuItemChild.Text = "demo radmenu item child " + j.ToString();
Last Updated: 06 Mar 2019 15:22 by ADMIN

This behavior is occuring only if use firefox browser:

1. If you set the EditModes within backend only to EditMode.Preview then all html table elements within content appears like in EditMode.Design with dashed borders.

You can reproduce it on your own demo site simple disable EditMode.Html and EditMode.Design.

Now you see the dashed table element borders like in design mode....

2. Sometimes if you switch edit mode from Html to Preview the same affect is occuring with displaying dashed border with html table elements. If you switch directly from Design mode to preview mode all works fine.

3. If you resize the editor in preview mode with resize button on right lower corner the display switch immediatly to dashed borders for all html table elements...

At the moment we use a fix to reset preview mode: If only preview mode is activated for the editor we set the preview mode again with a timeout of 250 ms after loading of dialog is ready (if the timeout is to low no affect appear).
Sys.Application.add_load(function(){ window.setTimeout(function(){$find('AjaxEditorClientID').set_mode(4)},250); }); });


Last Updated: 05 Mar 2019 12:36 by ADMIN
The memory usage consumed by RadHtmlChart increase on each AJAX update and is never released.