Caused by 

https://groups.google.com/a/chromium.org/forum/#!topic/blink-dev/GbVcuwg_QjM/discussion%5B1-25%5D
https://stackoverflow.com/a/45495974
https://stackoverflow.com/a/45746963

Workaround attached

As we can find in telerik documentations, there are various controls properties that can be set from web.config. Like skin, render mode, etc.
It is done with a list of keys under <appSettings> section in the web.config. See link below.
https://docs.telerik.com/devtools/aspnet-ajax/general-information/web-config-settings-overview#control-properties-you-can-set-from-the-webconfig

My sugestion is to add in this list the localization path property. So we can centralize the resources files location for big projects, like a web site under IIS with many webapplication under one site.

As part of the Fall Creators update, Microsoft are releasing SDKs for their Fluent design system for UWP app design.

It would be great if Telerik could expand their skins to include controls designed to mimic the look and feel of the Fluent design including, where possible, Acrylic, Parallax, and Reveal.   I believe that light or dark themes will be standard on the Fluent design, but users will be able to incorporate the their accent colour preference.  So, at the least it would be great to have fluent light, and fluent dark skins with an easy method of similarly changing the accent colour.

Of course, not all of the functionality of UWP will be possible for ASP.NET AJAX, but since Fluent is likely to become the new standard for UWP app design, I believe that users will come to expect similar skins in their web-apps.

See https://docs.microsoft.com/en-us/windows/uwp/layout/design-and-ui-intro for more info.

There is a black line that has appeared in my RadMenu.

The problem can be solved by adding a display: none in the following class:

.RadMenu .rmGroup:before, .RadMenu .rmMultiColumn:before, .RadMenu .rmScrollWrap>.rmHorizontal:before, .RadMenu .rmScrollWrap>.rmVertical:before

Add ability to define Telerik specific ConfigSectionHandler for their settings like others (e.g.,log4Net) do.

This makes configuring environments much easier. All I need to do is point to *.Dev.config, *.Stage.config and my application is ready for the new environment.


For example, the following settings:

<configuration>
  <configSections>
    <section name="myConfigSection" type="CurrentApp.ConfigurationSectionHandler, Current" />
  </configSections>
  <myConfigSettings configSource="App_Data\Configs\MyConfigSection.config" />
  <appSettings>
    <add key="Environment" value="Local.Local"/>
...
    <add key="Telerik.ScriptManager.TelerikCdn" value="Enabled"/>
    <add key="Telerik.ScriptManager.TelerikCdn.BaseSecureUrl" value="https://yourSite.com/cdn/TelerikScripts" />
    <add key="Telerik.ScriptManager.TelerikCdn.BaseUrl" value="http://yourSite.com/cdn/TelerikScripts" />
    <add key="Telerik.ScriptManager.TelerikCdn.CombinedScript" value="Enabled" />
    <add key="Telerik.Skin" value="Bootstrap" />
    <add key="Telerik.StyleSheetManager.TelerikCdn" value="Enabled"/>
    <add key="Telerik.StyleSheetManager.TelerikCdn.BaseSecureUrl" value="https://yourSite.com/cdn/TelerikSkins" />
    <add key="Telerik.StyleSheetManager.TelerikCdn.BaseUrl" value="http://yourSite.com/cdn/TelerikSkins" />
    <add key="Telerik.StyleSheetManager.TelerikCdn.CombinedResource" value="Disabled" />
    <add key="Telerik.Web.UI.StyleSheetFolders" value="~/Content/; ~/" />
...
  <appSettings>
<configuration>


can be changed to:

<configuration>
  <configSections>
    <section name="telerikSettings" type="Telerik.ConfigurationSectionHandler, Telerik" />
  </configSections>
  <appSettings configSource="App_Data\Configs\Local.config" />
  <telerikSettings> <!-- This section does not exist and the keys are currently inside the local.config file -->
    <add key="Telerik.ScriptManager.TelerikCdn" value="Enabled"/>
    <add key="Telerik.ScriptManager.TelerikCdn.BaseSecureUrl" value="https://yourSite.com/cdn/TelerikScripts" />
    <add key="Telerik.ScriptManager.TelerikCdn.BaseUrl" value="http://yourSite.com/cdn/TelerikScripts" />
    <add key="Telerik.ScriptManager.TelerikCdn.CombinedScript" value="Enabled" />
    <add key="Telerik.Skin" value="Bootstrap" />
    <add key="Telerik.StyleSheetManager.TelerikCdn" value="Enabled"/>
    <add key="Telerik.StyleSheetManager.TelerikCdn.BaseSecureUrl" value="https://yourSite.com/cdn/TelerikSkins" />
    <add key="Telerik.StyleSheetManager.TelerikCdn.BaseUrl" value="http://yourSite.com/cdn/TelerikSkins" />
    <add key="Telerik.StyleSheetManager.TelerikCdn.CombinedResource" value="Disabled" />
    <add key="Telerik.Web.UI.StyleSheetFolders" value="~/Content/; ~/" />
  </telerikSettings>
...
</configuration>


or directly point to external configuration file:

<configuration>
  <configSections>
    <section name="telerikSettings"
             type="Telerik.ConfigurationSectionHandler, Telerik" />
  </configSections>
  <appSettings configSource="App_Data\Configs\Local.config" />
  <telerikSettings configSource="App_Data\Configs\Telerik.config" />
...
</configuration>

I have a standard Asp.Net checkbox and a radcheckbox on my webform. But when I configure a sqldatasource and want to add a where clause. Set that to control and want to select the radcheckbox, then only the standard .net checkbox appears in the list. Radcheckbox does not appear. 

Check the attached screenshot for more information.

Problem:

With the latest version of Chrome 61 the context menu is not positioning correctly in the treeview. It only happens when the treeview is longer than the window height and there are scrollbars. The EnableScreenBoundaryDetection should be enabled too (it is enabled by default).

Reproduction: see this video for a repro https://www.screencast.com/t/Reehai09gMP. The problem does not happen in the Chrome versions prior 61.

Details and Resolution: 

The context menu positioning problem is due to the following breaking change in Chrome 61 (see release notes at https://blog.chromium.org/2017/08/chrome-61-beta-javascript-modules.html):

To align with the spec and preserve browser consistency, the scrollingElement is now the documentElement in standards mode.
Chrome 61 has changed the behavior of document.scrollingElement to return document.documentElement instead of document.body to match the CSSOM View specification and this broke the positioning of the context menu when the EnableScreenBoundaryDetection is enabled.

Solution 1
Place the following override over the RadTreeView declaration:

<script>
Telerik.Web.UI.RadMenu._getViewPortSize = function () {
        var viewPortSize = $telerik.getViewPortSize();
  
        // The document scroll is not included in the viewport size
        // calculation under FF/quirks and Edge.     
        var quirksMode = document.compatMode != "CSS1Compat";
        if (($telerik.isFirefox && quirksMode) || Telerik.Web.Browser.edge) {
            viewPortSize.height += document.body.scrollTop;
            viewPortSize.width += document.body.scrollLeft;
        }
        else if (Telerik.Web.Browser.chrome) {
            viewPortSize.height += Math.max(document.body.scrollTop, document.scrollingElement.scrollTop);
            viewPortSize.width += Math.max(document.body.scrollLeft, document.scrollingElement.scrollLeft);
        }
  
        return viewPortSize;
    };
</script>
<telerik:RadTreeView RenderMode="Lightweight" ID="RadTreeView2" runat="server">
    <ContextMenus>
        <telerik:RadTreeViewContextMenu ID="RadTreeViewContextMenu1"runat="server"  RenderMode="Lightweight">
            <Items>
                ...


Solution 2
Set EnableScreenBoundaryDetection to false. This will disable the screen boundary detection and some parts of the context menu could be rendered beneath the browser borders when there isn't enough space to be rendered on the visible screen. You will have to use the browser scrollbars to show the hidden part of the menu.

The issue is scheduled for fixing in R3 2017 SP1, the release date of which is not yet decided. Please use the provided solutions above until the SP1 goes out officially.

Javascript errors are thrown when pie chart with custom skin is loaded. The issue is introduced as of version 2017.1.118.

Code to reproduce:
        <telerik:RadHtmlChart ID="Telerik1" runat="server" Height="250px" Width="250px" EnableEmbeddedSkins="false" Skin="CMS_Black">
            <ChartTitle Text="Financial Aid Status1112">
                <Appearance>
                    <TextStyle Color="Red" FontSize="12" FontFamily="Verdana" Margin="11" Padding="22"></TextStyle>
                </Appearance>
            </ChartTitle>
            <PlotArea>
                <Series>
                    <telerik:PieSeries Name="TypeMemberCount1" NameField="Name" DataFieldY="Value">
                        <LabelsAppearance>
                            <ClientTemplate>
                               #=dataItem.Name#: #=dataItem._Value# (#=dataItem._Percentage#%)
                            </ClientTemplate>
                        </LabelsAppearance>
                    </telerik:PieSeries>
                </Series>
            </PlotArea>
            <Legend>
                <Appearance Position="Right" Visible="true">
                </Appearance>
            </Legend>
        </telerik:RadHtmlChart>


Code bihind:

    protected void Page_Load(object sender, EventArgs e)
    {
        Telerik1.DataSource = GetData();
        Telerik1.DataBind();

    }
    private DataTable GetData()
    {
        DataTable dt = new DataTable("ChargeData");
        
        dt.Columns.Add("Id", Type.GetType("System.Int32"));

        dt.Columns.Add("Name", Type.GetType("System.String"));
        dt.Columns.Add("Value", Type.GetType("System.Int32"));
        dt.Columns.Add("_Value", Type.GetType("System.Int32"));
        dt.Columns.Add("_Percentage", Type.GetType("System.Int32"));

        dt.Rows.Add(1, "Item 1", 10, 34, 10);
        dt.Rows.Add(2, "Item 2", 65, 34, 65);
        dt.Rows.Add(3, "Item 3", 25, 34, 25);
        return dt;
    }


web.config:

    <add key="Telerik.Skin" value="CMS_Black"/>

Ticket 1113172 

Adding a request as per the link below:

http://www.telerik.com/forums/javascript-intellisense-option-missing-in-vs-2017

Admin update:
Here are links to updated documentation that explains how to use JavaScript intellisense in VS 2017
- https://docs.telerik.com/devtools/aspnet-ajax/general-information/integration-with-visual-studio/how-to-use-javascript-intellisense-for-the-telerik-controls
- https://docs.telerik.com/devtools/aspnet-ajax/general-information/using-jquery/jquery-intellisense

RadGrid's footer has wrong color in Metro skin - black text over black background. The problem is specific for Classic render mode.

Lightweight stylesheets for Grid load background images from http://aspnet-skins.telerikstatic.com/ajaxz/2017.2.711/Telerik/Grid/sprite.png; 

 https://www.screencast.com/t/UgqUZbqenpj5

Would it be possible to make the RadProgressBar fully functional at design time ?  

Currently any property changes you make in design time do not show on a form that's in design view

Being able to set height, width etc and have it show in design time would be very helpful

Thanks 

Load in IE this demo: http://demos.telerik.com/aspnet-ajax/editor/examples/overview/defaultcs.aspx

Enter in HTML mode - <p><a href="stm:b4f0c9ac-9a08-4c9f-8caf-39ccd4a83fc9" class="stm" contenteditable="false">Statement 111</a></p>

Switch to Design mode

Search for Statement with the Find and Replace dialog

The dialog won't be able to locate and highlight the link

Workaround: 

.RadListBox .rlbEmptyMessage {
    font-style: italic;
    text-align: center;
    filter: alpha(opacity=80);
    opacity: .8;
    position: absolute;
}

 I am attaching 2 pictures to show what's happening in version 2017.2.621.  In the newer release I have to set the font & size specifically or the text is larger that the box.  It was not this way on previous releases.
Here is the code  I am using to get it to display properly.  However, it did work (as in picture 1) with out the specific font items before.

<telerik:RadComboBox ID="RCB1" runat="server" DataSourceID="SqlDataState" DataTextField="abbreviation" DataValueField="abbreviation" Height="200"  MarkFirstMatch="true" Skin="Office2010Blue" Font-Names="Open Sans" Font-Size=".73em" ForeColor="#64758F" onFocus="this.select()"  Width="150px" EmptyMessage="Choose State...">
</telerik:RadComboBox>