What is the best approach to AutoSize the contents of the columns in a RadMultiColumnComboBox?  Is there a method or property I can use?

We have just upgraded to the latest asp.net ajax version and excited about the new control 'RadMultiColumnComboBox', but we could not figure out how we can allow multiple selections.

Please let us know

Thanks,

Hi

Since updating to the latest release of UI for ASP.NET AJAY the RadContextMenu of my RadGrid is misaligned at the right edge of the screen. Even in your sample https://demos.telerik.com/aspnet-ajax/grid/examples/columns-rows/columns/context-menu/defaultcs.aspx when you open the context menu at the right side of the screen the context menu is nor aligned to the left (like it used to be).

Please ses the attached printscreen.

Kind regards
Felix

The new MultiColumnComboBox control does not have any server side events.  Can you provide the same server side event that you have for the ComboBox? 

RadCalendar and RadDatePicker cannot pass the following check by https://achecker.ca/checker/index.php

WCAG 2.0 guideline
Section

1.3 Adaptable: Create content that can be presented in different ways (for example simpler layout) without losing information or structure.
Success Criteria 1.3.1 Info and Relationships (A) 

Check 245: Data table with more than one row/column of headers does not use id and headers attributes to identify cells.

Repair: Add id and headers attributes to table cells so they identify the cells that relate to the headers.

Error Line 597, Column 8:
<table id="ctl00_ContentPlaceholder1_RadDatePicker1_calendar_Top" class="rcMainTable" summary="Table …

Steps to reproduce

Go to https://achecker.ca/checker/index.php

Paste https://demos.telerik.com/aspnet-ajax/datepicker/accessibilityandinternationalization/wcag2.0andsection508accessibility/defaultcs.aspx
or 
https://demos.telerik.com/aspnet-ajax/calendar/accessibility-and-internationalization/wcag-2.0-and-section-508-accessibility/defaultcs.aspx

See the results -> 

Check 245: Data table with more than one row/column of headers does not use id and headers attributes to identify cells.
Repair: Add id and headers attributes to table cells so they identify the cells that relate to the headers.
Error Line 568, Column 8:
<table id="ctl00_ContentPlaceholder1_RadDatePicker1_calendar_Top" class="rcMainTable" summary="Table ...


=======================================

WORKAROUND:

$telerik.$("table.rcMainTable tbody th").each(function (idx, el) {
    var thId = $telerik.$(el).attr("id");
    $telerik.$(el).siblings("td").attr("header", thId);
})

In RadEditor with Ribbon Bar Toolbar When we click  Type 1 Dropdown (Here "Font Name", "Real font size", "Foreground Color", "Background Color", "Apply CSS Class", "Paragraph Style" and "Undo") it is opened or expanded and if click on same expanded drop-down control it still remains open instead it should be closed(Toggle Behaviour) on any "Type 2" Dropdown then "Type 1" dropdown is still remaining open or expand.

<telerik:RadComboBox runat="server" ID="CB" AllowCustomText="true" HighlightTemplatedItems="true" EnableViewState="false" CheckBoxes="true" EnableLoadOnDemand="true" OnItemsRequested="CB_ItemsRequested" ></telerik:RadComboBox>

Specifically, note that CheckBoxes is true.

In some cases, the combo box's  item's text may have HTML tags in them, but we don't want that HTML to be interpreted, and we're happy that RadComboBox automatically encodes the Item's name.  For example, the Item's text might be <img src=xxx onerror=alert(0)> , and of course we don't want that javascript to run. 

However, we have found a case where the text is not properly escaped, in which case the javascript does run and the alert popup shows.  The error is in RadComboBox.CheckBoxes.js, in the _checkedItemsTextsFitInputWidth function.  That function is passed the comma separated string of all the selected item's text.  This function wants to measure the width of the string, and so it creates a div off-screen, and then pushes the checkedItemTexts string into the div.  If the checkedItemTexts string contains any HTML tags that contain javascript, then that javascript is executed, which can be a XSS attack.

When a RadColorPicker that only has the HSB or HSV palette is made visible or added during an AJAX request, it throws the following error:

Sys.ArgumentOutOfRangeException: Height should be an integer bigger than 1

This is caused by the lack of dimensions while the component is initializing on the client side and, for example, RGBSliders, manages to initialize correctly. The control must either have default dimensions for all modes, or to perform check for undefined dimensions provided by the browser, or both.

A workaround is to add the RGBSliders mode as the first mode so the control can initialize, and use a small JS handler that will switch to the HSB/HSV mode and hide the RGB mode.

Here follows an example that includes the workaround:

When the Map position is not on the top of the page, creating a new marker via the OnClick event argument location, the marker is not correctly positioned.

Using Firefox 64.0,  selecting an image doesn't appear the resizing handles which are located on each corner of the object

The control should provide support for the JAWS screen readers, which will enable it for use by visually impaired users.

More details are available in the following forum thread - https://www.telerik.com/forums/how-is-listbox-usable-for-screen-readers

I would like to suggest a new product for Telerik: a html5 document editor (so not a html editor) which can edit docx documents. Recently I stumbled on the new html5 document editor by Teamlab (see http://html5.teamlab.com/), which will get its first major release this summer. I think such a component would also be an excellent addition to the Telerik product line as well (and probably a nice competitive advantage), since you already have some experience with the SL RichTextBox. It's probably not an easy project, but in the many years I've been a Telerik customer, I've seen a number of amazing components been created, so please forgive me for the high expectations. Just to mention (and perhaps as extra fuel for your discussion with management ;-)), I would personally favour a new HTML5 based editor. The current ASP.NET AJAX RadEditor is great in what it does -> HTML editing. Docx editing is very different in my view, both feature-wise as in regards to user-experience. As you can see from the Teamlab editor, it for example includes pagination and printing. I think it uses a different method for rendering too, e.g. canvas/SVG for pixel-perfect rendering. Very important for users to have what they type and see displayed on the screen be exactly the same as what they print. Basically I'm suggesting a MS Word Light by Telerik, something I believe your current SL RichTextBox is as well.

Inconsistent Behavior of RadEditor with Ribbon Bar Toolbar for a different type of dropdown toolbar controls.

In RadEditor with Ribbon Bar Toolbar, there are two different types of drop-down control observed.

Type1 includes "Paste" and "Strip All Formatting" 
Type2 includes "Font Name", "Real font size", "Foreground Color", "Background Color", "Apply CSS Class", "Paragraph Style" and "Undo"


Issue1:
In RadEditor with Ribbon Bar Toolbar When "Type 1" Dropdown is opened or expanded and we click on any "Type 2" Dropdown then "Type 1" dropdown is still remain open or expand.

Issue2:
vice versa In RadEditor with Ribbon Bar Toolbar When "Type 2" Dropdown is opened or expanded and we click on any "Type 1" Dropdown then "Type 1" dropdown is still remain open or expand.

When a Telerik RadTextBox contains a line break, a postback is triggered any time focus is lost on the textbox, even if the text hasn’t been changed. If a normal ASP Textbox is used instead of a Telerik one, no postback occurs if the text hasn’t been changed, even if the text contains a line break. We need the Telerik RadTextBox to behave like the ASP Textbox.

 

See the attached file for a simple example of this behavior, and let me know if you have any other questions about it.

ADMIN: Attached is also a workaround.

Subresource Integrity is a fairly new security scheme for protecting against malicious script obtained from third-party source (CDNs). It requires that the script tag include a hash of the script content so the browser can verify that it has not been altered.

Telerik controls generate a bunch of script tags for cloudfront.net. It would be swell if the script tags would include the extra attributes necessary to implement subresource integrity. Is this in the roadmap? 

Mozilla provides a security analysis tool which highlights this issue. Look at the results for telerik.com here -> https://observatory.mozilla.org/analyze/www.telerik.com. 

More info available on 
https://infosec.mozilla.org/guidelines/web_security#subresource-integrity
https://www.w3.org/TR/SRI/

When EnableComments is set to true, the content from the clipboard is pasted twice in an empty editor.

RadEditor Configuration:

<telerik:RadEditor runat="server"
    EnableComments="true">
    <Tools>
        <telerik:EditorToolGroup>
            <telerik:EditorTool Name="Bold" />
            <telerik:EditorTool Name="Italic" />
            <telerik:EditorTool Name="Underline" />
            <telerik:EditorSeparator />
            <telerik:EditorTool Name="Undo" />
            <telerik:EditorTool Name="Redo" />
            <telerik:EditorTool Name="Cut" />
            <telerik:EditorTool Name="Copy" />
            <telerik:EditorTool Name="Paste" />
            <telerik:EditorTool Name="PastePlainText" Text="Paste Plain Text" />
            <telerik:EditorTool Name="FindAndReplace" Text="Find and Replace" />
            <telerik:EditorSeparator />
            <telerik:EditorTool Name="Indent" />
            <telerik:EditorTool Name="Outdent" />
            <telerik:EditorTool Name="InsertOrderedList" Text="Numbered List" />
            <telerik:EditorTool Name="InsertUnorderedList" Text="Bulleted List" />
            <telerik:EditorTool Name="LinkManager" />
            <telerik:EditorTool Name="Unlink" />
            <telerik:EditorSeparator />
            <telerik:EditorTool Name="AjaxSpellCheck" Text="Spell Check" />
            <telerik:EditorTool Name="InsertSymbol" Text="Insert Symbol" />
        </telerik:EditorToolGroup>
        <telerik:EditorToolGroup>
            <telerik:EditorTool Name="AcceptTrackChange" Text="Accept Change" />
            <telerik:EditorTool Name="RejectTrackChange" Text="Reject Change" />
            <telerik:EditorTool Name="AcceptAllTrackChanges" Text="Accept All Changes" />
            <telerik:EditorTool Name="RejectAllTrackChanges" Text="Reject All Changes" />
            <telerik:EditorTool Name="EnableTrackChangesOverride" Text="Track Changes" />
            <telerik:EditorTool Name="AddComment" Text="Add Comment" />
            <telerik:EditorTool Name="RemoveComment" Text="Remove Comment" />
            <telerik:EditorTool Name="RemoveAllComments" Text="Remove All Comments" />
            <telerik:EditorTool Name="ImageManager" Text="Insert Image" />
        </telerik:EditorToolGroup>
    </Tools>
</telerik:RadEditor>

Potential workaround:
<script type="text/javascript">
    function OnClientPasteHtml(sender, args) {
        var commandName = args.get_commandName();
        var value = args.get_value();
 
        if (commandName == "Paste" && Telerik.Web.Browser.ie) {
            args.set_value(value);
            args.set_cancel(true);
        }
    }
</script>
<telerik:RadEditor runat="server" Height="300px" StripFormattingOptions="Span,Font,Css" EnableTrackChanges="true" OnClientPasteHtml="OnClientPasteHtml"
    ContentFilters="FixEnclosingP,RemoveScripts,FixUlBoldItalic,IECleanAnchors,MozEmStrong,ConvertFontToSpan,ConvertToXhtml,IndentHTMLContent,EncodeScripts,OptimizeSpans,ConvertTags,StripCssExpressions,RemoveExtraBreaks"
    EnableComments="true" NewLineMode="P" EditModes="Design,Html">
</telerik:RadEditor>

Likely to happen when an element is empty, not just the editor, if you can get the cusros in an empty <p>, and press backspace you can get the same behavior, it can happen as you work on some content

Steps to reproduce:

1. Go to the Editor demo page http://demos.telerik.com/aspnet-ajax/editor/examples/overview/defaultcs.aspx in Chrome
2. CTRL+A on the editor and hit delete
3. Hit Delete or Backspace again

Result: Uncaught TypeError  Cannot read property 'nodeType' of undefined Appears in the console