RadMenu on BlackBerry

[Alex]

Are there specific settings I need to ensure that my RadMenu can work on a BlackBerry or IPhone browser? My menu has sub items so the user needs to be able to access those. Right now, the menu displays but I cannot access the sub menu items.

[Kamen Bundev]

Hi Alex,

In next service pack, we will be issuing a special help section for how to use RadControls for ASP.NET AJAX in mobile browsers, here is an excerpt from it regarding what to know when targeting them:

Most smartphone mobile browsers currently on the market are fairly advanced and RadControls for ASP.NET AJAX work on them with little or no modifications. However there are certain specifics in these browsers that one needs to know in order to have RadControls working to their full extent:

• Hover events are fired on touch/click since there is no actual hover in touchscreen devices. This also means that elements shown on hover will be shown on click. For instance to see the submenus in RadMenu, don’t set NavigateUrls on expandable items;
• Double click is usually reserved for zoom and is not fired as event;
• Some browsers show a context menu on touch & hold but a contextmenu event is either not fired and/or the browser menu can’t be cancelled. Touch & hold event can be implemented manually, but more on this later;
• Scrolling in mobile browsers is usually handled with drag gestures, which means that normal drag&drop is not working;
• Clicking on editable input elements will bring up the virtual keyboard whenever necessary, so the visible space is shrinked;
• Scrolling containers in Mobile Safari are rendered with overflow: hidden and can only be scrolled with two finger drag gesture. We developed a special TouchScrollExtender client control to handle this, check the appropriate topic in this section;
• ContentEditable is not supported in Mobile Safari up to iOS 4.0, which means that RadEditor will be rendered as a simple textarea.
• iOS Mobile Safari doesn’t support input elements with type=”file”, so it will be rendered as disabled (hence RadAsyncUpload/RadUpload won’t work).

Best wishes,
Kamen Bundev
the Telerik team

[Alex]

Double clicking the top menu is not working for me. Also, I do not have a navigateURL on that parent menu item.

[Kamen Bundev]

Hi Alex,

It seems hover events are not fired in the BlackBerry browser, or at least not when needed. You can set RadMenu's ClickToOpen="true" to use directly click to open the sub menu items, I've tested it and it works. Additionally I've done some optimizations to the way RadMenu shows its submenus to work around some glitches in the BlackBerry OS 5.x browsers. I also introduced some BlackBerry detection variables - $telerik.isBlackBerry4, $telerik.isBlackBerry5, $telerik.isBlackBerry6 and $telerik.isBlackBerry which combines the previous three. You can get these fixes with the next internal build.

Regards,
Kamen Bundev
the Telerik team

[Jon Wood]

Are the optimizations and blackberry variables available now in the current radmenu release?  

[Helen]

Hello Jon,

Yes, they are available in the latest Q1 2011 release.

Greetings,
Helen
the Telerik team