How to disable contextmenu except in the grid row?

[Tom]

I tried to disable unnecessary context menu when I set a grid with ContextMenus. By default, if you click the blank part of the grid, it disables the Delete menu.

However, after adding customized menu like Download, it shows in the context menu even there is no selected item (i.e., How can I download it?). So I want to disable the unnecessary menu or make it invisible except in the grid row context menu.

[Tom]

I solved the problem partially using the fllowing codes from http://stackoverflow.com/questions/1173202/how-to-disable-contextmenu-except-in-the-grid-of-telerik-fileexplorer

<script type="text/javascript">
function OnClientLoad(explorer)
{
        explorer.get_gridContextMenu().add_showing(disableItem);
}
function disableItem(sender, args)
{
        var target = args.get_targetElement();
        if (target && target.className == "rgDataDiv")
        {
                var dlItem = sender.findItemByValue("download");
                dlItem.set_enabled(false);
        }
}
</script>
<telerik:RadFileExplorer runat="server" ID="RadFileExplorer1" OnClientLoad="OnClientLoad"></telerik:RadFileExplorer>

However, I still have an enabled menu in the header context menu. What is the working className or soultion for Header Context Menu?

[Lini]

Hi,

The solution you have is almost complete. You just need to handle more specific cases in the disableItem() function.

function disableItem(sender, args)
{
    var target = args.get_targetElement();
    var isOverRow = false;
    if (target)
    {
        if (Sys.UI.DomElement.containsCssClass(target, "rfeFileExtension") ||
            (target.tagName.toLowerCase() == "td" && !target.className))
            isOverRow = true;
    }

    if (!isOverRow)
    {
        //disable new item
        var dlItem = sender.findItemByValue("download");
        dlItem.set_enabled(false);
    }
}

Here is the updated code. It checks only if the click was over a grid row. Everywhere else it will disable the custom menu item.

Kind regards,
Lini
the Telerik team

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