Scrolling during drag and drop

[Stuart Hemming]

I've a TreeView in a RadSplitterPane.

The TreeView is set to allow drag and drop.

ATM, I can only drag to a node I can see at the beginning of the drag and drop operation as I seem unable to get either to TreeView or the SplitterPane to scroll.

Is there, actually, a way to do this?

-- 
Stuart

[Dimitar Terziev]

Hi Stuart,

As you have noticed the container wrapping the RadTreeView is not scrolling, which is expected behavior since the user could scroll using the mouse while dragging.

The desired functionality could be achieve using custom implementation. You should monitor the cursor position on the page and if cursor is near the bottom or top of the container, you should scroll it manually.

Greetings,
Dimitar Terziev
the Telerik team

[Scott]

I'm having the exact same problem.  I have a RadTreeView in a RadSplitter Pane.  Both are within an iFrame.  I also have a manual scroll using the scrollBy method in Window.  When the dragged node reaches the bottom, instead of scrolling the pane, it scrolls the entire frame, not the TreeView.  Here's the Javascript:

function onNodeDragging(sender, args)
{
    var target = args.get_htmlElement();

    if(!target) return;

    if (target.tagName == "INPUT")
    {
        target.style.cursor = "hand";
    }
    var container = sender.get_element();
    var divYCoord = $telerik.getLocation(container).y;
    var currentYCoord = args.get_domEvent().clientY;
    var textbox = $get("textbox");

    if (currentYCoord > (document.body.clientHeight - 20))
        window.scrollBy(0, 20);
    if(currentYCoord < 620)
        window.scrollBy(0, -20);
    window.status = "RadPane1.clientHeight:" + radPane1.clientHeight + ":document.body.clientHeight:" + document.body.clientHeight + ":currentYCoord:" + currentYCoord + ":document.body.scrollTop:" + document.body.scrollTop + ":iTop:" + (currentYCoord - document.body.scrollTop) + ":" + args.get_domEvent().screenY + ":" + divYCoord;
}

Thanks,

Scott

[Dimitar Terziev]

Hi Scott,

Since you have opened a support ticket regarding this issue, lets keep the discussing there until we find a solution.

All the best,
Dimitar Terziev
the Telerik team