Disable Docking option

[Roy]

Hi,
How should i disable the docking option in radDock control?

example image attached.

[George]

Hello Roy,

Thank you for contacting us.

You can disable the docking option in RadDock by canceling the corresponding transaction. You can subscribe to the TransactionCommitting event of the RadDock:

this.radDock.TransactionCommitting += radDock_TransactionCommitting;

Then in the event handler you can cancel the DragDrop and Float transaction types:

void radDock_TransactionCommitting(object sender, RadDockTransactionCancelEventArgs e)
{
    if (e.Transaction.TransactionType ==  DockTransactionType.DragDrop || e.Transaction.TransactionType ==  DockTransactionType.Float)
    {
        e.Cancel = true;
    }
}

I hope this information is helpful.
 
Regards,
George
Telerik

[Roy]

Thanks,
its working great,  but i was wondering if there any option to disable even the arrows of dock when you're trying to drag the tab.
( exactly as in image )

Best regards,
Roy

[George]

Hi Roy,

Thank you for writing back.

In this case you would have to create a custom DragDropService. Below you can find the implementation of the class:

public class MyDragDropService : DragDropService
{
    public bool ShouldShowGuides { get; set; }

    protected override void Drag(Point mousePos)
    {
        if (this.ShouldShowGuides)
        {
            base.Drag(mousePos);
        }
        else
        {
            this.DragWithoutDockHint(mousePos);
            this.GetMethod("HideGuides").Invoke(this, null);
        }
    }

    protected virtual void DragWithoutDockHint(Point mousePos)
    {
        if (this.DragDropBehavior == DragDropBehavior.Auto && NativeMethods.GetCapture() == null)
        {
            this.Stop(false);
            return;
        }

        FieldInfo currMouse = this.GetField("currMouse");
        currMouse.SetValue(this, mousePos);
        FieldInfo prevMouse = this.GetField("prevMouse");

        if (this.DragDropBehavior == DragDropBehavior.Auto && ((Point)currMouse.GetValue(this)) == ((Point)prevMouse.GetValue(this)))
        {
            return;
        }

        prevMouse.SetValue(this, currMouse.GetValue(this));
        FieldInfo draggedWindow = this.GetField("draggedWindow");

        if (draggedWindow.GetValue(this) != null)
        {
            ((FloatingWindow)draggedWindow.GetValue(this)).BringToFront();
        }

        FieldInfo dropAnchor = this.GetField("dropAnchor");
        SplitPanel dropTarget = this.GetDropTarget();
        dropAnchor.SetValue(this, dropTarget);

        FieldInfo dragContext = this.GetField("dragContext");

        if (((DragDropContext)dragContext.GetValue(this)) == DragDropContext.DocumentWindow)
        {
            this.GetMethod("UpdateDocumentCursor").Invoke(this, null);
        }

        FieldInfo guideHitTest = this.GetField("guideHitTest");

        //we are not above a docking guide, move the dragged object
        if (((DockingGuideHitTest)guideHitTest.GetValue(this)) == DockingGuideHitTest.Empty)
        {
            this.GetMethod("MoveDraggedObject").Invoke(this, null);
        }

        //raise the Dragging event and check whether we may continue the operation.
        CancelEventArgs args = new CancelEventArgs();
        this.OnDragging(args);
        if (args.Cancel)
        {
            this.Stop(false);
        }
    }

    private FieldInfo GetField(string field)
    {
        return this.GetType().BaseType.GetField(field, System.Reflection.BindingFlags.NonPublic | System.Reflection.BindingFlags.Instance);
    }

    private MethodInfo GetMethod(string method)
    {
        return this.GetType().BaseType.GetMethod(method, BindingFlags.Instance | BindingFlags.NonPublic);
    }
}

The service can be registered as follows:

this.radDock.RegisterService(1, new MyDragDropService());

Let me know if I can be of further assistance.

Regards,
George
Telerik

[Roy]

Thank you!   its works like a magic.

[George]

Hi Roy,

I am writing you again to let you know that we consider this as a reasonable feature request. That is why I created a new item in our Public Issue Tracking System. You can find it at http://www.telerik.com/support/pits.aspx#/public/winforms/15890.

I have also updated your Telerik Points for the contribution.

Regards,
George
Telerik