public void HandleBehaviorDragDropEvents()
{
DragDropBehavior listBoxBehavior = behaviorManager1.GetBehavior <DragDropBehavior>(this.listBoxControl1);
listBoxBehavior.DragOver += ListBoxBehavior_DragOver;
listBoxBehavior.DragDrop += ListBoxBehavior_DragDrop;
}
public void HandleBehaviorDragDropEvents()
{
DragDropBehavior gridControlBehavior = behaviorManager1.GetBehavior <DragDropBehavior>(this.gridView1);
gridControlBehavior.DragDrop += Behavior_DragDrop;
gridControlBehavior.DragOver += Behavior_DragOver;
}
/// <summary>
/// Deattachs the behavior from the element.
/// </summary>
/// <param name="element">The element to deattach the behavior.</param>
private static void DestroyBehavior(UIElement element)
{
DragDropBehavior behavior = element.GetValue(DragDropBehaviorProperty) as DragDropBehavior;
if (behavior != null)
{
element.SetValue(DragDropBehaviorProperty, null);
behavior.Dispose();
}
}
/// <summary>
/// Gets or creates a <see cref="DragDropBehavior"/> for the element.
/// </summary>
/// <param name="element">The element to attach the behavior.</param>
/// <returns>The attached behavior.</returns>
private static DragDropBehavior GetOrCreateBehavior(UIElement element)
{
DragDropBehavior behavior = element.GetValue(DragDropBehaviorProperty) as DragDropBehavior;
if (behavior == null)
{
behavior = new DragDropBehavior(element);
element.SetValue(DragDropBehaviorProperty, behavior);
}
return(behavior);
}
private Action <DragDropBehavior> MyBehaviorSettings()
{
return(behavior =>
{
behavior.Properties.AllowDrop = true;
behavior.Properties.InsertIndicatorVisible = true;
behavior.Properties.PreviewVisible = true;
behavior.DragOver += Behavior_DragOver;
behavior.DragDrop += Behavior_DragDrop;
behavior.BeginDragDrop += Behavior_BeginDragDrop;
behaviorField = behavior; // so we can release the events later
});
}
public DocumentNavigationPane()
{
myNodeFactory = new NavigationNodeFactory(OnSelectionChanged);
Root = new NavigationNode(myNodeFactory);
CreateChildCommand = new DelegateCommand <NavigationNode>(OnCreateChild);
DeleteCommand = new DelegateCommand <NavigationNode>(n => ((NavigationNode)n.Parent).Children.Remove(n));
var dragDropBehavior = new DragDropBehavior(Root);
DropCommand = new DelegateCommand <NodeDropRequest>(dragDropBehavior.ApplyDrop);
InitializeComponent();
}
//private void Drag(DragCommandParameter parameter)
//{
// if (Picture != null)
// {
// IDataObject dataObject = DragDropBehavior.CreateDataObject(Picture);
// DragDropEffects effect = DragDrop.DoDragDrop(parameter.DragSource, dataObject, DragDropEffects.Move);
// if ((effect & DragDropEffects.Move) != 0)
// Picture = null;
// }
//}
private bool CanDrop(DropCommandParameter parameter)
{
// Extract data.
var draggedPicture = DragDropBehavior.GetData(parameter.DragEventArgs.Data) as PictureViewModel;
// To enable Drop the preview area needs to be empty and the dragged data needs to be a
// picture.
if (Picture == null && draggedPicture != null)
{
parameter.Data = draggedPicture;
parameter.DragEventArgs.Effects = DragDropEffects.Move;
return(true);
}
return(false);
}
public ClusterEditorModel()
{
AddButtonCaption = "Add ...";
AddNodesToClusterCommand = new DelegateCommand(OnAddNodesToCluster, () => SelectedCluster != null);
MouseDownCommand = new DelegateCommand <MouseButtonEventArgs>(OnMouseDown);
Root = new ClusterTreeNode(null);
Root.IsDragAllowed = false;
Root.IsDropAllowed = false;
AddClusterCommand = new DelegateCommand <ClusterTreeNode>(OnAddCluster, n => n == Root);
DeleteClusterCommand = new DelegateCommand <ClusterTreeNode>(OnDeleteCluster, n => n.Parent == Root);
myDragDropBehavior = new DragDropBehavior(Root);
DropCommand = new DelegateCommand <NodeDropRequest>(myDragDropBehavior.ApplyDrop);
}
public TreeEditorViewModel()
{
Root = new Node();
Root.IsDragAllowed = false;
Root.IsDropAllowed = false;
BuildTree();
// as an example we only want to allow to add or delete processes
CreateChildCommand = new DelegateCommand <Node>(OnCreateChild, n => n == Root);
DeleteCommand = new DelegateCommand <Node>(n => ((Node)n.Parent).Children.Remove(n), n => n.Parent == Root);
var dragDropBehavior = new DragDropBehavior(Root);
DropCommand = new DelegateCommand <NodeDropRequest>(dragDropBehavior.ApplyDrop);
RefreshCommand = new DelegateCommand(BuildTree);
}
