private void control_DragDrop(object sender, DragEventArgs e)
{
SetMousePosition(e);
IInstancingContext instancingContext = AdaptedControl.ContextAs <IInstancingContext>();
if (instancingContext != null &&
instancingContext.CanInsert(e.Data))
{
try
{
m_isDropping = true;
string name = "Drag and Drop".Localize();
ITransactionContext transactionContext = AdaptedControl.ContextAs <ITransactionContext>();
transactionContext.DoTransaction(
delegate
{
instancingContext.Insert(e.Data);
if (m_statusService != null)
{
m_statusService.ShowStatus(name);
}
}, name);
AdaptedControl.Focus();
}
finally
{
m_isDropping = false;
}
}
}
/// <summary>
/// Returns whether the active context can paste from the clipboard</summary>
/// <returns>True iff the active context can paste from the clipboard</returns>
public bool CanPaste()
{
IInstancingContext instancingContext = m_contextRegistry.GetActiveContext <IInstancingContext>();
return
(instancingContext != null &&
instancingContext.CanInsert(Clipboard));
}
private void control_DragOver(object sender, DragEventArgs e)
{
SetMousePosition(e);
e.Effect = DragDropEffects.None;
IInstancingContext instancingContext = AdaptedControl.ContextAs <IInstancingContext>();
if (instancingContext != null &&
instancingContext.CanInsert(e.Data))
{
OnDragOver(e);
}
}
/// <summary>
/// Paste's the clipboard into the active context</summary>
public void Paste()
{
IInstancingContext instancingContext = m_contextRegistry.GetActiveContext <IInstancingContext>();
if (instancingContext != null &&
instancingContext.CanInsert(Clipboard))
{
ITransactionContext transactionContext = instancingContext.As <ITransactionContext>();
transactionContext.DoTransaction(
delegate
{
instancingContext.Insert(Clipboard);
}, CommandInfo.EditPaste.MenuText);
OnPasted(EventArgs.Empty);
}
}
private void listView_DragDrop(object sender, DragEventArgs e)
{
IInstancingContext context = m_eventSequenceContext;
if (context.CanInsert(e.Data))
{
ITransactionContext transactionContext = context as ITransactionContext;
transactionContext.DoTransaction(delegate
{
context.Insert(e.Data);
}, "Drag and Drop".Localize());
if (m_statusService != null)
{
m_statusService.ShowStatus("Drag and Drop".Localize());
}
}
}
/// <summary>
/// Indicates if the specified child can be inserted into the specified parent object</summary>
/// <param name="context">Must implement IHierarchicalInsertionContext and/or
/// IInstancingContext to succeed</param>
/// <param name="parent">Optional. Parent object we want to insert into. Can be null if the
/// context supports it.</param>
/// <param name="child">Child object to be inserted into the specified parent</param>
/// <returns>True iff the child can be inserted into the parent (or the context supports
/// parent-less insertion)</returns>
/// <remarks>The context must implement IHierarchicalInsertionContext and/or IInstancingContext
/// to allow insertion. If the context implements both, IHierarchicalInsertionContext is preferred and
/// any insertion logic in the IInstancingContext implementation is ignored!</remarks>
public static bool CanInsert(object context, object parent, object child)
{
IHierarchicalInsertionContext hierarchicalInsertionContext = context.As <IHierarchicalInsertionContext>();
if (hierarchicalInsertionContext != null)
{
return(hierarchicalInsertionContext.CanInsert(parent, child));
}
else
{
IInstancingContext instancingContext = context.As <IInstancingContext>();
if (instancingContext != null)
{
return(instancingContext.CanInsert(child));
}
}
return(false);
}
private void resourcesListView_DragDrop(object sender, DragEventArgs e)
{
if (m_event != null)
{
IInstancingContext context = m_event.Cast <IInstancingContext>();
if (context.CanInsert(e.Data))
{
ITransactionContext transactionContext = context as ITransactionContext;
TransactionContexts.DoTransaction(transactionContext,
delegate
{
context.Insert(e.Data);
},
Localizer.Localize("Drag and Drop"));
if (m_statusService != null)
{
m_statusService.ShowStatus(Localizer.Localize("Drag and Drop"));
}
}
}
}
