internal static EditingScope TryCreateImmediateEditingScope(ModelTreeManager manager, string editingScopeDescription)
{
if (manager.CanCreateImmediateEditingScope())
{
return manager.CreateEditingScope(editingScopeDescription, true);
}
return null;
}
internal static EditingScope TryCreateImmediateEditingScope(ModelTreeManager manager, string editingScopeDescription)
{
if (manager.CanCreateImmediateEditingScope())
{
return(manager.CreateEditingScope(editingScopeDescription, true));
}
return(null);
}
internal static ModelEditingScope ModelItemBeginEdit(ModelTreeManager modelTreeManager, string description, bool shouldApplyChangesImmediately)
{
if (shouldApplyChangesImmediately && modelTreeManager.Context.Services.GetService<UndoEngine>().IsBookmarkInPlace)
{
throw FxTrace.Exception.AsError(new InvalidOperationException(SR.InvalidNestedModelItemBeginEditExceptionMessage));
}
EditingScope editingScope = modelTreeManager.CreateEditingScope(description, shouldApplyChangesImmediately);
if (shouldApplyChangesImmediately && editingScope == null)
{
throw FxTrace.Exception.AsError(new InvalidOperationException(SR.InvalidNestedModelItemBeginEditExceptionMessage));
}
return editingScope;
}
internal static ModelEditingScope ModelItemBeginEdit(ModelTreeManager modelTreeManager, string description, bool shouldApplyChangesImmediately)
{
if (shouldApplyChangesImmediately && modelTreeManager.Context.Services.GetService <UndoEngine>().IsBookmarkInPlace)
{
throw FxTrace.Exception.AsError(new InvalidOperationException(SR.InvalidNestedModelItemBeginEditExceptionMessage));
}
EditingScope editingScope = modelTreeManager.CreateEditingScope(description, shouldApplyChangesImmediately);
if (shouldApplyChangesImmediately && editingScope == null)
{
throw FxTrace.Exception.AsError(new InvalidOperationException(SR.InvalidNestedModelItemBeginEditExceptionMessage));
}
return(editingScope);
}
internal static void TryCreateImmediateEditingScopeAndExecute(EditingContext context, string editingScopeDescription, Action <EditingScope> modelEditingWork)
{
Fx.Assert(context != null, "context should not be null.");
Fx.Assert(modelEditingWork != null, "modelEditingWork should not be null.");
ModelTreeManager manager = context.Services.GetRequiredService <ModelTreeManager>();
if (manager.CanCreateImmediateEditingScope())
{
using (EditingScope editingScope = manager.CreateEditingScope(editingScopeDescription, true))
{
modelEditingWork(editingScope);
}
}
else
{
modelEditingWork(null);
}
}