private static void UpdateTypeArgument(ModelItem modelItem, Type value)
{
if (value != null)
{
Type oldModelItemType = modelItem.ItemType;
Type newModelItemType = oldModelItemType.GetGenericTypeDefinition().MakeGenericType(value);
ModelItem newModelItem = ModelFactory.CreateItem(modelItem.GetEditingContext(), Activator.CreateInstance(newModelItemType));
MorphHelper.MorphObject(modelItem, newModelItem);
MorphHelper.MorphProperties(modelItem, newModelItem);
if (oldModelItemType.IsSubclassOf(typeof(Activity)) && newModelItemType.IsSubclassOf(typeof(Activity)))
{
if (string.Equals((string)modelItem.Properties["DisplayName"].ComputedValue, GetActivityDefaultName(oldModelItemType), StringComparison.Ordinal))
{
newModelItem.Properties["DisplayName"].SetValue(GetActivityDefaultName(newModelItemType));
}
}
DesignerView designerView = modelItem.GetEditingContext().Services.GetService <DesignerView>();
if (designerView != null)
{
Dispatcher.CurrentDispatcher.BeginInvoke(DispatcherPriority.Render, (Action)(() =>
{
if (designerView.RootDesigner != null && ((WorkflowViewElement)designerView.RootDesigner).ModelItem == modelItem)
{
designerView.MakeRootDesigner(newModelItem);
}
Selection.SelectOnly(modelItem.GetEditingContext(), newModelItem);
}));
}
}
}
private static void UpdateTypeArgument(ModelItem modelItem, Int32 argumentIndex, Type newGenericType)
{
Type itemType = modelItem.ItemType;
Type[] genericTypes = itemType.GetGenericArguments();
// Replace the type being changed
genericTypes[argumentIndex] = newGenericType;
Type newType = itemType.GetGenericTypeDefinition().MakeGenericType(genericTypes);
EditingContext editingContext = modelItem.GetEditingContext();
Object instanceOfNewType = Activator.CreateInstance(newType);
ModelItem newModelItem = ModelFactory.CreateItem(editingContext, instanceOfNewType);
using (ModelEditingScope editingScope = newModelItem.BeginEdit("Change type argument"))
{
MorphHelper.MorphObject(modelItem, newModelItem);
MorphHelper.MorphProperties(modelItem, newModelItem);
if (itemType.IsSubclassOf(typeof(Activity)) && newType.IsSubclassOf(typeof(Activity)))
{
if (DisplayNameRequiresUpdate(modelItem))
{
// Update to the new display name
String newDisplayName = GetActivityDefaultName(newType);
newModelItem.Properties[DisplayName].SetValue(newDisplayName);
}
}
DesignerUpdater.UpdateModelItem(modelItem, newModelItem);
editingScope.Complete();
}
}
private static void UpdateTypeArgument(ModelItem modelItem, Type argType, int argIndex)
{
if (modelItem == null)
{
return;
}
var argTypes = modelItem.ItemType.GetGenericArguments();
argTypes[argIndex] = argType;
var editingContext = modelItem.GetEditingContext();
var itemType = modelItem.ItemType;
var type = itemType.GetGenericTypeDefinition().MakeGenericType(argTypes);
var newModelItem = ModelFactory.CreateItem(editingContext, Activator.CreateInstance(type));
MorphHelper.MorphObject(modelItem, newModelItem);
MorphHelper.MorphProperties(modelItem, newModelItem);
if (itemType.IsSubclassOf(typeof(Activity)) &&
type.IsSubclassOf(typeof(Activity)) &&
string.Equals((string)modelItem.Properties[DisplayName].ComputedValue, GetActivityDefaultName(itemType), StringComparison.Ordinal))
{
newModelItem.Properties[DisplayName].SetValue(GetActivityDefaultName(type));
}
var service = editingContext.Services.GetService <DesignerView>();
if (service == null)
{
return;
}
Dispatcher.CurrentDispatcher.BeginInvoke(DispatcherPriority.Render, new Action(() =>
{
if (service.RootDesigner != null && ((WorkflowViewElement)service.RootDesigner).ModelItem == modelItem)
{
service.MakeRootDesigner(newModelItem);
}
Selection.SelectOnly(editingContext, newModelItem);
}));
}