/// <summary>
/// Ensures that the user truly wants to remove a reference to a domain model.
/// </summary>
/// <returns>True to remove; False otherwise.</returns>
protected override bool EnsureClosing()
{
if (!IsReferencedModelSet)
{
return(true);
}
global::Tum.VModellXT.Musterbibliothek refModel = this.Elements[0] as global::Tum.VModellXT.Musterbibliothek;
// we need to gather references that will be deleted if the referenced model is removed
// 1. gather excluded domain models
System.Collections.Generic.List <DslModeling::ModelElement> excludedDomainModels = new System.Collections.Generic.List <DslModeling::ModelElement>();
foreach (DslModeling::ModelElement domainModel in this.Store.ElementDirectory.FindElements(global::Tum.VModellXT.Musterbibliothek.DomainClassId))
{
if (domainModel == refModel)
{
continue;
}
DslModeling::ModelElement parent = domainModel;
while (parent != null)
{
parent = VModellXTElementParentProvider.Instance.GetParentModelElement(parent) as DslModeling::ModelElement;
if (parent == refModel)
{
excludedDomainModels.Add(parent);
break;
}
}
}
// 2. add elements of those excluded domain models to get existing dependencies on them to
// the actual domain models
System.Collections.Generic.List <DslModeling::ModelElement> elements = VModellXTElementChildrenProvider.Instance.GetChildren(refModel.VModell, false);
// 3. ensure user wants to continue
using (DslEditorViewModelDeletion::DeletionViewModel vm = new DslEditorViewModelDeletion::DeletionViewModel(this.ViewModelStore))
{
vm.Set(elements, new RetrivalOptions(excludedDomainModels));
vm.Description = "Attention: This deletion can not be undone! \r\n \r\n" + vm.Description;
bool?result = this.GlobalServiceProvider.Resolve <DslEditorViewModelServices::IUIVisualizerService>().ShowDialog("DeleteElementsPopup", vm);
if (!result == true)
{
return(false);
}
}
System.GC.Collect();
// 4. delete referenced model and flush undo/redo stacks
using (new Tum.PDE.ToolFramework.Modeling.Visualization.ViewModel.UI.WaitCursor())
{
using (DslModeling::Transaction transaction = this.Store.TransactionManager.BeginTransaction("Delete referenced model"))
{
refModel.VModell.Delete();
transaction.Commit();
}
}
this.ModelData.FlushUndoRedoStacks();
return(true);
}
/// <summary>
/// Ensures that the user truly wants to remove a reference to a domain model.
/// </summary>
/// <returns>True to remove; False otherwise.</returns>
protected override bool EnsureClosing()
{
if (!IsReferencedModelSet)
return true;
global::Tum.VModellXT.Musterbibliothek refModel = this.Elements[0] as global::Tum.VModellXT.Musterbibliothek;
// we need to gather references that will be deleted if the referenced model is removed
// 1. gather excluded domain models
System.Collections.Generic.List<DslModeling::ModelElement> excludedDomainModels = new System.Collections.Generic.List<DslModeling::ModelElement>();
foreach(DslModeling::ModelElement domainModel in this.Store.ElementDirectory.FindElements(global::Tum.VModellXT.Musterbibliothek.DomainClassId))
{
if( domainModel == refModel )
continue;
DslModeling::ModelElement parent = domainModel;
while(parent != null )
{
parent = VModellXTElementParentProvider.Instance.GetParentModelElement(parent) as DslModeling::ModelElement;
if( parent == refModel )
{
excludedDomainModels.Add(parent);
break;
}
}
}
// 2. add elements of those excluded domain models to get existing dependencies on them to
// the actual domain models
System.Collections.Generic.List<DslModeling::ModelElement> elements = VModellXTElementChildrenProvider.Instance.GetChildren(refModel.VModell, false);
// 3. ensure user wants to continue
using( DslEditorViewModelDeletion::DeletionViewModel vm = new DslEditorViewModelDeletion::DeletionViewModel(this.ViewModelStore) )
{
vm.Set(elements, new RetrivalOptions(excludedDomainModels));
vm.Description = "Attention: This deletion can not be undone! \r\n \r\n" + vm.Description;
bool? result = this.GlobalServiceProvider.Resolve<DslEditorViewModelServices::IUIVisualizerService>().ShowDialog("DeleteElementsPopup", vm);
if (!result == true)
return false;
}
System.GC.Collect();
// 4. delete referenced model and flush undo/redo stacks
using (new Tum.PDE.ToolFramework.Modeling.Visualization.ViewModel.UI.WaitCursor())
{
using (DslModeling::Transaction transaction = this.Store.TransactionManager.BeginTransaction("Delete referenced model"))
{
refModel.VModell.Delete();
transaction.Commit();
}
}
this.ModelData.FlushUndoRedoStacks();
return true;
}
