private static void ConvertNamespaces(object root, EditingContext context)
{
VisualBasicSettings settings = VisualBasic.GetSettings(root);
IList <AssemblyReference> references;
IList <string> importedNamespaces = NamespaceHelper.GetTextExpressionNamespaces(root, out references);
FrameworkName targetFramework = WorkflowDesigner.GetTargetFramework(context);
if (targetFramework.IsLessThan45())
{
if (settings == null)
{
if ((importedNamespaces != null) && (importedNamespaces.Count > 0))
{
NamespaceHelper.ConvertToVBSettings(
importedNamespaces,
references,
context,
out settings);
}
else
{
settings = new VisualBasicSettings();
}
NamespaceHelper.SetVisualBasicSettings(root, settings);
NamespaceHelper.SetTextExpressionNamespaces(root, null, null);
}
IDebuggableWorkflowTree debuggableWorkflowTree = root as IDebuggableWorkflowTree;
if (debuggableWorkflowTree != null)
{
Activity rootActivity = debuggableWorkflowTree.GetWorkflowRoot();
if (rootActivity != null)
{
NamespaceHelper.SetVisualBasicSettings(rootActivity, settings);
NamespaceHelper.SetTextExpressionNamespaces(rootActivity, null, null);
}
}
}
else
{
if ((importedNamespaces == null) || (importedNamespaces.Count == 0))
{
if (settings != null)
{
NamespaceHelper.ConvertToTextExpressionImports(settings, out importedNamespaces, out references);
NamespaceHelper.SetTextExpressionNamespaces(root, importedNamespaces, references);
NamespaceHelper.SetVisualBasicSettings(root, null);
}
else
{
NamespaceHelper.SetTextExpressionNamespaces(root, new Collection <string>(), new Collection <AssemblyReference>());
}
}
}
}
static void OnRootPropertyChanged(object sender, PropertyChangedEventArgs e)
{
ModelItem rootModel = sender as ModelItem;
Fx.Assert(rootModel != null, "sender item could not be null");
ModelProperty changedProperty = rootModel.Properties[e.PropertyName];
if (changedProperty == null)
{
return;
}
object changedPropertyValue = changedProperty.ComputedValue;
if (changedPropertyValue == null)
{
return;
}
Fx.Assert(rootModel.GetCurrentValue().GetType() == WorkflowServiceType, "This handler should only be attached when the root is WorkflowService");
IDebuggableWorkflowTree root = rootModel.GetCurrentValue() as IDebuggableWorkflowTree;
Activity rootActivity = root.GetWorkflowRoot();
if (rootActivity == changedPropertyValue)
{
if (WorkflowDesigner.GetTargetFramework(rootModel.GetEditingContext()).IsLessThan45())
{
VisualBasicSettings settings = VisualBasic.GetSettings(root);
NamespaceHelper.SetVisualBasicSettings(changedPropertyValue, settings);
}
else
{
IList <AssemblyReference> referencedAssemblies;
IList <string> namespaces = NamespaceHelper.GetTextExpressionNamespaces(root, out referencedAssemblies);
NamespaceHelper.SetTextExpressionNamespaces(rootActivity, namespaces, referencedAssemblies);
}
}
}
public override bool TryMorphExpression(ActivityWithResult expression, bool isLocationExpression, Type newType,
EditingContext context, out ActivityWithResult newExpression)
{
Fx.Assert(expression != null, "Original expression shouldn't be null in morph helper");
Fx.Assert(context != null, "EditingContext shouldn't be null in morph helper");
newExpression = null;
if (expression.ResultType == newType &&
(ExpressionHelper.IsGenericLocationExpressionType(expression) == isLocationExpression))
{
newExpression = expression;
return(true);
}
if (context != null)
{
string expressionEditor = ExpressionHelper.GetRootEditorSetting(context.Services.GetService <ModelTreeManager>(), WorkflowDesigner.GetTargetFramework(context));
ParserContext parserContext = new ParserContext();
string expressionText = ExpressionHelper.GetExpressionString(expression, parserContext);
if (!string.IsNullOrEmpty(expressionEditor))
{
return(ExpressionTextBox.TryConvertFromString(expressionEditor, expressionText, isLocationExpression, newType, out newExpression));
}
}
return(false);
}
