public static void writeInstance(XmlTextWriter xmlWriter, Instance instance)
{
xmlWriter.WriteStartElement("Instance");
xmlWriter.WriteAttributeString("type_ref", instance.Type.Id.ToString());
xmlWriter.WriteAttributeString("identifier", instance.Identifier);
xmlWriter.WriteAttributeString("isArray", instance.IsArray.ToString());
if (instance is ValueInstance)
{
ValueInstance valueInstance = (ValueInstance)instance;
xmlWriter.WriteAttributeString("value", valueInstance.Value);
}
else if (instance is ArrayInstance)
{
ArrayInstance arrayInstance = (ArrayInstance)instance;
foreach (Instance inst in arrayInstance.ArrayItems)
{
writeInstance(xmlWriter, inst);
}
}
else if (instance is ReferenceInstance)
{
ReferenceInstance referenceInstance = (ReferenceInstance)instance;
foreach (Instance inst in referenceInstance.Properties)
{
writeInstance(xmlWriter, inst);
}
}
xmlWriter.WriteEndElement();
}
// 进程模板选中项变化的处理
private void process_ComboBox_Changed(object sender, SelectionChangedEventArgs e)
{
// 安全锁锁定时不做任何修改
if (TopoNodeEWVM.SafetyLock)
{
return;
}
// 清空属性列表
TopoNodeEWVM.TopoNode.Properties.Clear();
// 获取选中的Process
ComboBox process_ComboBox = ControlExtensions.FindControl <ComboBox>(this, "process_ComboBox");
if (process_ComboBox.SelectedItem == null)
{
return;
}
Process process = (Process)process_ComboBox.SelectedItem;
// 构造这个属性列表
foreach (Attribute attribute in process.Attributes)
{
if (attribute.Type is UserType) // 复合类型
{
ReferenceInstance referenceInstance = ReferenceInstance.build((UserType)attribute.Type, attribute.Identifier);
TopoNodeEWVM.TopoNode.Properties.Add(referenceInstance);
}
else // 基本类型
{
ValueInstance valueInstance = new ValueInstance(attribute.Type, attribute.Identifier);
TopoNodeEWVM.TopoNode.Properties.Add(valueInstance);
}
}
ResourceManager.mainWindowVM.Tips = "进程模板被修改为[" + process.Name + "]，例化对象已重新生成";
}
public static Instance readInstance(XmlNode node, Dictionary <int, Type> typeDict)
{
XmlElement element = (XmlElement)node;
int typeRef = int.Parse(element.GetAttribute("type_ref"));
Debug.Assert(typeDict.ContainsKey(typeRef));
string identifier = element.GetAttribute("identifier");
bool isArray = bool.Parse(element.GetAttribute("isArray"));
// 使用临时Attribute来构造Instance
Attribute attribute = new Attribute(
typeDict[typeRef],
identifier,
isArray,
true
);
if (isArray) // 数组类型，继续解析数组项
{
ArrayInstance arrayInstance = new ArrayInstance(attribute);
foreach (XmlNode childNode in node.ChildNodes)
{
Instance itemInstance = readInstance(childNode, typeDict);
arrayInstance.ArrayItems.Add(itemInstance);
}
return(arrayInstance);
}
else if (typeDict[typeRef] is UserType) // 引用类型，继续解析成员
{
ReferenceInstance referenceInstance = new ReferenceInstance(attribute);
foreach (XmlNode childNode in node.ChildNodes)
{
Instance propInstance = readInstance(childNode, typeDict);
referenceInstance.Properties.Add(propInstance);
}
return(referenceInstance);
}
else // 值类型，要把值读出来
{
ValueInstance valueInstance = new ValueInstance(attribute);
valueInstance.Value = element.GetAttribute("value");
return(valueInstance);
}
}
