/// <summary>
/// 复制一个流程的节点描述，生成一个新的key
/// </summary>
/// <returns></returns>
public virtual IWfActivityDescriptor CloneDescriptor()
{
WfActivityDescriptor result = CreateNewDescriptor();
result.Key = this.Process.FindNotUsedActivityKey();
result.Name = this.Name;
result.Description = this.Description;
this.Variables.ForEach(variable => result.Variables.Add(variable));
this.Resources.ForEach(resource => result.Resources.Add(resource));
foreach (KeyValuePair <string, object> kp in this.ExtendedProperties)
{
result.ExtendedProperties.Add(kp.Key, kp.Value);
}
return(result);
}
/// <summary>
/// 在向 DictionaryBase 实例中插入新元素之前执行其他自定义进程
/// </summary>
/// <param name="index">index</param>
/// <param name="value">value</param>
/// <remarks>
/// 处理过程：先在WfActivityDescriptorCollection中检验所加点的合法性ValidateActivity()（只能由一个开始点和一个结束点）
/// 将_Process值赋给item.Process，使每个点都包含全部流程点的属性，方便从任一点遍历整个流程
/// </remarks>
protected override void OnInsert(int index, object value)
{
WfActivityDescriptor item = (WfActivityDescriptor)value;
ValidateActivity(item);
item.Process = _Process;
base.OnInsert(index, value);
if (item is IWfInitialActivityDescriptor)
{
_InitialActivity = (IWfInitialActivityDescriptor)item;
}
else
if (item is IWfCompletedActivityDescriptor)
{
_CompletedActivity = (IWfCompletedActivityDescriptor)item;
}
}
